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O-36-08 06/23/2008
VILLAGE OF LEMONT ORDINANCE NO.1 3 ` G� AN ORDINANCE AMEDING THE LEMONT UNIFIED DEVELOPMENT ORDINANCE OF 2008, LEMONT, ILLINOIS ADOPTED BY THE PRESIDENT AND BOARD OF TRUSTEES OF THE VILLAGE OF LEMONT THIS 23RD DAY OF JUNE, 2008 Published in pamphlet form by authority of the President and Board of Trustees of the Village of Lemont, Cook, DuPage, and Will Counties, Illinois this 23rd day of June, 2008. ORDINANCE NO. 0 •36 Q AN ORDINANCE AMEDING THE LEMONT UNIFIED DEVELOPMENT ORDINANCE OF 2008, LEMONT, ILLINOIS WHEREAS, the Village of Lemont approved Ordinance 0 -07 -08 adopting the Lemont Unified Development Ordinance of 2008 with an effective date of March 15, 2008; and WHEREAS, on June 17, 2008, the Lemont Planning & Zoning Commission, in accordance with the requirements of the Illinois Combined Statutes and the Unified Development Ordinance conducted a public hearing on proposed amendments to the zoning and land use regulations of the Unified Development Ordinance; and WHEREAS, a notice of the aforesaid public hearing was made in the manner provided by law and was published in the Daily Southtown, a newspaper of general circulation within the Village; and WHEREAS, The Lemont Planning & Zoning Commission found that the proposed amendments were consistent with the purposes of the Unified Development Ordinance and voted 7 -0 to recommend their approval; and NOW, THEREFORE, BE IT ORDAINED by the President and Board of Trustees of the Village of Lemont, that the Lemont Unified Development Ordinance of 2008 is hereby amended as follows: Chapter 17.02 Add the following definition to Chapter 17.02: "BIOSWALE A channel vegetated with native mesic and wet plant communities that is used for the storage and temporary run -off of storm water" Chapter 17.02 Add the following definition to Chapter 17.02: "SUBDIVISON Subdivision is (1) a described tract of and which is to be, or has been, divided into two or more parcels of land; and (2) any division of land which creates a lot for transfer of ownership and/or building development where a new street is involved; or (3) the dedication of streets, ways, or other areas for the use of the public. The term subdivision includes resubdivision, and where it is appropriate to the context, relates to the process of subdividing or the land subdivided. For the purposes of this ordinance, however, the following cases shall not constitute a "subdivision :" a. The division of a tract, parcel, or lot into parcels or lot lots all of which resultant parcels or lots exceed five acres, and if a new street is not involved; or b. The division of land for the purpose of transfer of ownership to adjoining property owners and such division does not create an additional lot or lots, provided that a contract for sale requiring conformity with this ordinance has been entered into; or c. The conveyance of parcels of land or interests therein for use as right -of -way for railroads or other public utility facilities and other pipelines, which does not involve any new street or easement of access." 417.04.020 Add a new paragraph E to §17.04.020 as follows: "E. Costs. The applicant shall be responsible for the payment of the Village's direct costs associated with review and processing of the land use application, including, but not limited to: public notice costs, fees of consultants hired by the Village to evaluate the application, recordation and preparation of the public record, services of a court reporter, and removal of the public notice sign. In order to ensure payment, the applicant shall be required to establish with the Village an escrow account upon application. The escrow amount shall be based on anticipated costs associated with the application. Action on the application may be withheld pending establishment of the account, replenishment of the escrow account, or reimbursement of the Village's direct costs. The escrow account requirement may be waived by the Community Development Director. See Appendix A for a list of minimum escrow fees." 417.04.110.A Change §17.04.110.A to read in its entirety: "A. Overview. When a new lot is created for the purpose of transfer of ownership and/or building development or a new street is involved, a certified Plat of Subdivision shall be required. The Final Plat of Subdivision shall be in conformance with the applicable lot standards of this ordinance unless a variation is granted by the Village Board. Subdivision of land requires a land/cash contribution in accordance with Chapter 17.18 of this ordinance. Platting shall follow accepted engineering and planning standards, to include the avoidance of flag lots, lots that are not generally rectilinear in shape, or lots that are not readily accessible to public rights of way. There are two different approval processes for the subdivision of land:" 417.04.110.D In paragraph D of §17.04.110, immediately following the sentence "(See Appendix C for final plat certificates)" change the remainder of the paragraph to read: "The final plan/plat shall be in substantial compliance with the preliminary plan/plat, i.e. the number of dwelling units has not been increased, height of buildings has not been increased, building materials are the same or of equal quality, and the general quantities and quality of the landscaping material is the same, and any changes to the final engineering plans do not alter the general design characteristics of the preliminary plan/plat." 417.04.120.B Change paragraph B of §17.04.120 to read in its entirety: "B. Approval. Upon receiving the recommendation from the Community Development Director, the Village Board shall consider the lot consolidation and approve or deny the application. The lot consolidation shall be approved by a simple majority of the corporate authorities." 517.04.150.D.c In §17.04.150.D.c change the word "determent" to "detriment" Table 17 -06-01 Change Table 17 -06 -01 as it relates to permitted and special uses for the INT district as follows: Change the land use "bed and breakfast" from a permitted use to a land use that is not allowed; and Change the land use "hotel /motel" from a permitted use to a land use that is not allowed; and Change the land use "youth hostel" from a permitted use to a land use that is not allowed; and Change the land use "library, public" from a land use that is not allowed to a permitted use; and Change the land use "municipal facilities" from a land use that is not allowed to a permitted land use; and Change the land use "parks and playgrounds" from a land use that is not allowed to a permitted use; and Change the land use "college and university" from a land use that is not allowed to a special use; and Change the land use "school, K thru high school" from a land use that is not allowed to a permitted use; and Change the land use "trade school" from a land use that is not allowed to a special use. Table 17 -06 -02 In Table 17- 06 -02, under the use category for "Decks and terraces in a residential district" change the description to read in its entirety: "Decks and terraces in a residential district, provided they are: at least 15 ft from all lot lines in districts R -1, R -2, R -3, and R -4; and in districts R -4A, R -5, and R -6 at least 10 ft from al lot lines or equal to the setback of a conforming principal structure, whichever is less." 417.06.030.H Change the first sentence of paragraph H of §17.06.030 to read as follows: "The combined square footage of all accessory structures, driveways, sidewalks, or other areas with an impervious surface shall not exceed 30% of the area of a required yard except :" 417.11.150.E.1 4 Change §17.11.150.E.1 to read in its entirety: "One wall sign per retail unit of a building shall be permitted. Retail units on corner locations within buildings shall be permitted a wall sign on each wall that faces a public street." 417.11.200.B In §17.11.200. B add Map 17- 11 -02, attached hereto and made a part hereof as Exhibit A, depicting area where electronic message center signs are allowed (see attached map). 417.11.200.B.1 In §17.11.200.B.I change sentence to read: "The electronic message center shall not comprise more than 25% of the sign area." 417.18.040 Starting in line 4 of §17.18.040 change the sentence to read in its entirety: "The dedication of land or a cash contribution in lieu of land required by this ordinance shall also be required as a condition to the annexation of land, or as a condition to the subdivision of land either within the Village or within 1.5 miles of the Village limits, and such provisions shall be incorporated into any pre - annexation agreement or annexation agreement governing such land. Any required cash contribution shall be submitted to the Village prior to the approval of a Final Plat of Subdivision. In instances where development occurs without the need to subdivide land, required cash contributions shall be paid at time of site development or building permit application, whichever occurs first." Chapter 17.19 Replace Chapter 17.19 in its entirety with FIRM Floodplain Ordinance, attached here to and made part hereof as Exhibit B, and renumber said attachment to conform to the numbering style and section and paragraph heading as provided for in §17.01.060 of the Unified Development Ordinance. 417.20.040.B.5 Change §17.20.040.B.5 to read in its entirety: "5. Six small shrubs or equivalent ornamental grasses, e.g. six size #3 pots." 417.20.060 Following the introductory sentence to §17.20.060 ( "Transition yards.... in accordance with this section. ') add the following sentence: "Public parks shall be exempt from the landscaping provisions of paragraph C of this section." 517.26.110A.1 Change Section §17.26.110.A.1 to read in its entirety as follows: "l. All development shall include provisions for the construction of curb and gutter improvements designed in accordance with this Section. Curb and gutter shall be installed along all streets and parking areas. Bioswales may be used in lieu of curb and gutter along the edges of parking areas and roadways within public parks." Appendix B Replace the current Appendix B with Exhibit C, attached hereto and made a part hereof. Appendix C Replace the current Appendix C with Exhibit D, attached hereto and made a part hereof. Appendix F, Table 1 Replace the current Table F -1 of Appendix F with Exhibit E, attached hereto and made a part hereof. Appendix G Replace the current Appendix G with Exhibit F, attached hereto and made a part hereof. Zoning Map On the Village of Zoning Map rezone all parcels zoned ORI to M -1 Light Manufacturing District. PASSED AND APPROVED BY THE PRESIDENT AND BOARD OF TRUSTEES OF THE VILLAGE OF LEMONT, COUNTIES OF COOK, WILL, AND DU PAGE, ILLINOIS, on this 23t day of June, 2008. Debby Blatzer Peter Conies Cliff Miklos Brian Reaves Ron Stapleton Jeanette Virgilio AYES NAYS PASSED ABSENT Attest: JOHN . ' IAZZA, Villa ENE M. • EN, Village Clerk Electronic Message Center Overlay District FLOODPLAIN ORDINANCE Be it ordained by the President and Board of Trustees of the Village of Lemont, Illinois as follows: Section 100.0 Index Section Paae 100.0 Index 1 200.0 Purpose 2 300.0 Definitions... 3 400.0 How to Use This Ordinance 13 500.0 Duties of Enforcement Official 14 600.0 Base flood Elevation 18 700.0 Occupation and Use of Flood Fringe Areas 20 800.0 Occupation and Use of Designated Floodways. 25 900.0 Occupation and Use of Special Flood Hazard Areas Where Floodways Are Not Identified 41 1000.0 Permitting Requirements Applicable to All Floodplain Areas and Protection of Buildings, 47 1100.0 Other Development Requirements 53 1200.0 Variances 54 1300.0 Disclaimer of Liability 55 1400.0 Penalty 56 1500.0 Abrogation and Greater Restrictions 56 1600.0 Severability, 57 1700.0 Effective Date 57 1 Section 200.0 Purpose This Ordinance is enacted pursuant to the police powers granted to this Village by 65 ILCS 5/1 -2- 1, 5/11- 12 -12, 5/11 -30 -2, 5/11 -30 -8, and 5/11 -31 -2. The purpose of this Ordinance is to maintain this Village's eligibility in the National Flood Insurance Program; to minimize potential losses due to periodic flooding including loss of life, loss of property, health and safety hazards, disruption of commerce and governmental services, extraordinary public expenditures for flood protection and relief, and impairment of the tax base, all of which adversely affect the public health, safety and general welfare; and to preserve and enhance the quality of surface waters, conserve economic and natural values and provide for the wise utilization of water and related land resources. This Ordinance is adopted in order to accomplish the following specific purposes: 200.1 To meet the requirements of 615 ILCS 5/18(g) Rivers, Lakes and Streams Act; 200.2 To assure that new development does not increase the flood or drainage hazards to others, or creating unstable conditions susceptible to erosion; 200.3 To protect new buildings and major improvements to buildings from flood damage; 200.4 To protect human life and health from the hazards of flooding; 200.5 To lessen the burden on the taxpayer for flood control projects, repairs to flood - damaged public facilities and utilities, and flood rescue and relief operations; and 200.6 To make federally subsidized flood insurance available for property in the Village by fulfilling the requirements of the National Flood Insurance Program; 200.7 To comply with the rules and regulations of the National Flood Insurance Program codified as 44 CFR 59-79, as amended. 200.8 To protect, conserve, and promote the orderly development of land and water resources; and 200.9 To preserve the natural characteristics and functions of watercourses and floodplains in order to moderate flood and stormwater impacts, improve water quality, reduce soil erosion, protect aquatic and riparian habitat, provide recreational opportunities, provide aesthetic benefits and enhance community and economic development. 2 Section 300.0 Definitions For the purposes of this Ordinance, the following definitions are adopted: 300.1 Accessory Structure A non - habitable structure which is on the same parcel of property as the principal structure to be insured and the use of which is incidental to the use of the principal structure. 300.2 Act An act in relation to the regulation of the rivers, lakes and streams of the State of Illinois ", 615 ILCS 5/5 et seq. 300.3 Applicant Any person, firm, corporation or agency which submits an application. 300.4 Appropriate Use Only uses of the designated floodway that are permissible and will be considered for permit issuance. The only uses that will be allowed are as specified in Section 802.0. 300.5 Base Flood The flood having a one - percent chance of being equaled or exceeded in any given year. The base flood is also known as the 100 -year frequency flood event. Application of the base flood elevation at any location is as defined in Section 600.0 of this Ordinance, 300.6 Base Flood Elevation (BFE) The elevation in relation to mean sea level of the crest of the base flood. 300.7 Basement That portion of the building having its floor subgrade (below ground level) on all sides. 300.8 Building A walled and roofed structure, including gas or liquid storage tank, that is principally above ground, including manufactured homes, prefabricated buildings, and gas or liquid storage tanks. The term also includes recreational vehicles and travel trailers installed on a site for more than 180 days per year. 300.9 Channel Any river, stream, creek, brook, branch, natural or artificial depression, ponded area, flowage, slough, ditch, conduit, culvert, gully, ravine, wash, or natural or man -made drainageway, which has a definite bed and banks or shoreline, in or into which surface or groundwater flows, either perennially or intermittently. 300.10 Channel Modification Alteration of a channel by changing the physical dimensions or materials of its bed or banks Channel modification includes damming, rip- rapping (or other armoring), widening, deepening, straightening, relocating, lining and significant removal of native vegetation from the bottom or banks. Channel modification does not include the clearing of dead or dying vegetation, debris, or trash from the channel. Channelization is a severe form of channel modification involving a significant change in the channel cross - section and typically involving relocation of the existing channel (eg. straightening). 3 300.11 Compensatory Storage An artificially excavated, hydraulically equivalent volume of storage within the SFHA used to balance the loss of natural flood storage capacity when artificial fill or structures are placed within the floodplain. The uncompensated loss of natural floodplain storage can increase off -site floodwater elevations and flows. 300.12 Conditional Approval of a Designated Floodway Map Change Preconstruction approval by IDNRIOWR and FEMA of a proposed change to the floodway map. This preconstruction approval, pursuant to this Part, gives assurances to the property owner that once an Appropriate Use is constructed according to permitted plans, the floodway map can be changed, as previously agreed, upon review and acceptance of as -built plans. 300.13 Conditional Letter of Map Revision (CLOMR) A letter which indicates that FEMA will revise base flood elevations, flood insurance rate zones, flood boundaries or floodway as shown on an effective Flood Hazard Boundary Map or Flood Insurance Rate Map, once the as -built plans are submitted and approved. 300.14 Control Structure A structure designed to control the rate of flow that passes through the structure, given a specific upstream and downstream water surface elevation. 300.15 Critical Facility Any facility which is critical to the health and welfare of the population and, if flooded, would create an added dimension to the disaster. Damage to these critical facilities can impact the delivery of vital services, can cause greater damage to other sectors of the community, or can put special populations at risk. Examples of critical facilities where flood protection should be required include: emergency services facilities (such as fire and police stations), schools, hospitals, retirement homes and senior care facilities, major roads and bridges, critical utility sites (telephone switching stations or electrical transformers), and hazardous material storage facilities (chemicals, petrochemicals, hazardous or toxic substances). Examples of critical facilities where flood protection is recommended include: sewage treatment plants, water treatment plants, and pumping stations. 300.16 Dam All obstructions, wall embankments or barriers, together with their abutments and appurtenant works, if any, constructed for the purpose of storing or diverting water or creating a pool. Dams may also include weirs, restrictive culverts or impoundment structures. Underground water storage tanks are not included. 4 300.17 Designated Floodway The channel, including on- stream lakes, and that portion of the floodplain adjacent to a stream or watercourse, generally depicted on the FEMA FIRM map, which is needed to store and convey the existing 100 -year frequency flood discharge with no more than a 0.1 foot increase in stage due to the loss of flood conveyance or storage, and no more than a 10 percent increase in velocities. 300.17.1 The floodways are designated for on the countywide Flood Insurance Rate Map of Cook prepared by FEMA and dated August 19, 2008. When two floodway maps exist for a waterway, the more restrictive floodway limit shall prevail. 300.17.2 The floodways for those parts of unincorporated Cook County that are within the extraterritorial jurisdiction of the Village that may be annexed into the Village are designated for on the countywide Flood Insurance Rate Map prepared by FEMA and dated August 19, 2008. 300.17.3 To locate the designated floodway boundary on any site, the designated floodway boundary should be scaled off the designated floodway map and located on a site plan, using reference marks common to both maps. Where interpretation is needed to determine the exact location of the designated floodway boundary, IDNR/OWR should be contacted for the interpretation. 300.18 Development Any man -made change to real estate, including: 300.18.1 Construction, reconstruction, repair, or placement of a building or any addition to a building. 300.18.2 Installing a manufactured home on a site, preparing a site for a manufactured home, or installing a travel trailer or recreational vehicle on a site for more than 180 days. If the travel trailer or recreational vehicle is on site for more than 180 days, it must be fully licensed and ready for highway use. 300.18.3 Drilling, mining, installing utilities, construction of roads, bridges, or similar projects. 300.18.4 Demolition of a structure or redevelopment of a site. 300.18.5 Clearing of land as an adjunct of construction. 5 300.18.6 Construction or erection of levees, walls, fences, darns, or culverts; channel modification; filling, dredging, grading, excavating, paving, or other non - agricultural alterations of the ground surface; storage of materials; deposit of solid or liquid waste. 300.18.7 Any other activity of man that might change the direction, height, or velocity of flood or surface water, including extensive vegetation removal. 300.18.8 Substantial improvement of an existing building. Development does not include routine maintenance of existing buildings and facilities such as re- roofing or re- surfacing of roads when there is no increase in elevation, or gardening, plowing, and similar agricultural practices that do not involve filling, grading, or construction of levees. 300.19 Elevation Certificates A form published by FEMA that is used to certify the elevation to which a building has been elevated. 300.20 Erosion The general process whereby soils are moved by flowing water or wave action. 300.21 Exempt Organizations Organizations which are exempt from this Ordinance per Illinois Compiled Statutes (1LCS) including state, federal or local units of government. 300.22 Existing Manufactured Home Park or Subdivision A manufactured home park or subdivision for which the construction of facilities for servicing the lots on which the manufactured homes are to be affixed (including, at a minimum, the installation of utilities, the construction of streets, and either final site grading or the pouring of concrete pads) has been completed before April 1, 1990. 300.23 Expansion to an Existing Manufactured Home Park or Subdivision The preparation of additional sites by the construction of facilities for servicing the lots on which the manufactured homes are to be affixed (including the installation of utilities, the construction of streets, and either final site grading or the pouring of concrete pads). 300.24 FEMA Federal Emergency Management Agency and its regulations at 44 CFR 59 -79, as amended, 300.25 Flood A general and temporary condition of partial or complete inundation of normally dry land areas from overflow of inland or tidal waves, or the unusual and rapid accumulation or runoff of surface waters from any source. 6 300.26 Flood Frequency A period of years, based on a statistical analysis, during which a flood of a stated magnitude may be expected to be equaled or exceeded. 300.27 Flood Fringe That portion of the floodplain outside of the designated floodway. 300.28 Flood Insurance Rate Maps (FIRM) A map prepared by FEMA that depicts the Special Flood Hazard Area (SFHA) within a community. This map includes insurance rate zones and floodplains and may or may not depict floodways. 300.29 Flood Insurance Study An examination, evaluation and determination of flood hazards and if appropriate, corresponding water surface elevations. 300.30 Floodplain That land typically adjacent to a body of water with ground surface elevations at or below the base flood or the 100 -year frequency flood elevation. Floodplains may also include detached Special Flood Hazard Areas, ponding areas, etc. The floodplain is also known as the Special Flood Hazard Area (SFHA). 300.30.1 The floodplains are those lands within the jurisdiction of the Village that are subject to inundation by the base flood or 100 -year frequency flood, The SFHAs of the Village are generally identified as such on panel numbers 567G, 569G, 579G, 583G, 586G, 587G, 588G, 589G, 591G, and 593G of the countywide Flood Insurance Rate Map of the Village prepared by the Federal Emergency Management Agency and dated August 19, 2008. 300.30.2 The SFHAs of those parts of unincorporated Cook County that are within the extraterritorial jurisdiction of the Village or that may be annexed into the Village are generally identified as such on panel numbers 567G, 569G, 579G, 583G, 586G, 587G, 588G, 589G, 591G, and 593G of the countywide Flood Insurance Rate Map prepared for Cook County by the Federal Emergency Management Agency) and dated August 19, 2008. 300.31 Floodproofng Any combination of structural and non - structural additions, changes or adjustments to structures which reduce or eliminate flood damage to real estate or improved real property, water and sanitary facilities, structures and their contents. 7 300.32 Floodproofing Certificate A form published by P MA that is used to certify that a building has been designed and constructed to be structurally dry floodproofed to the flood protection elevation. 300.33 Flood Protection Elevation (FPE) The elevation of the base flood or 100 -year frequency floods plus two feet of freeboard at any given location in the SFHA. 300.34 Floodway See 300 17 Designated Floodway. 300.35 Historic Structure Any structure that is: 300.35.1 Listed individually in the National Register of Historic Places or preliminary determined by the Secretary of the Interior as meeting the requirements for individual listing on the National Register; 300.35.2 Certified or preliminary determined by the Secretary of the Interior as contributing to the historic district or a district preliminary determined by the Secretary to qualify as a registered historic district; 300.35.3 Individually listed on the State inventory of historic places by the Illinois Historic Preservation Agency; 300.35.4 Individually listed on a local inventory of historic places that has been certified by the Illinois Historic Preservation Agency. 300.36 Hydrologic and Hydraulic Calculations Engineering analysis which determine expected flood flows and flood elevations based on land characteristics and rainfall events. 300.37 IDNR/OWR Illinois Department of Natural Resources, Office of Water Resources. 300.38 Letter of Map Amendment (LOMA) Official determination by FEMA that a specific structure is not in a 100 -year floodplain; amends the FIRM. 300.39 Letter of Map Revision (LOMR) Letter that revises base flood or 100 -year frequency flood elevations, floodplains or floodways as shown on an effective FIRM. 300.40 Lowest Floor The lowest floor of the lowest enclosed area (including basement). An unfinished or flood resistant enclosure usable solely for parking of vehicles, building access or storage, in an area other than a basement area is not considered a buildings lowest floor; provided that such enclosure is not built so as to render the structure in violation of the applicable non - elevation design requirements of this ordinance. 8 300.41 Manufactured Home A structure, transportable in one or more sections, which is built on a permanent chassis and is designated for use with or without a permanent foundation when attached to the required utilities. The term "manufactured home" also includes park trailers, travel trailers and other similar vehicles placed on site for more than 180 consecutive days. The term "manufactured home" does not include a "recreational vehicle ". 300.42 Manufactured Home Park or Subdivision A parcel (or contiguous parcels) of land divided into two or more manufactured home lots for rent or sale. 300.43 Mitigation Mitigation includes those measures necessary to minimize the negative effects which floodplain development activities might have on the public health, safety and welfare. Examples of mitigation include: excavation of compensatory storage, soil erosion and sedimentation control, and channel restoration. Mitigation may also include those activities taken to reduce a structure's susceptibility to flooding. 300.44 New Construction New construction means structures for which the start of construction commenced on or after the effective date of a floodplain management regulation adopted by a community and includes any subsequent improvements to such structures. 300.45 New Manufactured Home Park or Subdivision Manufactured home park or subdivision for which the construction of facilities for servicing the lots on which the manufactured homes are to be affixed (including at a minimum, the installation of utilities, the construction of streets, and either final site grading or the pouring of concrete pads) has been completed on or after April 1, 1990. 300.46 NAVD 88 National American Vertical Datum of 1988. NAVD 88 supersedes the National Geodetic Vertical Datum of 1929 (NGVD). 300.47 Natural When used in reference to channels means those channels formed by the existing surface topography of the earth prior to changes made by man. A natural stream tends to follow a meandering path; its floodplain is not constrained by levees; the area near the bank has not been cleared, mowed or cultivated; the stream flows over soil and geologic materials typical of the area with no substantial alteration of the course or cross - section of the stream caused by filling or excavating. A modified channel may regain some natural characteristics over time as the channel meanders and vegetation is re- established. Similarly, a modified channel may be restored to more natural conditions by man through regarding and revegetation. 9 300.48 Ordinary High Water Mark (OHWM) The point on the bank or shore up to which the presence and action of surface water is so continuous so as to leave a distinctive mark such as by erosion, destruction or prevention of terrestrial vegetation, predominance of aquatic vegetation or other easily recognized characteristics. 300.49 Public Flood Control Project A flood control project which will be operated and maintained by a public agency to reduce flood damages to existing buildings and structures, including a hydrologic and hydraulic study of the existing and proposed conditions of the watershed, Nothing in this definition shall preclude the design, engineering, construction or financing, in whole or in part, of a flood control project by persons or parties who are not public agencies. 300.50 Public Bodies of Waters All open public streams and lakes capable of being navigated by watercraft, in whole or in part, for commercial uses and purposes, and all lakes, rivers, and streams which in their natural condition were capable of being improved and made navigable, or that are connected with or discharge their waters into navigable lakes or rivers within, or upon the borders of the State of Illinois, together with all bayous, sloughs, backwaters, and submerged lands that are open to the main channel or body of water directly accessible thereto. 300.51 Recreational Vehicle or Travel Trailer A vehicle which is: 300.51.1 Built on a single chassis; 300.51.2 400 square feet or less when measured at the largest horizontal projection; 300.51.3 Designed to be self - propelled or permanently towable by a light duty truck; and 300.51.4 Designed primarily not for use as a permanent dwelling but as temporary living quarters for recreational, camping, travel, or seasonal use. 300.52 Regional Permits Regional permits are offered for pre- approved projects which are considered minor projects that are permissible per IDNR /OWR Part 3708 rules for Northeastern Illinois regulatory floodways. A complete listing of the terms and conditions for specific project types can be obtained from the IDNR/OWR website. 300.53 Registered Land Surveyor A land surveyor registered in the State of Illinois, under The Illinois Land Surveyors Act (225 ILCS 330/1, et seq.) 10 300.54 Registered or Licensed Professional Engineer An engineer registered in the State of Illinois, under The Illinois Professional Engineering Practice Act (225 ILCS 325/1 et seq. ) 300.55 Repair, Remodeling or Maintenance Development activities which do not result in any increases in the outside dimensions of a building or any changes to the dimensions of a structure. 300.56 Repetitive Loss Flood- related damages sustained by a structure on two separate occasions during a 10 -year period for which the cost of repairs at the time of each such flood event, on the average, equals or exceeds 25 percent of the market value of the structure before the damaged occurred. 300.57 Retention /Detention Facility A retention facility stores stormwater runoff without a gravity release. A detention facility provides for storage of stormwater runoff and controlled release of this runoff during and after a flood or storm. 300.58 Riverine SFHA Any SFHA subject to flooding from a river, creek, intermittent stream, ditch, on- stream lake system or any other identified channel. This term does not include areas subject to flooding from lakes, ponding areas, areas of sheet flow, or other areas not subject to overbank flooding. 300.59 Runoff The water derived from melting snow or rain falling on the land surface, flowing over the surface of the ground or collected in channels or conduits. 300.60 Sedimentation The processes that deposit soils, debris, and other materials either on other ground surfaces or in bodies of water or watercourses. 300.61 Special Flood Hazard Area (SFHA) See 300.30 "Floodplain ". 300.62 Start of Construction Includes substantial improvement, and means the date the building permit was issued, provided the actual start of construction, repair, reconstruction, rehabilitation, addition placement, or other improvement was within 180 days of the permit date. The actual start means either the first placement of permanent construction of a structure on a site, such as the pouring of slab or footings, the installation of piles, the construction of columns, or any work beyond the stage of excavation; or placement of a manufactured home on a foundation. 300.63 Statewide Permits Statewide permits are offered for pre- approved projects that are considered minor projects which are permissible per the IDNR /OWR Part 3700 rules. A complete listing of the statewide permits and permit requirements can be obtained from the IDNR/OWR website. 11 300.64 Structure See 300.8 'Building° 300.65 Substantial Damage Damage of any origin sustained by a structure whereby the cumulative percentage of damage during the life of the building equals or exceeds 50 percent of the market value of the structure before the damage occurred regardless of actual repair work performed. Volunteer labor and materials must be included in this determination. The term includes Repetitive Loss Buildings See 300.56 "Repetitive Loss ", 300.66 Substantial Improvement Any reconstruction, rehabilitation, addition, or improvement of a structure taking place during the life of the building in which the cumulative percentage of improvements equals or exceeds 50 percent of the market value of the structure before the improvement or repair is started. 300.66.1 "Substantial Improvement" is considered to occur when the first alteration of any wall, ceiling, floor, or other structural part of the building commences, whether or not that alteration affects the external dimensions of the building. This term includes structures which have incurred repetitive loss or substantial damage, regardless of the actual work done. 300.66.2 The term does not, however, include either: 300.66.2.1 any project for improvement of a structure to comply with existing state or local health, sanitary, or safety code specifications which are solely necessary to assure safe living conditions, or 300.66.2.2 any alteration of a "historic structure" listed on the National Register of Historic Places or the Illinois Register of Historic Places, provided that the alteration will not preclude the structure's continued designation as a historic structure. 300.67 Transition Section Reaches of the stream or floodway where water flows from a narrow cross- section to a wide cross - section or vice versa. 300.68 Violation The failure of a structure or other development to be fully compliant with the community's floodplain management regulations. A structure or other development without the elevation certificate, other certifications, or other evidence of compliance is presumed to be in violation until such time as that documentation is provided. 12 Section 400.0 How to Use This Ordinance 400.01 The Community Development Director shall be responsible for fulfilling all of the duties listed in Section 500.0. 400.02 To fulfill those duties, Community Development Director should first use the criteria listed in Section 600.0, Base Flood Elevations, to determine whether the development site is located within a floodplain. 400.03 Once it has been determined that a site is located within a floodplain, the must determine whether the development site is within a flood fringe, a designated floodway, or within a SFHA or floodplain for which no floodway has been identified. 400.03.1 If the site is within a flood fringe, Community Development Director shall require that the minimum requirements of Section 700.0 be met. 400.03.2 If the site is within a floodway Community Development Director shall require that the minimum requirements of Section 800.0 be met. 40003.3 If the site is located within a SFHA or floodplain for which no detailed study has been completed and approved, the Community Development Director shall require that the minimum requirements of Section 900.0 be met. 400.04 In addition, the general requirements of Section 1000.0 shall be met for all developments meeting the requirements of Section 700.0, 800.0, or 900.0. 400.05 The Community Development Director shall assure that all subdivision proposals shall meet the requirements of Section 1100.0. 400.06 If a variance is to be granted for a proposal, the Community Development Director shall review the requirements of Section 1200.0 to make sum they are met. In addition, the Community Development Director shall complete all notification requirements. 400.07 In order to assure that property owners obtain permits as required in this Ordinance, Community Development Director may take any and all actions as outlined in Section 1400.0. 13 Section 500.0 Duties of the Community Development Director. 501.0 Determining the Floodplain Designation. 1 501.1 Check all new development sites to determine whether they are in a Special Flood Hazard Area (SFHA). 501.2 If they are in a SFHA, determine whether they are in a floodway, flood fringe or in a floodplain for which a detailed study has not been conducted and which drains more than one (1) square mile. 501.3 Check whether the development is potentially within an extended SFHA (with a drainage area less than one square mile), indicating that the development would have adverse impacts regarding storage, conveyance, or inundation which would be the basis for the applicant being required to delineate the floodplain and floodway and be subject to the remaining Sections of this Ordinance. 502.0 Professional Engineer Review. 502.1 If the development site is within a floodway or in a floodplain for which a detailed study has not been conducted and which drains more than one square mile, the permit shall be referred to a licensed professional engineer under the employ or contract of the Village for review to ensure that the development meets Sections 800.0 or 900.0. 502.2 In the case of an Appropriate Use, the PE. shall state in writing that the development meets the requirements of Section 800.0. 503.0 Dam Safety Requirements. 503.1 Dams are classified as to their size and their hazard /damage potential in the event of failure. 503.2 The construction or major modification of all Class I (high hazard) and Class II (moderate hazard) dams require an IDNR/OWR dam safety permit. 501.3 Some Class III (low hazard) dams require an IDNR /OWR dam safety permit, depending on the drainage area to the dam, the height of the dam and the impounding capacity behind the dam. Most off - channel detention basins that have an embankment are non jurisdictional Class III dam. It Is not required that IDNR/OWR "sign oft' on all non jurisdictional Class III dams. 14 503.4 A consulting engineer with dam safety knowledge can estimate a hazard classification and determine if an IDNR/OWR dam safety permit is required, 503.5 A permit application submittal must be made to IDNR/OWR for the construction or major modification of. jurisdictional dams. 503.6 Regulated dams may include weirs, restrictive culverts or impoundment structures. 504.0 Other permit requirements. Ensure any and all required federal, state and local permits are received prior to the issuance of a floodplain development permit. 505.0 Plan Review and Permit Issuance. 505.1 Ensure that all development activities within the SFHAs of the jurisdiction of the Village meet the requirements of this Ordinance, and; 505.2 Issue a floodplain development permit in accordance with the provisions of this Ordinance and other regulations of this community when the development meets the conditions of this Ordinance. 506.0 Inspection Review. 506.1 Inspect all development projects before, during and after construction to assure proper elevation of the structure and to ensure compliance with the provisions of this Ordinance; and 506.2 Schedule on an annual basis an inspection of the floodplain and document the results of the inspection. 507.0 Damage Determinations. Make damage determinations of all damaged buildings in the SFHA after a flood to determine substantially damaged structures which must comply with Section 1003.3. 508.0 Elevation and Floodproofing Certificates. Maintain permit files including: 15 508.1 An Elevation Certificate certifying the elevation of the lowest floor (including basement) of a residential or non - residential building subject to Section 1000.0 of this Ordinance, and /or; 508.2 The elevation to which a non - residential building has been floodproofed, using a Floodproofing Certificate, for all buildings subject to Section 1000.0 of this Ordinance. 509.0 Records for Public Inspection. Maintain for public inspection and furnish upon request base flood data, SFHA. and designated floodway maps, copies of federal or state permit documents, variance documentation, Conditional Letter of Map Revision, Letter of Map Revision, Letter of Map Amendment and "as- built" elevation and floodproofing and /or elevation certificates for all buildings constructed subject to this Ordinance. 510.0 State Permits. Ensure that construction authorization has been granted by IDNR /OWR, for all development projects subject to Sections 800.0 and 900.0 of this Ordinance, unless enforcement responsibility has been delegated to the Village. However, the following review approvals are not delegated to the Village and shall require review or permits from IDNR/OWR: 510.1 Organizations which are exempt from this Ordinance, as per the Illinois Compiled Statutes; 610.2 IDNR/OWR projects, dams or impoundment structures as defined in Section 300,16 and all other state, federal or local unit of government projects, including projects of the Village and County, except for those projects meeting the requirements of Section 802.1; 510.3 An engineer's determination that an existing bridge or culvert crossing is not a source of flood damage and the analysis indicating the proposed flood profile, per Section 802.15; 510.4 An engineer's analysis of the flood profile due to Section 80234; 510.5 Alternative transition sections and hydraulically equivalent compensatory storage as indicated in Section 8023 (802.3.1, 802.3.2, 802.3.8); 510.6 Permit issuance of structures within, under, or over publicly navigable rivers, lakes and streams; 16 510.7 Any changes in the mapped floodway or published flood profiles. 511.0 Cooperation with Other Agencies. 511.1 Cooperate with state and federal floodplain management agencies to improve base flood or 100 -year frequency flood and floodway data and to improve the administration of this Ordinance; 511.2 Submit data to IDNR/OWR and FEMA for proposed revisions of a regulatory map within 6 months whenever a modification of the floodplain may change the base flood elevation or result in a change to the floodplain map; 511.3 Submit reports as required for the National Flood Insurance Program; and 511.4 Notify FEMA of any proposed amendments to this Ordinance. 512.0 Promulgate Regulations. Promulgate rules and regulations as necessary to administer and enforce the provisions of this Ordinance, subject however to the review and approval of IDNR/OWR and FEMA for any Ordinance changes. 17 Section 600.0 Base Flood Elevation This Ordinance's protection standard is based on the Flood Insurance Study for the Village. 600.1 If a base flood elevation or 100 -year frequency flood elevation is not available for a particular site, then the protection standard shall be according to the best existing data available from federal, state or other sources. 600.2 When a party disagrees with the best available data, they shall submit a detailed engineering study needed to replace existing data with better data and submit it to IDNR/OWR and FEMA for review and consideration prior to any development of the site. 601.0 The base flood or 100 -year frequency flood elevation for the SFHAs of any river, creek, or stream shall be as delineated on the 100 -year flood profiles in the Flood Insurance Study of the Cook County prepared by FEMA dated August 19, 2008 and such amendments to such study and maps as may be prepared from time to time. 602.0 The base flood or 100 -year frequency flood elevation for the SFHAs of those parts of unincorporated Cook County that are within the extraterritorial jurisdiction of Village or that may be annexed into the Village shall be as delineated on the 100 -year flood profiles in the Flood Insurance Study of Cook County prepared by FEMA and dated August 19, 2008 and such amendments or revisions to such study and maps as may be prepared from time to time. 603.0 The base flood or 100 -year frequency flood elevation for each SFHA delineated as an "AH Zone" or "AO Zone" shall be that elevation (or depth) delineated on the countywide Flood Insurance Rate Map of Cook County. 604.0 The base flood or 100 -year frequency flood elevation for each of the remaining SFHAs delineated as an "A Zone" on the countywide Flood Insurance Rate Map of Cook county shall be according to the best existing data available from federal, state or other sources. Should no other data exist, an engineering study must be financed by the applicant to determine base flood elevations. 604.1.1 When no base flood or 100 -year frequency flood elevation exists, the base flood or 100 -year frequency flood elevation for a riverine SFHA shall be determined from a backwater model, such as HEC -II, HEC- RAS, or a dynamic model such as HIP. 18 II 604.1.2 The flood flows used in the hydraulic models shall be obtained from a hydrologic model, such as HEC -HMS, HEC -1, TR -20, or HIP, or by techniques presented in various publications prepared by the United States Geological Survey for estimating peak flood discharges. 604.1.3 For a non- riverine SFHA, the Base Flood Elevation shall be the historic Flood of Record plus three feet (3), unless calculated by a detailed engineering study. 604.1.4 For an unmapped extended SFHA (with a drainage area less than one square mile) which has been identified by the Community Development Director pursuant to Section 501.3, the base flood elevation shall be determined by the applicant utilizing a method as approved in Section 604. 19 Section 700.0 Occupation and Use of Flood Fringe Areas Development in and /or filling of the flood fringe will be permitted if protection is provided against the base flood or 100 -year frequency flood by proper elevation, and compensatory storage, and other applicable provisions of this Ordinance. No use will be permitted which adversely affects the capacity of drainage facilities or systems. Developments located within the flood fringe shall meet the requirements of this Section, along with the requirements of Section 1000.0, 701.0 Development Permit. 701.1 No person, firm, corporation, or governmental body not exempted by law shall commence any development in the SFHA. without first obtaining a development permit from the Community Development Director. 701.2 Application for a site development permit shall be made on a form provided by the Community Development Director. 701.2.1 The application shall be accompanied by drawings of the site, drawn to scale, showing property line dimensions and legal description for the property and sealed by a licensed engineer, architect or land surveyor; existing grade elevations, using the North American Vertical Datum of 1988, and all changes in grade resulting from excavation or filling; the location and dimensions of all buildings and additions to buildings. 701.2.2 For all proposed buildings, the elevation of the lowest floor (including basement) and lowest adjacent grade shall be shown on the submitted plans and the development will be subject to the requirements of Section 1000.0 of this Ordinance. 701.3 Upon receipt of a site development permit application, the Community Development Director shall compare the elevation of the site to the base flood or 100 -year frequency flood elevation. 701.3.1 Any development located on land that can be shown to be higher than the base flood elevation of the current Flood Insurance Rate Map and which has not been filled after the date of the site's first Flood Insurance Rate Map without a permit as required by this ordinance is not in the SFHA and, therefore, not subject to the requirements of this Ordinance, Conversely, any development located on land shown to be below the base flood elevation and hydraulically connected, but shown on the current Flood Insurance Rate Map is subject to the provisions of this ordinance. 20 701.3.2 The Community Development Director shall maintain documentation of the existing ground elevation at the development site and certification that this ground elevation existed prior to the date of the site's first Flood Insurance Rate Map identification. 701.4 A soil erosion and sediment control plan for disturbed areas shall be submitted. This plan shall include a description of the sequence of grading activities and the temporary sediment and erosion control measures to be implemented to mitigate their effects. This plan shall also include a description of final stabilization and revegetation measures, and the identification of a responsible party to ensure post - construction maintenance. 701.5 The Community Development Director shall be responsible for obtaining from the applicant copies of all other federal, state, and local permits, approvals or waivers that may be required for this type of activity. The Community Development Director shall not issue a permit unless all other federal, state, and local permits have been obtained. 702.0 Preventing Increased Damages. No development in the flood fringe shall create a threat to public health and safety. 702.1 If fill is being used to elevate the site above the base flood or 100 -year frequency flood elevation, the applicant shall submit sufficient data and obtain a letter of map revision (LOMR) from FEMA for the purpose of removing the site from the floodplain. 702.2 Compensatory Storage. 702.2.1 Whenever any portion of a floodplain is authorized for use, the volume of space which will be occupied by the authorized fill or structure below the base flood or 100 -year frequency flood elevation shall be compensated for and balanced by a hydraulically equivalent volume of excavation taken from below the base flood or 100 -year frequency flood elevation. 702.2.2 The excavation volume shall be at least equal to 1.0 times the volume of storage lost due to the fill or structure 702.2.3 In the case of streams and watercourses, such excavation shall be made opposite or adjacent to the areas so filled or occupied. 21 702.2.4 All floodplain storage lost below the existing 10 -year flood elevation shall be replaced below the proposed 10 -year flood elevation. All floodplain storage lost above the existing 10 -year flood elevation shall be replaced above the proposed 10 -year flood elevation. 702.2.5 All such excavations shall be constructed to drain freely and openly to the watercourse. 703.0 Construction of the Lowest Floor Below The Base Flood Elevation (BFE). A person who has obtained a Letter of Map Revision Based on Fill that removes a site in the flood fringe from the floodplain due to the use of fill to elevate the site above the BFE, may apply for a permit from the Village to construct the lowest floor of a residential building below the BFE in the flood fringe. The Community Development Director shall not issue such a permit unless the applicant has complied with all the criteria set forth in the following subsection. 703.1 Compensatory storage shall be provided per 702.2. 703.2 The elevation of the lowest opening in the basement wall (i.e., window wells, access ways) shall be at or above the Flood Protection Elevation (FPE). 703.3 The lowest adjacent grade to the foundation shall be at or above the FPE, for a minimum distance of ten (10) feet beyond the outside face of the structure. However, if site conditions are such that this requirement cannot be met, the Community Development Director may waive the ten (10) foot minimum setback if an Illinois Licensed Professional Engineer certify that an alternative method to protect the building from damage due to hydrostatic pressures has been met, The certifications shall be in the form of a detailed soils and structural design analysis, which shall be submitted to the Community Development Director for review. The Community Development Director may require such additional documentation as necessary to prove that the proposed shorter setback distance will keep the structure reasonably safe. In no case shall the setback distance be less than four (4) feet. 22 703.4 The grade around the perimeter of the structure, measured at a distance of twenty (20) feet from the structure, shall be above the BFE. However, if site conditions are such that this requirement cannot be obtained, the Community Development Director may waive the twenty (20) foot minimum setback distance if an Illinois Licensed Professional Engineer certifies that an alternative method to protect the building from damages due to hydrostatic pressures have been met. A detailed soils analysis and structural design proving that a shorter setback distance will keep the structure reasonably safe from flooding, shall be submitted to the Village for review. In no case shall the setback distance be less than four (4) feet. 703.5 The ground around the building shall be compacted fill that meets all requirements of this subsection and is at least five (5) feet thick under the basement floor slab, Nothing in this subsection shall be interpreted to require the removal or replacement of fill that was placed as part of a LOMR -F, if such fill consists of material, including soils of similar classification and degree permeability, such as those classified as CH, CL, SC or ML according to ASTM standard D -2487, Classification of Soils for Engineering Purposes. 703.6 The fill material must be homogeneous and isotropic; that is, the soil must be all of one material, and the engineering priorities must be in the same direction. 703.7 All fill material and compaction shall be designed, certified and inspected by an Illinois Licensed Professional Engineer, as warranted by the site conditions, The basement floor shall be at an elevation that is no more than five (5) below the BFE. 703.9 There shall be a granular drainage layer beneath the floor slab, and minimum of one quarter ('/4) horsepower sump pump with a backup power supply shall be provided to remove seepage flow. The pump shall be rated at four (4) times the estimated seepage rate and shall discharge above the BFE and away from the building in order to prevent flooding of the basement or uplift of the floor under the effect of the seepage pressure. 703.10 The drainage system shall be equipped with a positive means of preventing backflow. 23 70.3.11 All foundation elements shall be designed to withstand hydrostatic pressure in accordance with accepted engineering practices. 703.12 If the applicant is unable to meet all of the requirements set forth in the preceding paragraphs of this subsection, the Community Development Director may allow the construction of a basement below the BFE only if the applicant demonstrates that the proposed fill and structure meet the guidelines and requirements set forth in FEMA Technical Bulletin 10-01 and are reasonably safe from flooding. In order to demonstrate that the proposed structure is reasonably safe from flooding, the applicant shall submit a detailed engineering analysis of the proposed fill and foundation wall. The engineered basement study shall be completed in accordance with the latest edition of FEMA Technical Bulletin 10 -01, with the analysis of the fill being prepared by an Illinois Licensed Professional Engineer. 703.13 In order to provide the required compensatory storage on site, in no case shall the depth of excavation in the front and side yards of the lot exceed eighteen (18) inches, as measured from the previously existing natural grade. The rear yard shall be permitted to have a greater depth of excavation, if necessary. All such excavation shall be constructed to drain freely and openly to the watercourse or storm sewer system, The use of mechanical means to drain the compensatory storage area will not be permitted. 24 Section 800.0 Occupation and Use of Designated Floodways This section applies to proposed development, redevelopment, site modification or building modification within a designated floodway. The designated floodway for rivers or streams with identified floodway shall be as delineated on the countywide Flood Insurance Rate Map of Cook and referenced in Section 300.28, Only those uses and structures will be permitted which meet the criteria in this section. All floodway modifications shall be the minimum necessary to accomplish the purpose of the project The development shall also meet the requirements of Section 1000.0. 801.0 Development Permit. No person, firm, corporation or governmental body not exempted by state law shall commence any development in a floodway without first obtaining a development permit from the Community Development Director and IDNR /OWR. 801.1 Application for a development permit shall be made on a form provided by the Community Development Director. The application shall include the following information: 801.1.1.1 Name and address of applicant; 801.1.1.2 Site location (including legal description) of the property, drawn to scale, on the designated floodway map, indicating whether it is proposed to be in an incorporated or unincorporated area; 801.1.1.3 Name of stream or body of water affected; 801.1.1.4 Description of proposed activity; 801.1.1.5 Statement of purpose of proposed activity; 801.1.16 Anticipated dates of initiation and completion of activity; 801.1.1.7 Name and mailing address of the owner of the subject property if different from the applicant; 801.1.1.8 Signature of the applicant or the applicant's agent; 801.1.1.9 If the applicant is a corporation, the president or other authorized officer shall sign the application form; 25 801.1.1.10 If the applicant is a partnership, each partner shall sign the application form; and 801.1.1.11 If the applicant is a land trust, the trust officer shall sign the name of the trustee by him (her) as trust officer. A disclosure affidavit shall be filed with the application, identifying each beneficiary of the trust by name and address and defining the respective interests therein. 801.1.1.12 Plans of the proposed activity shall be provided which include as a minimum: 801.1.1.12.1 A vicinity map showing the site of the activity, name of the waterway, boundary lines, names of roads in the vicinity of the site, graphic or numerical scale, and north arrow; 801 1.1.12.2 A plan view of the project and engineering study reach showing existing and proposed conditions including principal dimensions of the structure or work, elevations, using the North American Vertical Datum of 1988, adjacent property lines and ownership, drainage and flood control easements, location of any channels and any existing or future access roads, distance between proposed activity and navigation channel (when the proposed construction is near a commercially navigable body of water), designated floodway limit, floodplain limit, specifications and dimensions of any proposed channel modifications, location and orientation of cross - sections, north arrow, and a graphic or numerical scale; 801.1 1.12.3 Cross - section views of the project and engineering study reach showing existing and proposed conditions including principal dimensions of the work as shown in plan view, existing and proposed elevations, normal water elevation, 10 -year frequency flood elevation, 100 -year frequency flood elevation, and graphic or numerical scales (horizontal and vertical); 801.1.1.12.4 A soil erosion and sediment control plan for disturbed areas, This plan shall include a description of the sequence of grading activities and the temporary sediment and erosion control measures to be implemented to mitigate their effects. This plan shall also include a description of final stabilization and revegetation measures, and the identification of a responsible party to ensure post- construction maintenance. 26 801.1.1.12.5 A copy of the designated floodway map, marked to reflect any proposed change in the designated floodway location. 801.1.1.13 Any and all other federal, state, and local permits or approval letters that may be required for this type of development. 801.1.1.14 Engineering calculations and supporting data shall be submitted showing that the proposed work will meet the permit criteria of Section 802.0. 801.1.1.151f the designated floodway delineation, base flood or 100 -year frequency flood elevation will change due to the proposed project, the application will not be considered complete until IDNR/OWR has indicated conditional approval of the designated floodway map change. No structures may be built until a Letter of Map Revision has been approved by FEMA. 801.1.1.16 The application for a structure shall be accompanied by drawings of the site, drawn to scale showing property line dimensions and existing ground elevations and all changes in grade resulting from any proposed excavation or filling, and floodplain and floodway limits; sealed by a licensed professional engineer, licensed architect or licensed land surveyor; the location and dimensions of all buildings and additions to buildings; and the elevation of the lowest floor (including basement) of all proposed buildings subject to the requirements of Section 1000.0 of this Ordinance. 801.1.1.17 If the proposed project involves a channel modification, the applicant shall submit the following information: 801.1.1.17.1 A discussion of the purpose of and need for the proposed work; 801.1.1.17.2 A discussion of the feasibility of using alternative locations or methods (see 802.3.9) to accomplish the purpose of the proposed work; 801.111.17.3 An analysis of the extent and permanence of the impacts each feasible alternative identified in 802.3.9 of this Section would have on the physical and biological conditions of the body of water affected; and 27 801.1.1.17.4 An analysis of the impacts of the proposed project, considering cumulative effects on the physical and biological conditions of the body of water affected. 801.2 The Community Development Director shall be responsible for obtaining from the applicant copies of all other federal, state, and local permits and approvals that may be required for this type of activity. 801.2.1 The Community Development Director shall not issue the development permit unless all required federal and state permits have been obtained. 801.2.2 A Licensed Professional Engineer, under the employ or contract of the Village shall review and approve applications reviewed under this Section. 802.0 Preventing Increased Damages and a List of Appropriate Uses. 802.1 The only development in a floodway which will be allowed are Appropriate Uses, which will not cause a rise in the base flood elevation, and which will not create a damaging or potentially damaging increase in flood heights or velocity or be a threat to public health and safety and welfare or impair the natural hydrologic and hydraulic functions of the floodway or channel, or permanently impair existing water quality or aquatic habitat, Construction impacts shall be minimized by appropriate mitigation methods as called for in this Ordinance. Only those Appropriate Uses listed in 17 III. Adm. Code Part 3708 will be allowed. The approved Appropriate Uses are as follows: 802.1.1 Flood control structures, dikes, dams and other public works or private improvements relating to the control of drainage, flooding, erosion, or. water quality or habitat for fish and wildlife. 802.1.2 Structures or facilities relating to the use of, or requiring access to, the water or shoreline, such as pumping and treatment facilities, and facilities and improvements related to recreational boating, commercial shipping and other functionally water dependent uses. 802.1.3 Storm and sanitary sewer relief outfalls. 802.1.4 Underground and overhead utilities. 28 r, 802.1.5 Recreational facilities such as playing fields and trail systems, including any related fencing (at least 50 percent open when viewed from any one direction) built parallel to the direction of flood flows, and including open air pavilions and toilet facilities (4 stall maximum) that will not block flood flows nor reduce floodway storage. 802.1.6 Detached garages, storage sheds, or other non - habitable accessory structures that will not block flood flows nor reduce floodway storage. 802.1.7 Bridges, culverts, roadways, sidewalks, railways, runways and taxiways and any modification thereto. 802.1.8 Parking lots built at or below existing grade where either: 802.1.8.1 The depth of flooding at the 100 -year frequency flood event will not exceed 1,0 foot; or 802.1.8.2 The applicant of a short-term recreational use facility parking lot formally agrees to restrict access during overbank flooding events and accepts liability for all damage caused by vehicular access during all overbank flooding events. 802.1.9 Designated floodway regarding, without fill, to create a positive non - erosive slop toward a watercourse. 802.1.10 Floodproofing activities to protect previously existing lawful structures including the construction of water tight window wells, elevating structures, or construction of floodwalls around residential, commercial or industrial principal structures where the outside toe of the floodwall shall be no more than ten (10) feet away from the exterior wall of the existing structure, and, which are not considered substantial improvements to the structure. 802.1.11 The replacement, reconstruction, or repair of a damaged building, provided that the outside dimensions are not increased, and if the building was damaged to fifty (50 %) percent or more of the market value before the damage occurred, the building will be protected from flooding to the flood protection elevation. 802.1.12 Modifications to an existing building that would not increase the enclosed floor area of the building below the 100 -year frequency flood elevation, and which will not block flood flows including but not limited to, fireplaces, bay windows, decks, patios, and second story additions. If the building is improved to fifty (50 %) percent or more of the market value before the modification occurred (i.e., a substantial improvement), the building will be protected from flooding to the flood protection elevation. 29 802.2 Appropriate uses do not include the construction or placement of any new structures, fill, building additions, buildings on stilts, excavation or channel modifications done to accommodate otherwise non - appropriate uses in the floodway, fencing (including landscaping or planting designed to act as a fence) and storage of materials except as specifically defined above as an Appropriate Use. 802.3 Within the designated floodway , the construction of an Appropriate Use, will be considered permissible provided that the proposed project meets the following engineering and mitigation criteria and is so stated in writing with supporting plans, calculations and data by a licensed professional engineer and provided that any structure meets the protection requirements of Section 1000.0 of this Ordinance: 802.3.1 Preservation of Flood Conveyance, so as Not to Increase Flood Stages Upstream. For appropriate uses other than bridge or culvert crossings, on- stream structures or dams, all effective designated floodway conveyance lost due to the project will be replaced for all flood events up to and including the 100 -year frequency flood. In calculating effective designated floodway conveyance, the following factors shall be taken into consideration: 802.3.1.1 Designated floodway conveyance, "K" (1.486 /n)(AR) where "n" is Manning's roughness factor, "A" is the effective flow area of the cross - section, and "R" is the ratio of the area to the wetted perimeter. (See Ven Te Chow, Open Channel Hydraulics, (McGraw -Hill, New York 1959)). 802.3.1.2 The same Manning's "n" value shall be used for both existing and proposed conditions unless a recorded maintenance agreement with a federal, state, or local unit of government can assure the proposed conditions will be maintained or the land cover is changing from a vegetative to a non - vegetative land cover. 802.3.1.3 Transition sections shall be provided and used in calculations of effective designated floodway conveyance. The following expansion and contraction ratios shall be used unless an applicant's engineer can prove to IDNR/OWR through engineering calculations or model tests that more abrupt transitions may be used with the same efficiency: 802.3.1.3.1 When water is flowing from a narrow section to a wider section, the water should be assumed to expand no faster than at a rate of one foot horizontal for every four feet of the flooded stream's length. 802.3.1.3.2 When water is flowing from a wide section to a narrow section, the water should be assumed to contract no faster than at a rate of one foot horizontal for every one foot of the flooded stream's length. 30 802.3.1.3.3 When expanding or contracting flows in a vertical direction, a minimum of one foot vertical transition for every ten feet of stream length shall be used. 802.3.1.3.4 Transition sections shall be provided between cross - sections with rapid expansions and contractions and when meeting the designated floodway delineation on adjacent properties. 802.3.1.3.5 All cross - sections used in the calculations shall be located perpendicular to flood flows. 802.3.2 Preservation of Floodway Storage so as Not to Increase Downstream Flooding. 802.3.2.1 Compensatory storage shall be provided for any designated floodway storage lost due to the proposed work from the volume of fill or structures placed and the impact of any related flood control projects. 802.3.2.2 Compensatory storage for fill or structures shall be equal to at least the volume of floodplain storage lost. 802.3.2.3 Artificially created storage lost due to a reduction in head loss behind a bridge shall not be required to be replaced. 802.3.2.4 The compensatory designated floodway storage shall be placed between the proposed normal water elevation and the proposed 100 -year flood elevation. All designated floodway storage lost below the existing 10 -year flood elevation shall be replaced below the proposed 10 -year flood elevation. All designated floodway storage lost above the existing 10 -year flood elevation shall be replaced above the proposed 10 -year flood elevation. All such excavations shall be constructed to drain freely and openly to the watercourse. 8023.2.5 If the compensatory storage will not be placed at the location of the proposed construction, the applicant's engineer shall demonstrate through a determination of flood discharges and water surface elevations that the compensatory storage is hydraulically equivalent. 802.3.2.6 There shall be no reduction in floodway surface area as a result of a floodway modification, unless such modification is necessary to reduce flooding at existing structure. 802.3.3 Preservation of Floodway Velocities so as Not to Increase Stream Erosion or Flood Heights. 31 802.3.3.1 For all Appropriate Uses, except bridges or culverts or on- stream structures, the proposed work will not result in an increase in the average channel or designated floodway velocities or stage for all flood events up to and including the 100 -year frequency event. 80.3.3.2 In the case of bridges or culverts or on- stream structures built for the purpose of backing up water in the stream during normal or flood flows, velocities may be increased at the structure site if scour, erosion and sedimentation will be avoided by the use of rip - rap or other design measures. 802.3.4 Construction of New Bridges or Culvert Crossings and Roadway Approaches, 802.3.4.1 The proposed structure shall not result in an increase of upstream flood stages greater than 0.1 foot when compared to the existing conditions for all flood events up to and including the 100 -year frequency event; or the upstream flood stage increases will be contained within the channel banks (or within existing vertical extensions of the channel banks) such as within the design protection grade of existing levees or flood walls or within recorded flood easements. 802.1.4.2 If the proposed construction will increase upstream flood stages greater than 0.1 feet, the developer must contact IDNR/OWR to obtain a permit for a dam or waiver. 802.3.4.2.1 The engineering analysis of upstream flood stages must be calculated using the flood study flows, and corresponding flood elevations for tailwater conditions for the flood study specified in Section 600.0 of this Ordinance. Bridges and Culverts must be analyzed using any commonly accepted FEMA approved hydraulic models. 802.3.4.2.2 Lost floodway storage must be compensated for per Section 802.3.2. 802.3.4.2.3 Velocity increases must be mitigated per Section 802.3.3. 802.3.4.2.4 If the crossing is proposed over a public water that is used for recreational or commercial navigation, an IDNR/OWR permit must be received. 802.3.4.2.5 The hydraulic analysis for the backwater caused by the bridge showing the existing condition and proposed regulatory profile must be submitted to IDNR/OWR for concurrence that a CLOMR is not 32 required by Section 802.0. 802.3.4.2.6 All excavations for the construction of the crossing shall be designed per Section 802.3.8. 802.3.5 Reconstruction or Modification of Existing Bridges, Culverts, and Approach Roads. 802.3.5.1 The bridge or culvert and roadway approach reconstruction or modification shall be constructed with no more than 0.1 foot increase in backwater over the existing flood profile far all flood frequencies up to and including the 100 -year event, if the existing structure is not a source of flood damage. 802.3.5.2 If the existing bridge or culvert and roadway approach is a source of flood damage to buildings or structures in the upstream floodplain, the applicant's engineer shall evaluate the feasibility of redesigning the structure to reduce the existing backwater, taking into consideration the effects on flood stages on upstream and downstream properties. 802.3.5.3 The determination as to whether or not the existing crossing is a source of flood damage and should be redesigned must be prepared in accordance with 17 ILL. Adm. Code Part 3708 (Floodway Construction in Northeastern Illinois) and submitted to IDNR /OWR for review and concurrence before a permit is issued. 802.3.6 On- Stream Structures Built for the Purpose of Backing Up Water. 802.3.6.1 Any increase in upstream flood stages greater than 0.0 foot when compared to the existing conditions, for all flood events up to and including the 100 -year frequency event shall be contained within the channel banks (or within existing vertical extensions of the channel banks) such as within the design protection grade of existing levees or flood walls or within recorded flood easements. 802.3.6.2 A permit or letter indicating a permit is not required must be obtained from IDNR/OWR for any structure built for the purpose of backing up water in the stream during normal or flood flow. 8023.6.3 All dams and impoundment structures as defined in Section 300.6 shall meet the permitting requirements of 17 ILL. Adm. Code Part 3702 (Construction and Maintenance of Dams). If the proposed activity involves a modification of the channel or floodway to accommodate an impoundment, it shall be demonstrated that: 802.3.6.3.1 The impoundment is determined to be in the public interest by providing flood control, public recreation, or regional stormwater detention; 33 802.3.6.3.2 The impoundment will not prevent the migration of indigenous fish species, which require access to upstream areas as part of their life cycle, such as for spawning; 802.3.6.3.3 The impoundment will not cause or contribute to degraded water quality or habitat conditions. Impoundment design should include gradual bank slopes, appropriate bank stabilization measures and a pre - sedimentation basin; 802.3.6.3.4 A non -point source control plan has been implemented in the upstream watershed to control the effects of sediment runoff as well as minimize the input of nutrients, oil and grease, metals, and other pollutants. If there is more than one municipality in the upstream watershed, the municipality in which the impoundment is constructed should coordinate with upstream municipalities to ensure comprehensive watershed control; 802.3.6.3.5 The project otherwise complies with the requirements of Section 800.0. 802.3.7 Flood Proofing of Existing Habitable, Residential and Commercial Structures. 802.3.7.1 If construction is required beyond the outside dimensions of the existing building, the outside perimeter of the floodproofing construction shall be placed no further than 10 feet from the outside of the building. 802.3.7.2 Compensation of lost storage and conveyance will not be required for floodproofing activities. 802.3.8 Excavation in the Floodway. 802.3.8.1 When excavation is proposed in the design of bridges and culvert openings, including the modifications to and replacement of existing bridge and culvert structures, or to compensate for lost conveyance or other Appropriate Uses, transition sections shall be provided for the excavation. 802.3.8.2 The following expansion and contraction ratios shall be used unless an applicant's engineer can prove to IDNR/OWR through engineering calculations or model tests that more abrupt transitions may be used with the same efficiency: 34 802.3.8.2.1 When water is flowing from a narrow section to a wider section, the water should be assumed to expand no faster than at a rate of one foot horizontal for every four feet of the flooded stream's length; and 802.3.8.2.2 When water is flowing from a wide section to a narrow section, the water should be assumed to contract no faster than at a rate of one foot horizontal for every one foot of the flooded stream's length; and 802.3.8.2.3 When expanding or contracting flows in a vertical direction, a minimum of one foot vertical transition for every ten feet of stream length shall be used; and 802.3.8.2.4 Erosion /scour protection shall be provided inland upstream and downstream of the transition sections. 802.3.9 If the proposed activity involves a channel modification, it shall be demonstrated that: 802.3.9.1 There are no practicable alternatives to the activity which would accomplish its purpose with less impact to the natural conditions of the body of water affected, Possible alternatives include levees, bank stabilization, flood proofing of existing structures, removal of structures from the floodplain, clearing the channel, high flow channel, or the establishment of a stream side buffer strip or green belt Channel modification is acceptable if the purpose is to restore natural conditions and improve water quality and fish and wildlife habitat; 802.3.9.2 Water quality, habitat, and other natural functions would be significantly improved by the modification and no significant habitat area may be destroyed, or the impacts are offset by the replacement of an equivalent degree of natural resource values; 802.3.9.3 The activity has been planned and designed and will be constructed in a way which will minimize its adverse impacts on the natural conditions of the body of water affected, consistent with the following criteria: 802.3.9.3.1 The physical characteristics of the modified channel shall match as closely as possible those of the existing channel in length, cross - section, slope and sinuosity. If the existing channel has been previously modified, restoration of more natural physical conditions should be incorporated into 35 channel modification design, where practical. 802.3.9.3.2 Hydraulically effective transitions shall be provided at both the upstream and downstream ends of the project, designed such that they will prevent erosion. 802.3.9.3.3 One -sided construction of a channel shall be used when feasible. Removal of streamside (riparian) vegetation should be limited to one side of the channel, where possible, to preserve the shading and stabilization effects of the vegetation. 802.3.9.3.4 Clearing of stabilizing vegetation shall be limited to that which is essential for construction of the channel. 802.3.9.3.5 Channel banks shall be constructed with a side slope no steeper than 3:1 horizontal to vertical, wherever practicable. Native vegetation and gradual side slopes are the preferred methods for bank stabilization. Where high velocities or sharp bends necessitate the use of alternative stabilization measures, soil bioengineering techniques, natural rock or rip -rap are preferred approaches. Artificial materials such as concrete, gabions, or construction rubble should be avoided unless there are no practicable alternatives. 802.3.9.3.6 All disturbed areas associated with the modification shall be seeded or otherwise stabilized as soon as possible upon completion of construction. Erosion blanket or an equivalent material shall be required to stabilize disturbed channel banks prior to establishment of the vegetative cover. 802.3.9.3.7 If the existing channel contains considerable bottom diversity such as deep pools, riffles, and other similar features, such features shall be provided in the new channel. Spawning and nesting areas and flow characteristics compatible with fish habitat shall also be established, where appropriate. 802.3.9.3.8 A sediment basin shall be installed at the downstream end of the modification to reduce sedimentation and degradation of down - stream water quality. 36 802.3.9.3.9 New or relocated channels should be built in the dry and all items of construction, including vegetation, should be completed prior to diversion of water into the new channel. 802.3.9.3.10 There shall be no increases in stage or velocity as the channel enters or leaves the project site for any frequency flood unless necessitated by a public flood control project or unless such an increase is justified as part of a habitat improvement or erosion control project. 802.3.9.3.11 Unless the modification is for a public flood control project, there shall be no reduction in the volume of floodwater storage outside the floodway as a result of the modification; and 802.3.9.4 The project otherwise complies with the requirements of Section 800.0. 802.3.10 Seeding and Stabilization Plan. For all activities located in a floodway, a seeding and stabilization plan shall be submitted by the applicant. 802.3.11 Soil Erosion and Sedimentation Measures For all activities in the floodway, including grading, filling, and excavation, in which there is potential for erosion of exposed soil, soil erosion and sedimentation control measures shall be employed consistent with the following criteria: 802.3.11.1 The construction area shall be minimized to preserve the maximum vegetation possible. Construction shall be scheduled to minimize the time soil is exposed and unprotected. In no case shall the existing natural vegetation be destroyed, removed, or disturbed more than 15 clays prior to the initiation of improvements. 802.3.11.2 Temporary and/or permanent soil stabilization shall be applied to denuded areas as soon as possible. As a minimum, soil stabilization shall be provided within 15 days after final grade is reached on any portion of the site, and within 15 days to denuded areas which may not be at final grade but will remain undisturbed for longer than 60 days. 802.3.11.3 Sedimentation control measures shall be installed before any significant grading or filling is initiated on the site to prevent the movement of eroded sediments off site or into the channel, Potential sediment control devices include filter fences, straw bale fences, check dams, diversion ditches, and sediment traps and 37 basins. 802.3.11.4 A vegetated buffer strip of at least 25 feet in width shall be preserved and /or re- established, where possible, along existing channels (See 802.3.16). Construction vehicle use of channels shall be minimized. Temporary stream crossings shall be constructed, where necessary, to minimize erosion. Necessary construction in or along channels shall be restabilized immediately. 802.3.11.5 Soil erosion and sedimentation control measures shall be designed and implemented consistent with "Procedures and Standards for Urban Soil Erosion and Sedimentation Control in Illinois" (1988) also known as the "Green Book" and "The Illinois Urban Manual" (NRCS, 199.5). 802.3.12 Public Flood Control Projects. For public flood control projects, the permitting requirements of this section will be considered met if the applicant can demonstrate to IDNR/OWR through hydraulic and hydrologic calculations that the proposed project will not singularly or cumulatively result in increased flood heights outside the project right -of -way or easements for all flood events up to and including the 100 -year frequency event. 802.3.13 General Criteria for Analysis of Flood Elevations. 802.3.13.1 The flood profiles, flows and floodway data in the designated floodway study, referenced in Section 600.0, must be used for analysis of the base conditions, If the study data appears to be in error or conditions have changed, IDNR/OWR shall be contacted for approval and concurrence on the appropriate base conditions data to use. 802.3.13.2 If the 100 -year designated floodway elevation at the site of the proposed construction is affected by backwater from a down- stream receiving stream with a larger drainage area, the proposed construction shall be shown to meet: 802.3.13.2.1 The requirements of this section for the 100 -year frequency flood elevations of the designated floodway conditions; and 802.3.13.2.2 Conditions with the receiving stream at normal water elevations. 8023 13.3 If the applicant learns from IDNR/OWR, local governments, or a private owner that a downstream restrictive bridge or culvert is scheduled to be removed, reconstructed, modified, or a regional flood control project is scheduled to be built, removed, constructed or modified within the next five years, the proposed construction 38 shall be analyzed and shown to meet the requirements of this section for both the existing conditions and the expected flood profile conditions when the bridge, culvert or flood control project is built. 802.3.14 Conditional Letter of Map Revision. 802.114.1 If the Appropriate Use would result in a change in the designated floodway location or the 100 -year frequency flood elevation, the applicant shall submit to IDNR/OWR and FEMA all information, calculations and documents necessary to be issued a conditional designated floodway map revision and receive from IDNR/OWR a conditional concurrence of the designated floodway change before a permit is issued. 8023,14.2 The final designated floodway map will not be changed by FEMA until as -built plans or record drawings of initial filling, grading, dredging, or excavating activities are submitted and accepted by FEMA and IDNR/OWR. 802.3.14.3 In the case of non - government projects, the municipality in incorporated areas and the county in unincorporated areas shall concur with the proposed conditional designated floodway map revision before IDNR/OWR approval can be given. 802.3.14.4 No filling, grading, dredging or excavating shall take place until a conditional approval is issued. 802.3.14.5 After initial filling, grading, dredging or excavating, no activities shall take place until a final Letter of Map Revision (LOMR) is issued by FEMA with concurrence from IDNR/OWR. 802.3.15 Professional Engineer's Supervision. All engineering analyses shall be performed by or under the supervision of a licensed professional engineer. 802.3.16 For all activities in the floodway involving construction within 25 feet of the channel, the following criteria shall be met: 801.316.1 A natural vegetation buffer strip shall be preserved within at least 25 feet of the ordinary high water mark of the channel. 802.3.16.2 Where it is impossible to protect this buffer strip during the construction of an Appropriate Use, a vegetated buffer strip shall be established upon completion of construction. 39 802.3.17 After receipt of conditional approval of the designated floodway change and issuance of a permit and a Conditional Letter of Map Revision, construction as necessary to change the floodway designation may proceed but no buildings or structures or other construction that is not an Appropriate Use may be placed in that area until the designated floodway map is changed and a final Letter of Map Revision is received. The designated floodway map will be revised upon acceptance and concurrence by IDNR/OWR and FEMA of the "as- built" plans, 802.4 Development Activities In Delegated Communities Requiring State Review. For those projects listed below located in a designated floodway, the following criteria shall be submitted to IDNR/OWR for their review and concurrence and /or permit prior to the issuance of a permit by a community or county delegated state permitting authority in the floodway. 802.4.1 An engineer's analysis of the flood profile due to a proposed bridge pursuant to Section 802.3.4. 802.4.2 An engineer's determination that an existing bridge or culvert crossing is not a source of flood damage and the analysis indicating the proposed flood profile, pursuant to Section 802.3.5. 802.4.3 Alternative transition sections and hydraulically equivalent storage pursuant to Section 802.3(.1,.2,.8). 802.4.4 The construction of any IDNR/OWR projects, dams (as defined in Section 300.16) and all other federal, state, or local units of government projects, including projects of the municipality or county. 802.4.5 An engineer's determination that a proposed bridge affected by backwater from a downstream receiving stream may be built with a smaller opening. 802 4.6 Projects which revise or establish the floodway and/or flood profiles. 802.4.7 Projects in public bodies of water. 802.5 Other Permits. 802.5.1 In addition to the other requirements of this Ordinance, a development permit for a site located in a floodway shall not be issued unless the applicant first obtains a permit or written documentation that a permit is not required from IDNR/OWR, issued pursuant to 615 ILCS 5/5 et seq. 802.5.2 No correspondence from IDNR/OWR shall be required if the project meets the requirements of Regional Permit 3. 802.5.3 No permit from IDNR/OWR shall be required if IDNR/OWR has delegated this responsibility to the Village. 40 802.6 Permits for Dams. 802.6.1 Any work involving the construction, modification or removal of a dam as defined in Section 300.16 per 17 ILL. Adm. Code Part 3702 (Rules for Construction of Dams) shall obtain an IDNR/OWR permit prior to the start of construction of a dam. 802.6.2 1f the Community Development Director finds a dam that does not have an IDNR/OWR permit, the Community Development Director shall immediately notify the IDNR/OWR Bartlett office. 802.6.3 If Community Development Director finds a dam which is believed to be in unsafe condition, the Community Development Director shall immediately notify the owner of the dam, the IDNR/OWR Bartlett office, and the Illinois Emergency Management Agency (FEMA). 802.7 Activities That Do Not Require a Licensed Professional Engineers Review. The following activities may be permitted without a licensed professional engineers review. Such activities shall still meet the other requirements of this Ordinance, including the mitigation requirements. 802.7.1 Regional Permit 3 which authorizes, for example, underground and overhead utilities, storm and sanitary sewer outfalls, sidewalks, patios, athletic fields, playground equipment and streambank protection activities. Section 900.0 Occupation and Use of SFHA Areas Where Floodways Are Not Identified. In SFHA or floodplains, (including AE, AH, AO and Unnumbered A Zones) where no floodways have been identified and no base flood or 100 -year frequency flood elevations have been established by FEMA, and draining more than a square mile, no development shall be permitted unless the cumulative effect of the proposals, when combined with all other existing and anticipated uses and structures, shall not significantly impede or increase the flow and passage of the floodwaters nor significantly increase the base flood or 100 -year frequency flood elevation. 901.0 Development Permit. 901.1 No person, firm, corporation, or governmental body, not exempted by state law, shall commence any development in a SFHA or floodplain without first obtaining a development permit from the Community Development Director. 901.2 Application for a development permit shall be made on a form provided by the Community Development Director. 901.2.1 The application shall be accompanied by drawings of the site, drawn to scale showing property line dimensions; and existing grade elevations and all changes in grade resulting from excavation or filling, sealed by a licensed engineer, architect or 41 surveyor; the location and dimensions of all buildings and additions to buildings; and the elevations of the lowest floor (including basement) of all proposed buildings subject to the requirements of Section 1000.0 of this Ordinance. 901.2.2 The application for a development permit shall also include the following information: 901.2.2.1 A detailed description of the proposed activity, its purpose, a and intended use; 901.2.22 Site location (including legal description) of the property, drawn to scale, on the designated floodway maps, indicating whether it is proposed to be in an incorporated or unincorporated area; 901.2.2.3 Anticipated dates of initiation and completion of activity; 901.2.2.4 Plans of the proposed activity shall be provided which include as a minimum: 901.2.2.4.1 A vicinity map showing the site of the activity, name of the waterway, boundary lines, names of roads in the vicinity of the site, graphic or numerical scale, and north arrow; 901.2.2.4.2 A plan view of the project and engineering study reach showing existing and proposed conditions including principal dimensions of the structure or work, elevations, using the North American Vertical Datum of 1988, adjacent property lines and ownership, drainage and flood control easements, distance between proposed activity and navigation channel (when the proposed construction is in or near a commercially navigable body of water), floodplain limit, location and orientation of cross - sections, north arrow, and a graphical or numerical scale; 901.2.2.4.3 Cross - section views of the project perpendicular to the flow of floodwater and engineering study reach showing existing and proposed conditions including principal dimensions of the work as shown in plan view, existing and proposed elevations, normal water elevation, 10- year frequency flood elevation, 100 -year 42 frequency flood elevation, and graphical or numerical scales (horizontal and vertical); and 901.2.2.4.4 A soil erosion and sedimentation control plan for disturbed areas. This plan shall include a description of the sequence of grading activities and the temporary sediment and erosion control measures to be implemented to mitigate their effects. This plan shall also include a description of final stabilization and revegetation measures, and the identification of a responsible party to ensure post - construction maintenance. 901.2.3 Engineering calculations and supporting data shall be submitted showing that the proposed work will meet the criteria of Section 902.0. 901.2.4 Any and all other federal, state, and local permits or approvals that may be required for this type of development. 901.3 Based on the best available existing data according to federal, state or other sources, Community Development Director shall compare the elevation of the site to the base flood or 100 -year frequency flood elevation. 901.3.1 Should no elevation information exist for the site, the developer's engineer shall calculate the elevation according to Section 604.0. 901.3.2 Any development located on land that can be shown to have been higher than the base flood elevation of the current Flood Insurance Rate Map Identification is not in the SFHA and, therefore, not subject to the requirements of this Ordinance. 901.3.3 The Community Development Director shall maintain documentation of the existing ground elevation at the development site and certification that this ground elevation existed prior to the date of the site's first Flood Insurance Rate Map identification. 901.3.4 The Community Development Director shall be responsible for obtaining from the applicant copies of all other federal, state, and local permits, approvals or waivers that may be required for this type of activity. The Community Development Director shall not issue the development permit unless all required federal, state, and local permits have been obtained. 43 902.0 Preventing Increased Damages. 902.1 No development in the SFHA where a floodway has not been determined shall create a damaging or potentially damaging increase in flood heights or velocity or threat to public health, safety and welfare or impair the natural hydrologic and hydraulic functions of the floodway or channel, or impair existing water quality or aquatic habitat. Construction impacts shall be minimized by appropriate mitigation methods as called, for in this Ordinance. 902.2 Within all riverine SFHAs where the floodway has not been determined, the following standards shall apply: 902.2.1 The developer shall have a Licensed Professional Engineer state in writing and show through supporting plans, calculations, and data that the project meets the engineering requirements of Section 802.3.1 through 802.3.9 for the entire floodplain as calculated under the provisions of Section 604.0 of this Ordinance. 902.2.1.1 As an alternative, the developer should have an engineering study performed to determine a floodway and submit that engineering study to IDNR/OWR and FEMA for acceptance as a designated floodway. 902.2.1.2 Upon acceptance of the floodway by IDNR/OWR and FEMA, the developer shall then demonstrate that the project meets the requirements of Section 800,0 for the designated floodway. The floodway shall be defined according to the definition in Section 300.17 of this Ordinance. 902.2.2 A development permit shall not be issued unless the applicant first obtains an IDNR/OWR permit or a determination has been made that an IDNR/OWR permit is not required. 902.2.3 Permits for Dams 902.2.3.1 Any work involving the construction, modification or removal of a dam as defined in Section 300.16 per 17 III. Adm. Code Part 3702 (Rules for Construction of Dams) shall obtain an IDNR/OWR permit prior to the start of construction of a dam. 902.2.3.2 If Community Development Director finds a dam that does not have an IDNR/OWR permit, the Community Development Director shall immediately notify the IDNR/OWR Bartlett office. 44 902.2.33 If the Community Development Director finds a dam which is believed to be in unsafe condition, the Community Development Director shall immediately notify the owner of the dam, the IDNR /OWR Bartlett office, and the Illinois Emergency Management Agency (FEMA). 902.3 The following activities may be permitted without a Licensed Professional Engineers review or calculation of base flood elevation and designated floodway. Such activities shall still meet the other requirements of this Ordinance. 902.3.1 Bridge and culvert crossings of streams in rural areas meeting conditions of IDNR/OWR Statewide Permit No. 2; 902.3.2 Barge fleeting facilities meeting conditions of IDNR/OWR Statewide Permit No. 3; 902.3.3 Aerial utility crossings meeting conditions of IDNR/OWR Statewide Permit No. 4; 902.3.4 Minor boat docks meeting conditions of IDNR/OWR Statewide Permit No. 5; 902.3.5 Minor, non - obstructive activities meeting conditions of IDNR/OWR Statewide Permit No. 6; activities (not involving fill or positive change in grade) are covered by this permit; 902.3.6 Ouffall structures and drainage ditch outlets meeting conditions of IDNR/OWR Statewide Permit No. 7; 902.3.7 Underground pipeline and utility crossings meeting the conditions of IDNR /OWR Statewide Permit No. 8; 902.3.8 Bank stabilization projects meeting the conditions of IDNR/OWR Statewide Permit No. 9; 902.3.9 Accessory structures and additions to existing residential buildings meeting the conditions of IDNR/OWR Statewide Permit No. 10; 902.3.10 Minor maintenance dredging activities meeting conditions of IDNR/OWR Statewide Permit No. 11; 902.3.11 Bridge and culvert replacement structures and bridge widenings meeting conditions of IDNR/OWR Statewide Permit No. 12; 902.3.12 Temporary construction activities meeting conditions of IDNR/OWR Statewide Permit No. 13; 45 902.3.13 Special Uses of Public Waters meeting conditions of IDNR/OWR Statewide Permit No. 14; and 902.3.1 Any development determined by IDNR/OWR to be located entirely within a flood fringe area shall be exempt from State Floodway permit requirements. 902.4 The flood carrying capacity of any altered or relocated watercourse shall be maintained. 902.5 Compensatory Storage. 902.5.1 Whenever any portion of a floodplain is authorized for use, the volume of space which will be occupied by the authorized fill or structure below the base flood or 100 -year frequency flood elevation shall be compensated for and balanced by a hydraulically equivalent volume of excavation taken from below the base flood or 100 -year frequency flood elevation. 9025.2 The excavation volume shall be at least equal to the volume of storage lost due to the fill or structure. 902.5.3 1 n the case of streams and watercourses, such excavation shall be made opposite or adjacent to the areas so filled or occupied. 902.5.4 All floodplain storage lost below the existing 10 -year flood elevation shall be replaced below the proposed 10 -year flood elevation. All floodplain storage lost above the existing 10 -year flood elevation shall be replaced above the proposed 10 -year flood elevation. All such excavations shall be constructed to drain freely and openly to the watercourse. 46 Section 1000.0 Permitting Requirements Applicable to All Floodplain Areas. In addition to the requirements found in Sections 700.0, 800.0 and 900.0 for development in flood fringes, designated floodways, and SFHA or floodplains where no floodways have been identified, the following requirements shall be met. 1001.0 Public Health Standards 1401.1 No developments in the SFHA shall include locating or storing chemicals, explosives, buoyant materials, animal wastes, fertilizers, flammable liquids, pollutants, or other hazardous or toxic materials below the flood protection elevation (HE) unless such materials are stored in a floodproofed and anchored storage tank and certified by a professional engineer or floodproofed building constructed according to the requirements of section 1003 of this ordinance. 1001.2 Public utilities and facilities such as sewer, gas and electric shall be located and constructed to minimize or eliminate flood damage. 1001.3 Public sanitary sewer systems and water supply systems shall be located and constructed to minimize or eliminate infiltration of flood waters into the systems and discharges from the systems into flood waters. 1001.4 New and replacement water supply systems, wells, sanitary sewer lines and on -site waste disposal systems may be permitted providing all manholes or other above ground openings located below the FPE are watertight. 1001.5 All other activities defined as development shall be designed so as not to alter flood flows or increase potential flood damages. 1002.0 Carrying Capacity and Notification 1002.1 For all projects involving channel modification, fill, or stream maintenance (including levees), the flood carrying capacity of the watercourse shall be maintained. 1002.2 In addition, the Village shall notify adjacent communities in writing 30 days prior to the issuance of a permit for the alteration or relocation of the watercourse. 1003.0 Protecting Buildings. 1003.1 All buildings located within a 100 -year floodplain, also known as a SFHA, shall be protected from flood damage below the flood protection elevation. This building protection criteria applies to the following situations: 47 1003.1.1 Construction or placement of a new building or alteration or addition to an existing building valued at more than one thousand dollars ($1,000) or seventy (70) square feet. 1003.1.2 Substantial improvements or structural alterations made to an existing building that increase the floor area by more than twenty percent (20 %) or equal or exceed the market value by fifty percent (50 %). Alteration shall be figured cumulatively during the life of the building. If substantially improved, the existing structure and the addition must meet the flood protection standards of this section. 1003.1.3 Repairs made to a substantially damaged building. These repairs shall be figured cumulatively during the life of the building. If substantially damaged the entire structure must meet the flood protection standards of this section. 1003.1.4 Installing a manufactured home on a new site or a new manufactured home on an existing site (the building protection requirements do not apply to returning a manufactured home to the same site it lawfully occupied before it was removed to avoid flood damage). 1003.1.5 Installing a travel trailer or recreational vehicle on a site for more than 180 days per year; and 1003.1.6 Repetitive loss to an existing building as defined in Section 300.56 This building protection requirement may be met by one of the following methods. 1003.2 A residential or non - residential building, when allowed, may be constructed on permanent land fill in accordance with the following: 1003.2.1 The lowest floor (including basement) shall be at or above the flood protection elevation; and 1003.2.2 Fill Requirements: 1003.2.2.1 The fill shall be placed in layers no greater than six (6) inches deep before compaction and should extend at least ten (10) feet beyond the foundation of the building before sloping below the flood protection elevation; and 48 1003.2.2.2 The top of the fill shall be above the flood protection elevation. However, the ten (10) foot minimum may be waived if a structural engineer certifies an alternative method to protect the building from damages due to hydrostatic pressures; and 1003.2.2.3 The fill shall be protected against erosion and scour during flooding by vegetative cover, riprap or other structural measure; and 1003.2.2.4 The fill shall be composed of rock or soil and not incorporate debris or refuse materials; and 1003.2.2.5 The fill shall not adversely affect the flow or surface drainage from or onto neighboring properties, and when necessary, stormwater management techniques such as swales or basins shall be incorporated. 1003.3 A residential or non - residential building may be elevated in accordance with the following: 1003.3.1 The building or improvements shall be elevated on crawl space, stilts, piles, walls, or other foundation that is permanently open to flood waters and not subject to damage by hydrostatic pressures of the base flood or 100 -year frequency flood. Designs must either be certified by a licensed professional engineer or architect or the permanent openings, one on each wall, shall be no more than one foot above existing grade, and consists of a minimum of two openings. The openings must have a total net area of not less than one square inch for every one square foot of enclosed area subject to flooding below the Base Flood Elevation; and 1003.3.3.2 The foundation and supporting members shall be anchored and aligned in relation to flood flows and adjoining structures so as to minimize exposure to known hydrodynamic forces such as current, waves, ice and floating debris; and 1003.3.3.3 All areas below the flood protection elevation shall be constructed of materials resistant to flood damage; and 1003.3.3.3.1 The lowest floor (including basement) and all electrical, heating, ventilating, plumbing, and air conditioning equipment and utility meters shall be located at or above the flood protection elevation; and 49 1003.3.3.3.2 Water and sewer pipes, electrical and telephone lines, submersible pumps, and other waterproofed service facilities may be located below the flood protection elevation provided they are waterproofed; and 1003.3 4 The areas below the flood protection elevation may only be used for the parking of vehicles, building access or storage in an area other than a basement and not later modified or occupied as habitable space; and 1003.3.5 In lieu of the above criteria, the design methods to comply with these requirements may be certified by licensed professional engineer or architect. 1003.3.6 Manufactured homes, and travel trailers to be installed on a site for more than 180 days, shall be elevated to or above the flood protection elevation; and, shall be anchored to resist flotation, collapse, or lateral movement by being tied down in accordance with the Rules and Regulations for the Illinois Mobile Home Tie - Down Act issued pursuant to 77 ILL. Adm. Code Part 870. In addition, all manufactured homes shall meet the following elevation requirements: 1003.3.6.1 In the case of manufactured homes placed or substantially improved (1) outside of a manufactured home park or subdivision, (2) in a new manufactured home park or subdivision, (3) in an expansion to an existing manufactured home park or' subdivision, or (4) in an existing manufactured home park or subdivision on which a manufactured home has incurred substantial damage from a flood, the top of the lowest floor shall be elevated to or above the flood protection elevation. 1003.3.6.2 In the case of manufactured homes placed or substantially improved in an existing manufactured home park or subdivision, the manufactured home shall be elevated so that either the top of the lowest floor is above the base flood elevation or the chassis is at least 36 inches in height above grade and supported by reinforced piers or other foundations of equivalent strength, whichever' is less. 1003.3.7 Recreational vehicles or travel trailers shall be required to meet the elevation and anchoring requirements of Subsection 1003.3(f) above unless: 1003.3.7.1 They are on site for' fewer than 180 consecutive days; and, 50 1003.3.7.3 They are fully licensed, ready for highway use, and used only for recreation, camping, travel or seasonal use rather than as a permanent dwelling. A recreational vehicle is ready for highway use if it is on its wheels or jacking system, is attached to the site only by quick disconnect type utility and service devices, and has no permanently attached additions. 1003.4 Only a non - residential building may be structurally dry floodproofed (in lieu of elevation) provided that: 1003.4.1 A licensed professional engineer or architect shall certify that the building has been structurally dry floodproofed below the flood protection elevation, the structure and attendant utility facilities are watertight and capable of resisting the effects of the base flood or 100 -year frequency flood. 1003.4.2 The building design shall take into account flood velocities, duration, rate of rise, hydrostatic and hydrodynamic forces, the effects of buoyancy, and impacts from debris or ice. 1003.4.3 Floodproofing measures shall be operable without human intervention and without an outside source of electricity (levees, berms, floodwalls and similar works are not considered floodproofing for the purpose of this subsection). 1003.5 A building may be constructed with a crawlspace located below the flood protection elevation provided that the following conditions are met: 1003.5.1 The building must be designed and adequately anchored to resist flotation, collapse, and lateral movement of the structure resulting from hydrodynamic and hydrostatic loads, including the effects of buoyancy; and 1003.5.2 Any enclosed area below the flood protection elevation shall have openings that equalize hydrostatic pressures by allowing for the automatic entry and exit of floodwaters. A minimum of one opening on each wall having a total net area of not less than one square inch per one square foot of enclosed area. The openings shall be no more than one (1) foot above grade; and 1003.5.3 The interior grade of the crawlspace below the flood protection elevation must not be more than 2 feet below the lowest adjacent exterior grade; and 51 1003.5.4 The interior height of the crawlspace measured from the interior grade of the crawl to the top of the foundation wall must not exceed 4 feet at any point; and 1003.5.5 An adequate drainage system must be installed to remove floodwaters from the interior area of the crawlspace within a reasonable period of time after a flood event; and 1003.5.6 Portions of the building below the flood protection elevation must be constructed with materials resistant to flood damage; and 1003.5.7 Utility systems within the crawlspace must be elevated above the flood protection elevation. 1003.6 Construction of new or substantially improved critical facilities shall be located outside the limits of the floodplain. Construction of new critical facilities shall be permissible within the floodplain if no feasible alternative site is available. Critical facilities constructed within the SPINA shall have the lowest floor (including basement) elevated or structurally dry floodproofed to the 500 -year flood frequency elevation or three feet above the level of the 100 -year flood frequency elevation whichever is greater. Floodproofing and sealing measures must be taken to ensure that toxic substances will not be displaced by or released into floodwaters. Access routes elevated to or above the level of the base flood elevation shall be provided to all critical facilities. 1003.7 Tool sheds, detached garages, and other minor accessory structures on an existing single - family platted lot, may be constructed with the lowest floor below the flood protection elevation in accordance with the following: 1003.7.1 The building is not used for human habitation; and 1003.7.2 All areas below the base flood or 100 -year frequency flood elevation shall be constructed with waterproof material. Structures located in a designated floodway shall be constructed and placed on a building site so as not to block the flow of flood waters and shall also meet the Appropriate Use criteria of Section 800.0. In addition, all other requirements of Section 700.0, 800.0 and 900.0 must be met; and 1003.7.3 The structure shall be anchored to prevent flotation; and 1003.7.4 Service facilities such as electrical and heating equipment shall be elevated or floodproofed to the flood protection elevation; and 1003.7.5 The building shall be valued at less than $10,000 and be less than 500 square feet in floor size; and 52 100.3.7.6 The building shall be used only for the storage of vehicles or tools and may not contain other rooms, workshops, greenhouses or similar uses and cannot be modified later into another use; and 1003.7.7 The building shall meet the permanent opening criteria of Section 1003.3.1; and 1003.7.8 All flammable or toxic materials (gasoline, paint, insecticides, fertilizers, etc) shall be stored above the flood protection elevation; and 100.3.7.9 The lowest floor elevation should be documented and the owner advised of the flood insurance implications. 1003.8 Existing buildings located within a designated floodway shall also meet the more restrictive Appropriate Use standards included in Section 800.0. Non- conforming structures located in a designated floodway may remain in use and may only be enlarged, replaced or structurally altered in accordance with Section 802.0. A non - conforming structure damaged by flood, fire, wind or other natural or man -made disaster may be restored unless the damage exceeds fifty percent (50 %) of its market value before it was damaged, in which case it shall conform to this Ordinance. Section 1100.0 Other Development Requirements The Village of Lemont shall take into account flood hazards, to the extent that they are known in all official actions related to land management, use and development. 1101.0 New subdivisions, manufactured home parks, annexation agreements, and Planned Unit Developments {PUDs) within the SFHA shall be reviewed to assure that the proposed developments are consistent with Sections 700.0, 800.0, 900.0 and 1000.0 of this Ordinance and the need to minimize flood damage. Plats or plans for new subdivisions, mobile home parks and Planned Unit Developments (PUDs) shall include a signed statement by a Licensed Professional Engineer that the plat or plans account for changes in the drainage of surface waters in accordance with the Plat Act (7651LCS 205/2). 1102.0 Proposals for new subdivisions, manufactured home parks, travel trailer parks, planned unit developments (PUDs) and additions to manufactured home parks and additions to subdivisions shall include base flood or 100 -year frequency flood elevation data and floodway delineations. 1102.1 Where this information is not available from an existing adopted study, the applicant's engineer shall be responsible for calculating the base flood or 100 - year frequency flood elevation per Section 604.0 and the floodway delineation per the definition in Section 300.17. 53 1103.0 Streets, blocks, lots, parks and other public grounds shall be located and laid out in such a manner as to preserve and utilize natural streams and channels. Wherever possible, the floodplains shall be included within parks or other public grounds. 1104.0 The Village of Lemont Board of Trustees shall not approve any Planned Unit Development (PUD) or plat of subdivision located outside the corporate limits unless such agreement or plat is in accordance with the provisions of this Ordinance. 1105.0 All other activities defined as development shall be designed so as not to alter flood flows or increase potential flood damages. Section 1200.0 Variances 1201.0 No variances shall be granted to any development located in a designated floodway as defined in Section 300.16. 1201.1 Whenever the standards of this Ordinance place undue hardship on a specific development proposal, the applicant may apply to the Village of Lemont Board of Trustees for a variance. 1201.2 The Community Development Director shall review the applicant's request for a variance and shall submit its recommendation to the Village of Lemont Board of Trustees. The Village may attach such conditions to granting of a variance as it deems necessary to further the flood protection intent of this ordinance. 1202.0 No variance shall be granted unless the applicant demonstrates that all of the following conditions are met: 1202.1 The development activity cannot be located outside the SFHA; and 1202.2 An exceptional hardship would result if the variance were not granted; and 1202.3 The relief requested is the minimum necessary; and 1202.4 There will be no additional threat to public health, safety, beneficial stream uses and functions, especially aquatic habitat, or creation of a nuisance; and 1202.5 There will be no additional public expense for flood protection, lost environmental stream uses and functions, rescue or relief operations, policing, or repairs to streambeds and banks, roads, utilities, or other public facilities; and 1202.6 The provisions of Sections 702.0 and 902.0 of this Ordinance shall still be met; and 1202.7 The activity is not in a designated floodway; and 54 1202.8 The applicant's circumstances are unique and do not establish a pattern inconsistent with the intent of the NFIP; and 1202.9 The granting of the variance will not alter the essential character of the area involved including existing stream uses; and 1202.10 All other required state and federal permits or waivers have been obtained 1203.0The Community Development Director shall notify an applicant in writing that a variance from the requirements of Section 1000.0 that would lessen the degree of protection to a building will: 1203.1 Result in increased premium rates for flood insurance up to amounts as high as $25 per $100 of insurance coverage; and 1203.2 Increase the risks to life and property; and 1203.3 Require that the applicant proceed with knowledge of these risks and that the applicant will acknowledge in writing the assumption of the risk and liability. 1204.0 Variances requested in connection with restoration of a historic site or historic structure as defined in 300.35 "Historic Structures ", may be granted using criteria more permissive than the requirements of Sections 1200.2 and 1200.3, subject to the conditions that: 1204.1 The repair or rehabilitation is the minimum necessary to preserve the historic character and design of the structure; and 1204.2 The repair or rehabilitation will not result in the structure being removed as a certified historic structure. Section 1300.0 Disclaimer of Liability 1301.0 The degree of flood protection required by this Ordinance is considered reasonable for regulatory purposes and is based on available information derived from engineering and scientific methods of study. 1302.0 Larger floods may occur or flood heights may be increased by man -made or natural causes. 1303.0 This Ordinance does not imply that development, either inside or outside of the SFHA, will be free from flooding or damage. 1304.0 This Ordinance does not create liability on the part of the Village or any officer or employee thereof for any flood damage that results from reliance on this Ordinance or any administrative decision made lawfully thereunder. 55 Section 1400.0 Penalty 1401.0 If such owner fails after ten days notice to correct the violation: Z 1401.1 The Village may make application to the Circuit Court for an injunction requiring conformance with this Ordinance or make such other order as the Court. 1401.2 Any person who violates this Ordinance shall, upon conviction thereof, be fined not less than fifty dollars ($50,00) or more than one - thousand dollars ($1,000.00) for each offense. 1401.3 A separate offense shall be deemed committed upon each day during or on which a violation occurs or continues. 1401.4 The Village shall record a notice of violation on the title to the property. 1402.0 The Community Development Director shall inform the owner that any such violation is considered a willful act to increase flood damages and, therefore, may cause coverage by a Standard Flood Insurance Policy to be suspended. 1402.1 The Community Development Director is authorized to issue an order requiring the suspension of the subject development. The stop -work order shall be in writing, shall indicate the reason for the issuance, and shall order the action, if necessary, to resolve the circumstances requiring the stop -work order. The stop -work order constitutes a suspension of the permit. 1402.2 No site development permit shall be permanently suspended or revoked until a hearing is held by the Village of Lemont Board of Trustees. Written notice of such hearing shall be served on the permittee and shall state: (1) the grounds for compliant or reasons for suspension or revocation; and (2) the time and place of the hearing. At such hearing, the permittee shall be given an opportunity to present evidence on his/her behalf. At the conclusion of the heating, the Village of Lemont Board of Trustees shall determine whether the permit shall be suspended or revoked. 1403.0 Nothing herein shall prevent the Village from taking such other lawful action to prevent or remedy any violations. All costs connected therewith shall accrue to the person or persons responsible. Section 1500.0 Abrogation and Greater Restrictions 1501.0 This Ordinance is not intended to repeal, abrogate or impair any existing easements, covenants, or deed restrictions. 1502.0 Where this Ordinance and other ordinance, easements, covenants, or deed restrictions conflict or overlap, whichever imposes the more stringent restrictions shall prevail. 56 • 1503.0 This Ordinance is intended to repeal the original ordinance or resolution which was adopted to meet the National Flood Insurance Program regulations, but is not intended to repeal the resolution which the Village passed in order to establish initial eligibility for the program. Section 1600.0 Severability. The provisions and sections of this Ordinance shall be deemed separable and the invalidity of any portion of this Ordinance shall not affect the validity of the remainder. Section 1700.0 Effective Date This Ordinance shall be in full force and effect from and after its passage and approval and publication, as required by law. Passed by the President and Board of Trustees of the Village of Lemont Illinois, this 13 ict day of June, 2008. Charlene M. Smollen, lerk Approved by me this 25 ra day of June, 2008. Attested and filed in my office this day of June, 2008. r mol en, Clerk 57 1 • APPENDIX B PRELIMINARY PLAN/ PLAT APPLICATION REQUIREMENTS This Appendix B includes the application requirements for: (1) preliminary plats required for land use approvals other than a planned unit development (PUD); and (2) PUD preliminary plan/plats. A. SUBMISSION OF APPLICATIONS 1. Application Completeness. Applications shall be submitted in person; applicants shall schedule a meeting with Community Development Department staff for the submission of an application. At this meeting staff will review the application for completeness. If the application is complete, a date for the public hearing, if required, will be determined and the public notification responsibilities of the applicant will be reviewed. Incomplete applications will not be accepted, and all documents will be returned to the applicant. 2. Manner of Submission. A complete application shall be deemed one that includes all of the required documents as listed in Paragraph B of this appendix and one that is submitted in the proper format. Applications shall in the form of a packet containing the required documents. All packets shall be: a. Collated, and bound; b. Contain a table of contents; c. Contain all documents listed in the checklist below, with all maps and documents shall be folded; d. Be tabbed and labeled with exhibit numbers. The order of required documents in Paragraph B below is the suggested and preferred order for the exhibits. B. REQUIRED DOCUMENTS The following documents are required for Preliminary Plat applications and PUD Preliminary Plan/Plat applications: 1. Application Form. One original copy of the completed application form, signed by the applicant, and notarized. 2. Application Fee. An application fee shall be paid at the time of application. Applications without payment of the fee shall be considered incomplete. See the current fee schedule (Appendix A) for the required fee. 3. Escrow Money. At the time of application, the applicant shall submit another check for the establishment of an escrow account. The escrow money shall be used to defray costs of public notice, consultants, or other direct costs associated with the application incurred by the Village. Additionally, should the applicant fail to remove the public notice sign in a timely manner, the escrow may be used to defray the costs of the sign's removal. See Appendix A for the minimum required escrow amounts. 4. Proof of Ownership. Proof of ownership of the subject property shall be provided. One copy of a deed that documents the current ownership of the subject property is required. If the applicant is the owner, this is the only documentation necessary. If the applicant is not the owner, the following are required in addition to a copy of the deed: a. If the applicant is the contract purchaser of the property, a copy of the contract must be attached. b. If the applicant is acting n behalf of the beneficiary of a trust, a notarized letter from an authorized trust officer identifying the applicant as an authorized individual acting in behalf of the beneficiaries must be attached. The letter must also provide the name, address, and percentage of interest of each beneficiary. c. If the applicant is acting on behalf of the owner, a notarized letter of consent from the owner must be attached. d. If the property owner is a company, a disclosure of the principals of the company must be included in the application materials. For example, an LLC may submit a copy of the LLC management agreement. 5. Title Search. Current Title Search, Title Commitment, or Title Policy for all subject properties shall be submitted. 6. Project Summary. For PUD applications only, applicants shall provide a written overview of the proposed project. This statement should include how the proposal responds to comments received at the Technical Review Committee meeting, if applicable. Additionally, provide a quantitative summary that includes, as applicable, the following: a. Acreage and/or square footage of subject site; and b. Square footage of commercial space; and c. Proposed residential density (dwelling units / gross site area); and d. Total square footage covered by structures; and e. Total square footage covered by roads and other impervious surfaces; and f. Total square footage of commonly owned and maintained open space; and g. Number of off - street parking spaces 7. Restrictions and Covenants (if applicable). A draft of any proposed protective restrictions and covenants or existing restrictions and covenants shall be provided, as applicable. 8. Declaration of Easements. A statement on easements that will be required for public improvements (e.g. water service), and whether easements have been obtained shall be provided. 9. Traffic Study. For PUD applications only, applicants shall provide a traffic impact study prepared by a qualified traffic analyst shall be submitted. The traffic study shall indicate the volume of traffic to be generated by the PUD or a phase of it and also indicate any special engineering or design features and/or traffic regulation devices needed to ensure the proper safety of traffic circulation to, through, and around the PUD. The requirement for a traffic impact study may be waived by the Community Development Director when he /she determines that the nature and scope of the development will be unlikely to have significant traffic impacts on the surrounding area. This waiver shall be obtained in writing, prior to submission of the submittal packet, and the written waiver approval shall be included as an exhibit in lieu of the traffic study. Note that this waiver does not preclude Village staff, the Planning & Zoning Commission, or the Village Board from requesting a study once the PUD review is underway. 10. Market Research Study. If a PUD including a shopping center is planned, adequate evidence to establish the need for and feasibility of such development shall be provided. The evidence shall be in the form of a market research report. The requirement for a market research study may be waived by the Community Development Director when he /she determines that the nature and scope of the development will be unlikely to have significant impacts on the surrounding area or Village. This waiver shall be obtained in writing, prior to submission of the submittal packet, and the written waiver approval shall be included as an exhibit in lieu of the traffic study. Note that this waiver does not preclude Village staff, the Planning & Zoning Commission, or the Village Board from requesting a study once the PUD review is underway. 11. Economic Impact Study. For PUD applications only, the applicant shall submit a tax impact study detailing the impact which the PUD will have upon taxing bodies and the expected number of students that will be generated by any residential portion of the development. The requirement for an economic impact study may be waived by the Community Development Director when he /she determines that the nature and scope of the development will be unlikely to have significant economic impacts on the surrounding area or Village. This waiver shall be obtained in writing, prior to submission of the submittal packet, and the written waiver approval shall be included as an exhibit in lieu of the traffic study. Note that this waiver does not preclude Village staff, the Planning & Zoning Commission, or the Village Board from requesting a study once the PUD review is underway. 12. Plat of Survey /Existing Conditions Map. Applicant shall submit a preliminary plat of survey/Existing Conditions Map drawn at a scale of 1 inch equals 100 ft. or greater, that indicates the location of the subject site and the territory within 200 ft. of the subject property and includes the following: a. Corporate and county boundaries b. Current roads or public rights of way c. Addresses and/or PINs of immediately adjacent properties and names, as they appear on most current tax records of the county, of the property owners d. Existing buildings on site and within 200 ft. of the site e. Existing topography of site shown at intervals no greater than two feet f. Wetland areas g. Portions of the site in any floodway and/or floodplain fringe area h. Streams, drainage ditches, culverts, and standing water i. Soil problem areas based upon a soil survey 13. Site Plan. The applicant shall submit a site plan indicating the arrangement and location of proposed: a. Structures b. Setbacks of all structures c. Right -of -way alignments, widths and names of streets. d. Off -street parking and service areas e. Areas to be dedicated for recreation, schools, or open space f. Pedestrian circulation system, including sidewalks and trails g. Lot subdivision h. Easements i. Topographic features 14. Engineering Plans. For PUD applications, the applicant shall submit preliminary engineering plans for all public or private support facilities including roads, sidewalks, drainage ditches, culverts and water retention areas, sanitary sewers, storm sewers, water supply lines, and illumination. 15. Photometric Plan. For PUD applications, the applicant shall submit the proposed photometrics (level of illumination) of the site as well as the specific design details of all exterior light sources including light color, height of light fixtures, illustration of fixtures, and screening of illumination. 16. Landscape Plan. For PUD applications, the applicant shall submit a preliminary landscape plan. See Chapter 17.20 of this UDO for information and requirements on landscape plans. 17. Tree Preservation Plan. For PUD applications, the applicant shall submit a tree preservation plan. The tree preservation plan shall consist of a tree survey that graphically shows the location of trees on site, identifies those trees to be preserved, and details efforts to protect those trees during construction. See Section 17.20.130 for information regarding tree preservation. 18. Building Elevations. For PUD applications, the applicant shall submit architectural renderings of all elevations of all proposed buildings, including trash enclosures, or perspective drawings of the same. All exterior materials and colors should be indicated. 19. Sign Plan. For PUD applications for commercial uses, the applicant should submit elevations of the sign face(s) shall be prepared, to scale, and shall indicate sign design, dimensions, materials, colors, and method of illumination. 20. Additional Information. The Community Development Director may require additional information necessary to allow a complete and adequate evaluation of the application. C. PLAN /MAP REQUIREMENTS. All maps and plans shall contain the following information: 1. North arrow or other indication of true north or map north; and 2. Date of map / plan preparation. 3. Name of person preparing map / plan 4. Scale. Express scale verbally (e.g. 1 inch equals 60 ft). Other forms of scale, while not required, are desirable (e.g. bar scale or ratio such as 1:24,000) APPENDIX C FINAL PLAN/ PLAT APPLICATION REOUIREMENTS This Appendix C includes the application requirements for: (1) final plats required for land use approvals other than a planned unit development (PUD); and (2) PUD final plan/plats. For those applicants who wish to seek final plan/plat approval directly, i.e. without first securing approval of a preliminary plan/plat, final plan/plat submissions shall be the same as the requirements of a preliminary plan/plat (see Appendix C), except that engineering and landscaping plans shall be completed to a "final" level, and a final plat shall be submitted in lieu of a preliminary plat. A. SUBMISSION OF APPLICATIONS 1. Application Completeness. Applications shall be submitted in person; applicants shall schedule a meeting with Community Development Department staff for the submission of an application. At this meeting staff will review the application for completeness. If the application is complete, a date for the public hearing, if required, will be determined and the public notification responsibilities of the applicant will be reviewed. Incomplete applications will not be accepted, and all documents will be returned to the applicant. 2. Manner of Submission. A complete application shall be deemed one that includes all of the required documents as listed in Paragraph B of this appendix and one that is submitted in the proper format. Applications shall in the form of a packet containing the required documents. All packets shall be: a. Collated, and bound; b. Contain all documents listed in the checklist below, with oversized (i.e. larger than 8.5 x 11) maps and documents folded; c. Be tabbed and labeled with exhibit numbers. The order of required documents in Paragraph B below is the suggested and preferred order for the exhibits. B. REQUIRED DOCUMENTS The following documents are required for Final Plat applications and PUD Final Plan/Plat applications: 1. Application Form. One original copy of the completed application form, signed by the applicant, and notarized. 2. Application Fee. An application fee shall be paid at the time of application. Applications without payment of the fee shall be considered incomplete. See the current fee schedule (Appendix A) for the required fee. 3. Escrow Money. At the time of application, the applicant shall submit another check for the establishment of an escrow account. The escrow money shall be used to defray costs of public notice, consultants, or other direct costs associated with the application incurred by the Village. Additionally, should the applicant fail to remove the public notice sign in a timely manner, the escrow may be used to defray the costs of the sign's removal. See Appendix A for the minimum required escrow amounts. 4. Proof of Ownership. The requirements of this paragraph may be waived if the applicant has previously completed an application for a preliminary plan/plat. Proof of ownership of the subject property shall be provided. One copy of a deed that documents the current ownership of the subject property is required. If the applicant is the owner, this is the only documentation necessary. If the applicant is not the owner, the following are required in addition to a copy of the deed: a. If the applicant is the contract purchaser of the property, a copy of the contract must be attached. b. If the applicant is acting n behalf of the beneficiary of a trust, a notarized letter from an authorized trust officer identifying the applicant as an authorized individual acting in behalf of the beneficiaries must be attached. The letter must also provide the name, address, and percentage of interest of each beneficiary. c. If the applicant is acting on behalf of the owner, a notarized letter of consent from the owner must be attached. d. If the property owner is a company, a disclosure of the principals of the company must be included in the application materials. For example, an LLC may submit a copy of the LLC management agreement. 5. Title Search. Current Title Search, Title Commitment, or Title Policy for all subject properties shall be submitted. 6. Restrictions and Covenants (if applicable). A draft of any proposed protective restrictions and covenants or existing restrictions and covenants shall be provided, as applicable. 7. Declaration of Easements. A statement on easements that will be required for public improvements (e.g. water service), and whether easements have been obtained shall be provided. 8. Final Plat. The final plat shall be prepared on permanent reproducible material, such as Mylar, suitable for recording with the County Recorder of Deeds at a scale of one inch equals one hundred feet, or larger. All final plats shall include: a. Proposed name of subdivision not duplicating name of any plat heretofore recorded in the Village or the appropriate county. b. Location by township, section, town, and range, or by other legal description. c. An identification system for all lots and blocks. d. Accurate angular and lineal dimensions for all lines, angles, and curvatures used to describe boundaries, streets, alleys, easements, areas to be reserved for public use, and other important features. Lot lines to show dimensions in feet and hundredths. All dimensions shown on cured lines shall be arc distances. e. True angles and distances to the nearest established street lines or established survey monuments (not less than two), which shall be accurately described in the plat. f. North point (true north). g- Township, county, or section lines accurately tied to the lines of the subdivision by distance and angles. h. An indication of the square footage of all lots within the subdivision. i. All horizontal dimensions, including radii, internal angles, points of tangency and curvature, tangent bearings and lengths of arcs. J. Accurate location of all monuments, which shall meet the requirements of the Illinois Compiled Statutes. k. Accurate outlines and legal descriptions of any areas to be dedicated or reserved for public use, or for the exclusive use of the property owners within the subdivision, with use purposes indicated on the plat. 1. All easements required for the installation and maintenance of utilities (electric, water, waste water, gas, telephone, etc) together with a statement that dedicates the easements to the Village or other appropriate authority. m. All scenic or access easements together with a statement that dedicates the easements to the Village or other appropriate authority. n. Certification by a licensed surveyor, to the effect that the plat represents a survey made by him/her and that monuments and markers shown thereon exist as shown and that all dimensions are correct. o. Notarized certifications (see Appendix D of this Unified Development Ordinance). p. Supporting documents as required by the Village, such as special studies, landscaping plans, homeowners' association covenants and agreements, etc. 9. Engineering Plans. For PUD applications or applications involving a lot subdisvision where a road is required to access one of the lots, or where sewer and water extension is required to service one of the lots, the applicant shall final engineering plans for all public or private support facilities including roads, sidewalks, drainage ditches, culverts and water retention areas, sanitary sewers, storm sewers, water supply lines, and illumination. See Paragraph C below for specific requirements for final engineering plans. 10. Photometric Plan. For PUD applications, the applicant shall submit the proposed photometrics (level of illumination) of the site as well as the specific design details of all exterior light sources including light color, height of light fixtures, illustration of fixtures, and screening of illumination. 11. Landscape Plan. For PUD applications, the applicant shall submit a preliminary landscape plan. See Chapter 17.20 of this UDO for information and requirements on landscape plans. 12. Tree Preservation Plan. For PUD applications, the applicant shall submit a tree preservation plan. The tree preservation plan shall consist of a tree survey that graphically shows the location of trees on site, identifies those trees to be preserved, and details efforts to protect those trees during construction. See Section 17.20.130 for information regarding tree preservation. 13. Building Elevations. For PUD applications, the applicant shall submit architectural renderings of all elevations of all proposed buildings, including trash enclosures, or perspective drawings of the same. All exterior materials and colors should be indicated. 14. Sign Plan. For PUD applications for commercial uses, the applicant should submit elevations of the sign face(s) shall be prepared, to scale, and shall indicate sign design, dimensions, materials, colors, and method of illumination. 15. Additional Information. The Community Development Director may require additional information necessary to allow a complete and adequate evaluation of the application. C. FINAL ENGINEERING PLAN REQUIREMENTS 1. A title sheet showing the name of the project, section, township, and range, an index of sheets, a tabulation of symbols, locations of benchmarks, and a graphic location with respect to the nearest traveled streets and roads. 2. A detailed grading plan indicating the vertical elevations of all buildings, lot comers, and points of change in gradient. Directions of flow of surface waters will be delineated with arrows and the gradient of the land indicated above with arrows. Curb elevations will be indicated opposite each lot comer and at all changes in gradient. 3. A detailed plan of street improvements showing horizontal and vertical locations of all street improvements and including horizontal and vertical locations of all points of curvature, points of intersection, points of tangency, points of vertical curvature, points of vertical intersection, and points of vertical tangency. Radii of intersection of streets will be shown on this plan. 4. A detailed plan of storm improvements showing horizontal and vertical location of all manholes, catch basins, inlets, headwalls, and the like and indicating lengths, types, and grades and gradients of all storm sewers. Manholes, catch basins and inlets will be dimensioned from lot comers. 5. A detailed plan of sanitary sewer improvements showing horizontal and vertical locations of all manholes, and indicating lengths, types and grades and gradients of all sanitary sewers. Manholes will be dimensioned from lot corners. 6. A detailed plan of water system improvements indicating horizontal and vertical location of all fire hydrants and valve vaults and showing lengths, sizes, and locations of all water mains. Fire hydrants and valve vaults will be dimensioned from lot comers. 7. Plans and profiles drawn to scale not to exceed one inch equals on hundred feet (1" = 100') horizontally and one inch equals ten feet (1" = 10') vertically indicating additional horizontal and vertical locations of streets, sewers, appurtenances and the existing grade. 8. Such additional details as necessary to clarify the extent or manner of construction. 9. Detailed material and construction specifications concerning the work to be performed including general conditions of the contract acceptable to the Village. 10. A detailed cost estimate of the work to be performed. 11. A detailed erosion control plan showing clearing, stockpiling, construction sequences, configuration of erosion controls and areas to be landscaped or lawns established. Proposed schedules for restoration must be submitted with the plan. 12. Existing and proposed cross sections at intervals not more than 100 feet of proposed roadways where roadway grading and alignments will impact on undisturbed ground must be provided. D. FINAL LANDSCAPE PLANS Final landscaping plans shall contain all of the details listed in §17.20.030 of this Unified Development Ordinance. E. PLAN/MAP REQUIREMENTS. All maps and plans shall contain the following information: 1. North arrow or other indication of true north or map north; and 2. Date of map / plan preparation. 3. Name of person preparing map / plan 4. Scale. Express scale verbally (e.g. 1 inch equals 60 ft). Other forms of scale, while not required, are desirable (e.g. bar scale or ratio such as 1:24,000) TABLE F -1 Trees Approved for Parkway Planting SMALL TREES' Species Crataegus spp Maulus 'Prairiefire' Pyrus calleryana ' Aristocrat Common Name Hawthorn (thornless) Prairiefire Crabapple Aristocrat Pear LARGE TREES Acer x freemanii ' Autumn Blaze' Acer x freemanii ' Marmo' Aesculus glabra Catalpa speciosa Celtis occidentalis Cercidiphyllum japonicum Ginkgo biloba (male) Gleditsia triacanthos var. inermis 'Shademaster' Gleditsia triacanthos var.inermis 'Skyline' Gymnocladus dioicus Quercus alba Quercus bicolor Quercus ellipsoidalis Quercus macrocarpa Quercus muehlenbergii Quercus rubra Taxodium disticum Tilia Americana Tilia americana 'Redmond' Tilia cordata 'Glenleven' Tilia cordata 'Greenspire' Ulm us 'Morton' accolade Ulm us carpinifolia Autumn Blaze maple Marmo maple Ohio Buckeye Catalpa Hackberry Katsuratree Ginkgo Shademaster Honeylocust Skyline Honeylocust Kentucky Coffeetree White Oak Swamp White Oak Hill's Oak Bur Oak Chinquapin Oak Red Oak Baldcypress American Linden (Basswood) Redmond Linden Glenleven Littleleaf Linden Greenspire Littleleaf Linden Morton Elm Homestead Elm Small trees only permitted for use where overhead restrictions exist, e.g. utility lines CIRCULAR CROWN VARIES 1/4" PER FOOT, 12" MIN. i COMPACTED SUBGRADE FLEXIBLE PAVEMENT SECTION SCHEDUL A HOT MIX ASPHALT BASE COURSE, N50 B BITUMINOUS MATERIALS PRIME COAT (0.10 GAL. /S.Y.) C HOT MIX ASPHALT BINDER COURSE, N50 D TACK COAT (0.15 GAL./ S.Y.) E HOT MIX ASPHALT SURFACE COURSE, MIX C, N50 F PORTLAND CEMENT CONCRETE CURB AND GUTTER (SEE DETAIL LS -2) G TOPSOIL (4" MINIMUM) H SUBORADE GRANULAR MATERIAL, TYPE B, 4" I GEOTECHNICAL FABRIC FOR SOIL STABILIZATION SEE STANDARDS LS -1B FOR PAVEMENT THICKNESS VILLAGE OF LEMONT TYPICAL PAVEMENT SECTION 12/10/01 NO. LS -1a REV. 3 SCHEDULE (Prime Coat) O Z O v z v Z cn U O c o 0 x_ V O M O O v 0 v N Z a o c L N a U , V N m 0 0 O a> o o v c x (6, v E g O O~ O 7 c o - v p U1 03 an , -0 co co + - 0 0 o m p rn \caaaU] cC/1 a < < o of •- Qx x x O co C> CD C--) LC) o a 7 0 0 0- 0, v a O d T _= O Q 0< QQ�QS 04i (iV 2 W O z (-) a0 LtA UZ 1- 1- w w 1- (n f 0 U w J O U N ri I I Z N INDUSTRIAL gi a v o O c C 0 a> 0 aJ 0 o O - C = (n v O L 00,3 a v v -: L a - v,cn3 a o 0 Doti N -co, v in 3,r Z. 0O • K N c L 0 JD -O m =w.E v in 0L O , . D 3 U)� p E W o O j CLASS SI CONCRETE N I 12" 3/4" PER FOOT °12" a 1" 6" 2 "R 7 "< °4 <° a 4 a 4 4 4 TOP OF DEPRESSED CURB F 4" MIN. COMPACTED SUB -BASE COURSE 12' MIN. STANDARD BARRIER AND DEPRESSED CURB AND GUTTER CLASS SI CONCRETE N 10" 8„ 3 "R TWO -3/4° X 18- SMOOTH DOWEL BARS WITH CAPS AT EXPANSION JOINTS 1 3/4" 4 d 4 a 4 TWO -3/4" X 18- SMOOTH DOWEL BARS WITH CAPS AT EXPANSION JOINTS 12' MIN. 4" MIN. COMPACTED SUB -BASE COURSE TYPICAL ROLLED CURB AND GUTTER NOTES: 1. CONSTRUCT CONTRACTION JOINTS AT 20' MAXIMUM SPACING 2. CONSTRUCT EXPANSION JOINS AND CONTRACTION JOINTS ACCORDING TO IDOT STANDARD SPECIFICATIONS, LATEST EDITION 3. EXPANSION JOINTS SHALL BE PROVIDED AT POINTS OF CURVATURE ON ALL CURVES 4. CURING AND SEALING COMPOUND SHALL BE W.R. MEADOWS INC. "LIN- SEAL" EMULSION, OR APPROVED EQUAL VILLAGE OF LEMONT CURB AND GUTTER 12/10/01 NO. LS -2 REV. 3 COMMERCIAL 14' MIN. 35' MAX. MAJOR ST. OR COLLECTOR ST. COMMERCIAL 14' MIN. 15* %35' MAX s 0 5'R MIN. 30' R TO BOC 30'R 5'* 60' MIN. ON COLLECTOR 80' MIN. ON MAJOR ST. 5'* 20' MIN 9' MIN., 22' MAX. AT PROPERTY LINE 28' MAX. FOR 3 CAR GARAGE RESIDENTIAL NOTES: 9' MIN., 22' MAX. AT PROPERTY LINE 28' MAX. FOR 3 CAR GARAGE RESIDENTIAL 1. EXPANSION MATERIAL IS REQUIRED BETWEEN CONCRETE DRIVES AND CURB OR SIDEWALK 2. WHERE NEW CONCRETE WORK MEETS OR ABUTS EXISTING CONCRETE, THE EXISTING CONCRETE SHALL BE SAWCUT TO A STRAIGHT AND CLEAN EDGE AND EXPANSION MATERIAL PLACED BETWEEN THE NEW AND EXISTING WORK. DEPRESSED CURB SIDEWALK AND GUTTER MAXIMUM DRIVEWAY /PARKWAY SLOPE 8% 3. ALL CURB REPLACEMENTS MUST BE AT LEAST 3 FEET IN LENGTH. TYPICAL SECTION 4. DRIVEWAY COMPOSITION SHALL BE PER LEMONT STANDARDS NO. LS -16. 5. CONTRACTION JOINTS SHALL BE IN ACCORDANCE WITH SECTION 3.04 OF THE LEMONT STANDARD SPECIFICATIONS WHERE DRIVEWAYS ARE LARGER THAN 12 FEET IN ANY DIRECTION, JOINTS SHALL BE EVENLY SPACED. *WHICH EVER IS GREATER VILLAGE OF LEMONT DRIVEWAY APPROACH 12/10/01 NO. LS -3 REV. 2 _O 1 Y a a 13140 1141 VILLAGE OF LEMONT CURB RAMPS 12/10/01 NO. LS -4a REV. 2 L %re) J '19 \I / \I/ IYnDJL ■0 uoi:c1)J10 SC2 ■ VP 9914 1400 09 - VFW 2Y TRIANGULAR PATTERN DETECTABLE WARNINGS DETAIL i §S I Ot Rof g8 oa Y„ its f►i 4: of EC 2 T,_ Hi: VILLAGE OF LEMONT CURB RAMPS 12/10/01 NO. LS -4b REV. 2 TRANSITION FROM TOP OF CURB TO TOP OF SIDEWALK VARIES R.O. W R. 0.W DEPRESSED CURB • 3/4" EXPANSION JOINT FILLER w 0 15'9 UNLESS 3/4" EXPANSION OTHERWISE JOINT (TYR.) NOTED DEPRESSED CURB AND GUTTER TYPICAL DRIVEWAY APRON AND ALLEY RETURN 8% MAX H 5'��1, 1% MIN. 2% MAX. ( R.O. W 8% MAX. 3/4" EXPANSION JOINT FILLER SECTION A -A 3/4" EXPANSION /JOINT FILLER • * NOTE: SIDEWALK WIDTH IN COMMERCIAL AREAS SHALL BE SIX FEET. 4% MAX. 2" AGGREGATE BASE COURSE 5" PCC SIDEWALK SECTION B -B 4" AGGREGATE BASE COURSE 8" PCC (FOR ALLEY RETURN) * SEE STANDARD LS 6 RESIDENTIAL FOR DRIVEWAY PAVEMENT COMPOSITION VILLAGE OF LEMONT DRIVEWAY APRONS AND ALLEY RETURNS 12/10/01 NO. LS -5 REV. 2 3/4" PREFORMED EXPANSION STRIP VARIES 9' MIN., 22' MAX. m R. 0.W w > DRIVEWAY APRON 5' CONCRETE WALK (6' CONCRETE WALK IN COMMERCIAL AREAS) 1' CURB TRANSITION NOTES: 4% MAk. 3/4" PREFORMED EXPANSION STRIP- CURB AND GUTTER 1' CURB TRANSITION DEPRESSED CURB AND GUTTER PAVEMENT 4" AGGREGATE BASE COURSE 6" MIN. PCC CONCRETE SECTION A -A g% MAXIMUM 1% MINIMUM 2% MAXIMUM ti SECTION B -B DRIVEWAY PAVEMENT ALTERNATES: (A) 6" PC CONCRETE 4" COMPACTED AGGREGATE BASE COURSE (CA6) (B) 2.5" BITUMINOUS CONCRETE SURFACE, CLASS I 6" COMPACTED AGGREGATE BASE COURSE (CA6) CROSS SLOPE SIDEWALK VILLAGE OF LEMONT RESIDENTIAL DRIVEWAY 12/10/01 NO. LS -6 REV. 2 �C ►- D -ifEi WALL TO INTERLOCK INTERLOCKING F G MODULE MODULE X = STALL NOT ACCESSIBLE IN CERTAIN LAYOUTS DIMENSIONS (FT.) H ON STANDARD U.S. VEHICLE STALL ANGLE* DIAGRAM 45 60 75 90 STALL WIDTH, PARALLEL TO AISLE A 12.7 10.4 9.3 9.0 STALL LENGTH OF LINE B 25.0 22.0 20.0 18.0 STALL DEPTH TO WALL C 17.5 19.0 19.5 18.0 AISLE WIDTH BETWEEN STALL LINES D 14.0 18.0 23.0 24.0 STALL DEPTH, INTERLOCK E 15.3 17.5 18.8 18.0 MODULE, WALL TO INTERLOCK F 47.8 54.5 61.3 62.0 MODULE, INTERLOCKING G 45.6 53.0 61.0 62.0 MODULE, INTERLOCK TO CURB FACE H 46.8 53.5 60.3 61.0 TYPICAL BUMPER OVERHANG I 1.0 1.0 1.0 1.0 CROSS AISLE, ONE -WAY L 14.0 14.0 14.0 14.0 CROSS AISLE, TWO -WAY L 24.0 24.0 24.0 24.0 * STALL WIDTH 9.0 FT. VILLAGE OF LEMONT PARKING LOT 12/10/01 NO. LS -7 REV. 1 L SILT FENCE SILT FENCE PLAN E3 Filter Fabric Suppor' 1111111 1111111 / l EC 471 Y ■ V Q C Q a9 TI C Y LLW m N $ 8 hir43 0 mu 7143 0 m dAl) YIYI�t the ground and bury the flap. — I z Alf 2 0 >f 0 L. • C V. eC -Gm 0 L. ■ 0 .0 O. G a P Y •- ■ ■ v .0 Y ■ - • opm -a k w - w0 e m 0 w o • 9 Ot YM CC p ". I L • C ° -00.m? pro `m n e ° m a p 9 6 a0 * C € a o Y 4 ■ 7 O • d •L • - • =0• Y ! e ■ 1"..9='-c Q a - O >- 0 b - w .. b. 7 -mCFOOi a €.ti. 0:t.) oii o °« • Cm :- CO CCO .CN a• � g ■ . u- 0 C A •• . c >- o O .- G O` O a 000 ■ '. 0 0 r r L09 0 oa ■ - - ° a p . ■ O L. .o- 0....6..0 _ oO. • -.m. r G - - O ■• _ 5 C ■ m m -° K H- r r- °- r.- O m 00 0 9. 0 Y .- - - 0 C 0 o .0 aa� .o-• Ya ■ Y 14. M =01 - Y ■ • O C m C 0 - - Y - • 0 r— -- 01....0) 431. 0 h. u NM Y YI n VILLAGE OF LEMONT SILT FENCE 12/10/01 NO. LS -8 REV. 1 TREE LINE EASEMENT TYPICAL BOTH SIDES OF CENTER LINE STORM SEWER RIGHT -OF -WAY W SAN, SEWER STREET LIGHT BACK OF CURB ROADWAY CENTER LINE BACK OF CURB GAS G �n FIRE HYDRANT WATER MAIN CURB BOX SIDE WALK N RIGHT- OF -WAY Z 0 F- 0 LU (11 WAY CROSS z 0 LLJ J VILLAGE OF RESIDENTIAL RIGHT -OF -WAY N W cr NO. LS -10 0 O N TYPICAL RESIDENTIAL W W 0 I- 0 Lai z Z LJ II Q ID P1' N r z 0 _ 2f3A3H01HM '2j313WVI0 W U CC 3dld b/ L ?JO w z LLJ Af1WINiW „b ONI0038 N Cr 0 LJ Z > ¢ Q 0 0J_I W Q Z 0 2 K c Q w U U Z 0 r CD J Q CO co 2 _ a7Z w I-- 71 I- W- J m Q Z J 3 D- OmW¢ W 2 a U �- Q Ir CL< LJ lJw ¢Ct O Zw¢ U0I- Li-0 MM SECTION FOR RIGID SEWER PIPE 5312�VA W -J J ¢ CO OQ 1 r cr a = Q M W W (n Z r> H Q 0 W W Z D 7' CC W = J 20 0 0 0W¢0J -Q W (wnz Q0 U >EQ W Z w J Q o z J Z O W J Z 6: CD 03 LJ 1IJJ W gra< <cr nn <I- LL- CC J Q ¢ O W W I- ¢¢ � >lD o a I ¢ J >zW z 0 2 J d LJJ -J 1_ 2 E 0 y J W U QX W� 2 Z r J a O cL Q F cO 2 Z 0 CO TRENCH SECTION FOR WATER MAIN PRESSURE PIPE (R.C.C.P. or D.I.) w J 0 Z Q 2 CC O c. CC U O > a Q ¢ W O Vl2Q W >" a U W Q r 0 J U J Q J 0 _ U W W U W Z Z 0] ¢ L J a (n O W W° o C 7 Q J m a W < Z_ 0 r 0 co Z V CU Q - W w 0 U) 2 200(n Uwi0wz U V J O Z 0 2 a r 2 C>- I J N m 7 I- pU WCC h- dW T Q Q 3 W L_ ?_J O Q 0 7� 0 O¢O z =O 2E01C f U W V I M N J)¢ O O 0 Z Z z 0> J w p m W Q J W 0 ill 12 CrZ a ¢mO��v2 N N OF LEMONT w `J_ BEDDING AND BACKFILL NO. LS -20 W U ao( a CC J W U ¢ L O Q U W m w Q d J 07 ccU � Q LLJ U Z w W S 0 W U I- EL n w -zaz =0- > I I r m OQ�J cL f 2i31V3210 SI a3AJH01HM `LI313AVlG 3dld b/ L X10 Wf1WINIW „b ONI0038 S3I8VA SEWER PIPE w J Q7 X LJ J LL O L_ z 0 U LLJ (n U z w 1- w W 0 0 U m 2 - #8 THRU 12" 2 - #10 FOR 14" THRU 18" SPECIAL DESIGN FOR LARGER THAN 18" VERTICAL BEND NOTE 5 NOTE 4 NOTE 4 HORIZONTAL BEND MEGALUG 1000 OR 1000SD SERIES RESTRAINING SYSTEM SHALL ALSO BE REQUIRED AT ALL THRUST BLOCK LOCATIONS, AS SUPPLEMENTAL PROTECTION NOTES: DEAD END PLUGGED TEE nnnn nii u � n =11 =11 nnn TEE 1. ALL BLOCKS TO BE SOLID CAST -IN -PLACE CONCRETE EXCEPT AT VERTICAL BEND. 2. ALL BLOCKS TO BEAR AGAINST UNDISTURBED EARTH, AND BE 12" MINIMUM THICKNESS 3. ARROWS INDICATE DIRECTION OF THRUST, 4 3" STANDARD WEIGHT STEEL PIPE W/ 3/8"x6"X0'-6 STEEL PLATES. 5. COAT EXPOSED PORTION OF BARS WITH BITUMASTIC COMPOUND. VILLAGE OF LEMONT THRUST BLOCKS 12/10/01 NO. LS -21 REV. 2 PRECAST MANHOLE EJIW 1050 OR NEENAH R -1550 MANHOLE /FRAME AND SOLID LID WITH WATER LETTERED ON COVER, OR EQUAL (GASKET SEALED) FINISHED GRADE 0- =u- I 11= a p NPW- = 11F11 =11FJL z NOTES: 1. NO MORE THAN TWO ADJUSTING RINGS FOR A TOTAL 6" OF ADJUSTMENT MAY BE USED 2. VALVES MUST ALIGN WITH CENTER OF VAULT OPENING 3. VALVE VAULT DIAMETER SHALL BE 5 FOOT FOR 12" VALVES AND PRESSURE CONNECTIONS OF 8" DIAMETER AND LARGER 4. CONES MUST BE CONCENTRIC PREFORMED BITUMINOUS MASTIC BED STEPS SPACED AT 12" TO 16" CTRS. EJIW 8510 OR INDUSTRIES PS -4 STEEL REINFORCED PLASTIC PROVIDE 1/2" PREFORMED JOINT FILLER BETWEEN PIPE AND PEDESTAL CONCRETE PEDESTAL WIDTH OF PIPE WIDE BY LENGTH OF VALVE SAND CUSHION (FA 1, 2, OR 6) PRECAST REINFORCED CONCRETE VILLAGE OF LEMONT WATER VALVE VAULT 12/10/01 NO. LS -22 REV. 1 "WATER" ON LID SCREW TYPE ADJUSTMENTS FOR DEPTH. MIN. ADJUSTMENT 6 INCHES z TYLER 664 -S 2" SQUARE OPERATING NUT STABILIZER CONCRETE BLOCK USE 1 SQ. FT. MIN. 9Q WATERMAIN VILLAGE OF LEMONT VALVE BOX 12/10/01 NO. LS -23 REV. 2 r STORM SEWER -SANITARY SEWER z 3 CURB STOP 08 -90X0 1 1/2" COPPER WATER SERVICE WITH SLACK IN LINE STORM SEWER SERVICE 10' MINIMUM y SEPARATION PAVEMENT WATERMAIN SANITARY SEWER SERVICE PLAN / / / BUILDING/ / / / / / / / / / / / / / / /// WATER SERVICE LINES MUST BE BACKFILLED WITH SAND TO 6" OVER TOP OF COPPER LINE 71L)rllgllk"7 \ /1.11klllr1Lrlll OPTION AL EIGHTH BEND COUPLING EXTENSION TYPE CURB BOX, 1 1/4" THREAD, FORD EA 26040 OR MUELLER H- 1515H. 1 1/2" MIN. TYPE "K" COPPER TUBE SERVICE. PLACE IN TRENCH WITH SOME SLACK IN LINE TO BUILDING 6x6 CONCRETE BRICK CORPORATION STOP COUPLING FLARING TYPE FORD F -600 OR MUELLER H- 15000- NOTES: UNDISTURBED EARTH NOTE: WATER SERVICES OF 2" DIAMETER TO REQUIRE FULL CIRCLE STAINLESS STEEL TAPPING SADDLES, MUELLER "55" SERIES OR APPROVED EQUAL 1, TAPS AT ANGLES UP TO 90' WILL BE PERMITTED IF CONDITIONS DO NOT ALLOW TAPPING AT 45'. 2. TAPS MUST BE MADE 3 FEET FROM THE BELL OF THE PIPE WHERE. TWO OR MORE TAPS ARE MADE, THEY MUST BE 18" APART. 3. SEWER SEPARATION REQUIREMENTS MUST BE SATISFIED IN ALL CASES. 4. CURB STOP COVER SHALL BE FLUSH WITH FINISHED GRADE. 5. CURB STOP SHALL NOT BE IN DRIVEWAY. 6. CURB STOP IS WITH COMPRESSION COUPLING FORD B44 -444 FOR 1 1/2" FLARED COPPER, OR MUELLER EQUAL. 7. CURB STOP LID HAS 1 1/2" THREADED BRASS PENTAGON PLUG WITH WORD "WATER" IN RAISED LETTERS. VILLAGE OF LEMONT WATER SERVICE CONNECTION 12/10/01 NO. LS -24 REV. 2 MIN. 4 1/2" INCH 5' FROM PUMPER NOZZLE TO BACK OF CURB (2) 2 1/2 INCH HOSE NOZZLES BREAKAWAY FLANGE, APPROXIMATELY 2" ABOVE GROUND INSTALL LAYER OF FILTER FABRIC OVER DRAIN FIELD 1/3 YD.3 MIN. WASHED GRAVEL DRAIN HELD (2' MINIMUM DIAMETER AROUND: HYDRANT) WORD 'WATER" ON COVER VALVE BOX (TYLER 664 -S) GATE VALVE TURN LEFT TO OPEN HYDRANT BRANCH 6" MINIMUM DIAMETER STABILIZER CONCRETE THRUST BLOCK (SIZE DETERMINED FROM THRUST BLOCK DETAILS) PROVIDE CONCRETE BASE AND THRUST BLOCKING AGAINST UNDISTURBED EARTH (TYP.) MINIMUM 12" THICK NOTES: HYDRANT DRAIN OPENING SHALL NOT BE BLOCKED OR OBSTRUCTED 1. HYDRANT TO HAVE A BREAKAWAY FLANGE 2. HYDRANT TO BE PAINTED TNEMEC GLOSS SAFETY GREEN 3. CONFORM TO AWWA C -502 EAST JORDAN BR -6, OR CLOW MEDALLION 4, HYDRANT VALVE TO BE SAME MANUFACTURER AS HYDRANT FLANGE CONNECTION TO HYDRANT FLANGE OR MJ WITH MEG -A -LUG ui MJ SWIVEL TEE WITH MJ SWIVEL GLAND VILLAGE OF LEMONT HYDRANT AND VALVE 12/10/01 NO. LS -25 REV. 2 z a (-SANITARY SEWER STORM SEWER CURB BOX 10' MINIMUM SEPARATION PAVEMENT "BANDSEAL" BETWEEN DIFFERENT PIPE MATERIALS SANITARY SEWER SERVICE STORM SEWER SERVICE PLAN VIEW MINIMUM COVER 4' TO FINISHED GRADE SANITARY SEWER 1% MINIMUM SLOPE= 4% MAXIMUM X o, 0 STORM SEWER 1 1/2" MIN. COPPER WATER SERVICE WITH SLACK IN LINE / "BANDSEAL" BETWEEN DIFFERENT PIPE MATERIALS NOTE: 10" MINIMUM SEPARATION TO BE MAINTAINED IN ALL CASES. NO EXCEPTIONS ALLOWED. 4" MINIMUM GRANULAR PIPE BEDDING (CA 11 OR CA 13) 6' MIN. BEDDING NOTES: SECTION A -A 1. NO SEWER CONECTION THAT WOULD INTRODUCE STORM WATER. RAIN WATER, SURFACE OR ROOF RUNOFF, GROUND WATER SEEPAGE FROM TILE DRAIN. LIQUID PETROLEUM PRODUCTS OR FLAMMABLE LIQUIDS INTO THE SANITARY SEWER WILL BE ALLOWED. 2. ALL CROSSINGS OF WATER AND SEWER MUST BE IN ACCORDANCE WITH SEWER AND WATER SEPERATION REQUIREMENTS OF THE ILLINOIS EPA. 3. TRENCH CUTS TO BE RESTORED TO EXISTING CONDITIONS, DRIVEWAY, STREET OR SIDEWALK CROSSINGS TO BE FILLED TO THE SURFACE WITH COMPACTED GRANULAR MATERIAL, CA6. SEE TRENCH CUT RESTORATION DETAIL. 4. CONNECTION TO MAIN BY WYE OR SEWER TAP WITH METAL SLEEVE. 5. FERNCO (OR EQUAL) TYPE COUPLING SHALL BE USED IN THE CONNECTION OF SEWER PIPES OF DISSIMILAR MATERIALS. MAINTAIN 12" MINIMUM VERTICAL CLEARANCE FOR PIPE SUPPORT MATERIAL ALLOWED MATERIAL PIPE SPEC. JOINT SPEC. 6" P.V.C. PIPE SDR 26. PR ASTM D -2241 ASTM D -3139 6" DUCTILE IRON PIPE CLASS 52, COATED OR CEMENT LINED AWWA C151 AWWA C -111 VILLAGE OF LEMONT SANITARY SEWER SERVICE CONNECTION 12/10/01 NO. LS -40 REV. 2 PLAN A • 6" 45' ELBOW WITH WATERTIGHT PLUG OR CONNECT TO EXISTING SERVICE SOLID CONCRETE THRUST BLOCKING AGAINST UNDISTURBED EARTH (TYP.) MINIMUM 12" THICK SECTION A -A w U 7 Ow W 0 U w < LL- CC J CL UNDISTURBED EARTH SHAPE TO PROVIDE UNIFORM UNIFORM BEARING FOR 1/4 OF BARREL CIRCUMFRENCE MAXIMUM SLOPE (SLOPE TO BE LESS THAN I TO I WHEN NECESSARY TO SECURE BEDDING IN UNDISTRUBED EARTH STANDARD WYE - BARREL SIZE TO BE AS CALLED FOR ON PLANS. BRANCH TO BE 6 VILLAGE OF LEMONT SANITARY SERVICE RISER 12/10/01 NO. LS -41 REV. 1 NOTES: 1. STEPS SHALL CONFORM TO THE REQUIREMENTS OF THE IDOT STANDARD SPECIFICATIONS, 2. PROVIDE CA -6 AGGREGATE BACKFILL AROUND MANHOLE TO SUBGRADE ELEVATION IN PAVED AREAS. 3. CASTINGS TO BE AS SPECIFIED IN THE STANDARD SPECIFICATIONS, 4. MANHOLE COVER SHALL BE EJIW NO. 1050 OR NEENAH R -1550 AND HAVE 2" RAISED LETTERS: "SANITARY "AND "VILLAGE OF LEMONT" R -1550 WITH SELF SEALING TYPE A HEAVY DUTY LID AND GASKET SEALED WITH CONCEALED PICKHOLES SET FRAME IN GROUT VARIABLE DEPTH 24" AND UNDER D =4" 27" TO 36" INCLUSIVE D-5" EXISTING SEWER 1 OR SEWER TO BE CONSTRUCTED OR J J NOTE: PROVIDE INTERIOR CHIMNEY SEALS (CRETEX OR EQUAL) AT ALL SANITARY SEWER MANHOLES TO PREVENT INFILTRATION. USE 3/16" RUBBER SLEEVE (ASTM C923) WITH 1 1/4" STAINLESS STEEL COMPRESSION BANDS (ASTM C240) PREFORMED MASTIC (TYP) STEPS SPACED AT 12" TO 16" CTRS. ALL CONNECTIONS TO BE BY PREINSTALLED SYNTHETIC RUBBER SLEEVE WITH STAINLESS STEEL CLAMPS 2' =R FA 1, 2, DR 6 SAND CUSHION \\N PRECAST REINFORCED CONCRETE SLAB WITH SAND CUSHION SECTION- ECCENTRIC CLASS SI CONCRETE • BENCH PRECAST CONC. OR RUBBER COMPOSITE ADJUSTING RINGS (2 MAXIMUM) w J #4 @ 12 "� -� 8" OR 10" FOR DIAMETER, D= 4 f1, THICKNESS, T= 5 in. 5 ft. 6 in. 6 fi. 6 in. 2' MIN. M - SECTION- CONCENTRIC VILLAGE OF LEMONT SANITARY MANHOLE 12/10/01 NO. LS -42 REV. 2 M ASTM C -923 Resilient connector between concrete manhole and pipe when opening is cared Section C —C 4' —O" Min. diameter Mi" Section A —A Standard Drop Manhole 6 8 8 8 10 12 15 8 8 10 18 12 21 15 24 18 Notes: D2 shall be no smaller than two (2) nominal diameters less than 01. but not less than 8 °. Details and material for drop manhole shall be same os for standard manhole except for lateral sewer connection as shown. Manhole to be cast —in —place concrete or Type "A" w/ precast concrete sections and bottom (os shown). Invert of elbow to be placed even with the level of the bench. Minimum well thickness °t" for for drop manhole: a. 6 for cast —in —place concrete b. 1/12 manhole diameter for precast concrete. Concrete for encasement shall be 3000 psi 09 28 days. minimum. Manhole steps are omitted for clarity. 16110P01lrAN LATER RRCIAYATION Dina OP GRIM CHICAGO RNCHIRRIRNG RRPAR'BENT 10 -02 Ioce1 Sewer Systems 318:SOO VILLAGE OF LEMONT DROP PIPE ASSEMBLY 12/10/01 NO. LS -43 REV. 1 PREFORMED MASTIC - 24" UNLESS OTHERWISE NOTED NOTE: • LIFT HOLES TO BE LEFT OPEN AND COVERED WITH FILTER FABRIC TO FACILITATE ROADBED DRAINAGE. (EXCEPT IN COMBINED SEWER AREAS) NOTE: PLAN NO MORE THAN TWO ADJUSTING RINGS FOR 6" MAXIMUM ADJUSTMENT PIPE TO BE LAID ON A MINIMUM GRADE OF ONE PER CENT (17.) REINFORCED CONCRETE INLET BOTTOM WITH INTEGRAL SIDEWALL SECT ON A-A 1. PROVIDE CA -6 AGGREGATE BACKFILL AROUND INLET TO SUBGRADE ELEVATION IN PAVED AREAS AND DETENTION AREAS 2. ALL CASTINGS SHALL INCORPORATE THE "DRAINS TO RIVERS" LOGO PER STANDARD NO. LS -71 OR LS -73 (OR APPLICABLE) FA 1, 2, OR 6 SAND CUSHION VILLAGE OF LEMONT INLET, TYPE A 12/10/01 N0. LS -60 REV. 2 PREFORMED MASTIC PIPE FOR CATCH BASIN 4_11 HMIS. ' -0' DIA. MI All 0 #4 © 12" MORTAR a ANTI ------ SIPHON VENT 4' -0' DIA. PRECAST CONCRETE OR RUBBER COMPOSITE ADJUSTING RING (2 MAXIMUM), 6" TOTAL MAX. HEIGHT NOTE: LIFT HOLES TO BE LEFT OPEN AND COVERED WITH FILTER FABRIC TO FACILITATE ROADWAY DRAINAGE. (EXCEPT IN COMBINED SEWER AREAS) 1 3' ECCENTRIC CONE SECTION OR FLAT TOP Lida MM 5 MIN. a Z NOTE: HALF TRAP REQUIRED IN COMBINED SEWER AREAS, WHERE CONNECTED DIRECTLY TO A COMBINED SEWER NEENAH R -3700 EJIW 5974 RESOURCE "SNOUT" OR EQUAL NOTE: LIFT HOLES TO BE LEFT OPEN AND CONNECTED WITH FILTER FABRIC TO FACILITATE ROADWAY DRAINAGE. FA 1. 2 OR 6 FINE PRECAST AGGREGATE CONCRETE BASE NOTES: 1. PROVIDE CA -6 AGGREGATE BACKFILL AROUND CATCH BASIN TO SUBGRADE ELEVATION. 2. CATCH BASINS ARE TO BE USED IN PAVED AREAS ONLY. FOR PRECAST REINFORCING FOR FLAT SLAB TOPS SEE I.D.O.T. STANDARD 2354 -1. 3. FRAME AND GRATE EAST JORDAN 7210, NEENAH R -3281 A OR EQUAL FOR STANDARD BARRIER CURB AND EAST JORDAN 7525 OR NEENAH R -3501 P, OR EQUAL FOR ROLLED CURB. NEENAH R- 3281 -AL FOR VANED GRATE USE. 4. ALL CASTINGS SHALL INCORPORATE THE "DRAINS TO RIVERS" LOGO PER STANDARD NO. LS -71 VILLAGE OF LEMONT CATCH BASIN TYPE A 12/10/01 NO. LS -61 REV. 1 NOTES: PROVIDE CA -6 AGGREGATE BACKFILL AROUND MANHOLE TO SUBGRADE ELEVATION IN PAVED AREAS. LIFT HOLES HOLES ON MANHOLES TO BE SEALED WITH CONCRETE PLUG AND MASTIC. MANHOLE FRAME & COVER NEENAH R -1773 AND R -1772 EMBOSSED "VILLAGE OF LEMONT STORM" WITH TYPE A HEAVY DUTY COVER (ABLE DEPT A V 4 > LJ r W W 0 J J J D L_ 2'— 24" AND UNDER D =4' 27" TO 36" INCLUSIVE D-5' D EXISTING SEWER OR SEWER TO BE CONSTRUCTED FA 1, 2, OR 6 SAND CUSHION SECTION- ECCENTRIC 2 "R PREFORMED MASTIC (TYP) STEPS SPACED AT 16" ON CTR. E.J.I.W. 8518 OR MA INDUSTRIES PS -4 STEEL REINFORCED PLASTIC #4 ®12 PRECAST CONC. OR RUBBER COMPOSITE ADJUSTING RINGS (2 MAXIMUM). 6" TOTAL MAX. HEIGHT OZ > 2" MIN PRECAST REINFORCED CONCRETE SLAB WITH SAND CUSHION FOR DIAMETER, D= 4 ft. THICKNESS, T= 5 in. 5 ft. 6 in. 6 ft. 6 in. " OR 10" ■ SECTION - CONCENTRIC VILLAGE OF LEMONT STORM MANHOLE 12/10/01 NO. LS -62 REV. 1 8 EXISTING OR NEW SEWER PLAN CONCRETE MANHOLE SUBSTRUCTURE FINISHED GRADE TWO ADJUSTING RINGS FOR 6" MAXIMUM ADJUSTMENT STEPS 0 12" TO 16" O.C. PER D.O.T STD. 1527 MANHOLE WALLS -TO BE DESIGNED AND INCLUDED ON PLAN OR IN SPECIAL PROVISIONS 0 CONCRETE SUBSTRUCTURE TO BE CONSTRUCTED OF CONCRETE HAVING COMPRESSIVE STRENGTH OF NOT LESS THAN 3500 PSI ® 28 DAYS z NOTE: 1. PROVIDE CA -6 AGGREGATE BACKFILL AROUND MANHOLE TO SUBGRADE ELEVATION IN PAVED AND DETENTION AREAS. VILLAGE OF LEMONT STORM WATER MANHOLE FOR SEWERS LARGER THAN 42" 12/10/01 NO. LS -63 REV. 1 #5 © 6 CASTING AS SPECIFIED 2 24" NOTE: 48" DIA. T =5" 60" DIA, T =6" PREFORMED MASTIC (TYP.) TWO ADJUSTING RINGS FOR 6" MAXIMUM ADJUSTMENT FLAT SLAB TOP FOR STORM MANHOLE 1. FOR PRECAST REINFORCING FOR FLAT SLAB TOPS FOR MANHOLES, CATCH BASINS, AND VALVE VAULTS. SEE IDOT STANDARD 2354 -1 T VILLAGE OF LEMONT FLAT SLAB MANHOLE TOP 12/10/01 NO. LS -64 REV. 1 5 b 2' SUMP NOTES: MANHOLE CONE TO BE OFFSET OVER RESTRICTOR 1/8" THICK STEEL PLATE WITH ORIFICE OPENING AS REQUIRED ANTI SIPHON VENT CATCH BASIN TRAP, NEENAH R -3700 EAST JORDAN 5974, RESOURCE SNOUT OR EQUAL MANHOLE OR CATCH BASIN WITH RESTRICTOR PLATE 1. ORIFICE PLATE IS TO BE CURVED TO CONFORM WITH WALL OF CATCH BASIN 2. PROVIDE GASKET BEHIND PLATE AND CAULK PERIMETER FOR WATERTIGHT SEAL 3. PROVIDE 3/8" ANCHORS AND BOLTS TACK WELDED TO ORIFICE PLATE 4. RESTRICTORS MAY NOT BE INSTALLED IN FLARED END SECTION VILLAGE OF LEMONT STORM WATER RESTRICTOR 12/10/01 NO. LS -65 REV. 1 REAR DRAINAGE SWALES SIDE SWALE OR CHANNEL REAR SLOPE TO LOWER LOT DRAINAGE DIVIDE PROTECTIVE SLOPES eo °°oe oo°o° °°oo a ° ° og0 000 0 0 0 2ovogoe0 0 o °1 oaoo °°pa° 0 0 0°0 0 0000° :040 0 000e000 a°0......p °o0 °a aoogagag °o;as - °O°O°O °O°OO ° °O °Dr 4 4- 4-- / REAR DRAINAGE EASEMENT RUNNING TO PROPER OUTFALL 1 j/ PROTECTIVE SLOPES GENTLE CROSS SLOPE ogog ;. ^B 00 DRAINAGE DIVIDE REAR SLOPES TO DRAINAGE EASEMENT SIDE SWALE OR CHANNEL UPPER STREET UJ w w • NOTES: 1. MINIMUM 2% SLOPE 2. MAX. 25% (4:1) I �► I� XI � ' V ' • j 4 w w fl REAR LOT LINE DRAINAGE VILLAGE OF LEMONT TYPICAL RESIDENTIAL GROUPING 12/10/01 N0. LS -66 REV. 1 NORMAL WATER LEVEL MINIMUM 12" WIDE AREA SLOPED AT 2% TOWARD THE POND FOR DRAINAGE AND SODDED 18" ABOVE NORMAL WATER LEVEL 36" BELOW NORMAL WATER LEVEL 2:1 SLOPE TO MAXIMUM DEPTH OF 15 FEET. MINIMUM 25% OF POND AREA TO BE 11 FEET DEEP IN CENTER HIGH WATER LEVEL i��11�IIFIIFII' 12 FOOT WIDE SHELF SLOPED AT 4% TOWARD SHORE RETENTION PONDS GEOTECHNICAL FABRIC FOR RIPRAP NATURAL "LEMONT" TYPE STONE (MIN. 18" DIA.) AT 2:1 SLOPE ARRANGED SO AS TO ENABLE A PERSON TO CLIMB OUT OF POND. THE INITIAL COURSE OF NATURAL STONE SHALL BE EMBEDDED A MIN. OF 9" OR GROUTED IN PLACE TO PROVIDE A FOOTING FOR THE SHORE LINE PROTECTION. 4' MAX. DEPT ''')MINIMUM 12" WIDE AREA SLOPED AT 2% TOWARD THE POND FOR DRAINAGE AND SODDED 4:1 MAX. SODDED SIDE SLOPE NOTES' PROVIDE UNDERDRAIN LOW FLOW PROVIDE 2% MIN. SLOPE SOD BOTTOM. CONVEYANCE. DRY BOTTOM PONDS VILLAGE OF LEMONT TYPICAL DETENTION POND 12/10/01 NO. LS -67 REV. 2 I CATCH BASIN TYPE C REV. 1 I CATCH BASIN TYPE C § in VILLAGE OF LEMON1 E ■e z ! | gi NO. LS -68 • 0 § K. , ■ * ! • i ! | I. . Z ° m / ■! o CV I ■ K I | t f �! !! i | 11 • | 4 • 1 i ©-|4 s -..■ • 4. k Ili i ! ; 5 \ ■ ■ a ¥ I | � \ «\ - - . / - • ; mi s !| ® ■ W § > la _ g 41.4 ■ I 1••• } | On __,_ _.m cc Z L.1 ( }C o }�} H H I , 1 1 &| _ ®z`Ep\ \\[u42 /p {! 11 : ■ I— a_ w ' t551±SE$ s ... :MONT GRATING FOR CONCRETE FLARED END SECTION w W W NO. LS -69 01 T-3 e 44y0 It ° b r g 0 i = ° ii Si GRATING FOR CONCRETE FLARED END SECTION (FOR 300 mm 112-/ 1350 mm 154 "t PIPE) (shoot J of 21 r 1 6Q� C Q VILLAGE OF L gezluDN061 0010 'P101 :/111 9i W •4401 6A-.1101 tl'2 u0IS46WIp 04040000 6.0 -.91 W 501 im u 4 \ F (10aA1 mini no 40 '41616.1-.51 0 29'1 rt F _61 _' o p g v°m 6.9 -.n W 0S'1 • mica 40 1,D00tlx y I $y a.. d+°° al N ° a //J ~ �r a� , C 0 r p1 : Vx'x9600Y1100. r 0• 2 d o. , _ \r .xe•ii 0 « o r 4, 40 'd6 Y iA j N�� g R_ E .-n °Q -Z Ih� ° ° ° 8w 0 L 0G ��5 [ °Fc �gg _ i- d z° b'� E .5d 01 0` 0 t$S '8ays$ l9Exi0510109L09l IISII 1 I1Si1.�'a 10 '4161 /121515 i0 ov E , 02 ]c Do« 1)^ mh mim 5 b0�e3c LL Vi Skye. . �.yg /ZS °.d. T°c°y-L sl 1 TT ° F6N 3)I W C °fslL °C D•• °0'F I ( 1951 ° c Y 132.211 t °c it; Z o£'Sng a 5«`° �¢ 90 ii ii ;267. 4. 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REINFORCING OF RESTORED PAVEMENT MUST MATCH EXISTING. Z 0 O U 0 0 w cci W CC w Z r- W W w U W w ° O Z ZO (._> Q 0 w 0 U CC } ZO �wOw1-O w¢ Et = Zd0 0 0 I- CC ZZZ>O(nZZ ~Y (r OHO 0 °WEL ww 0 ° z al- w1- - W a (n(750-/ Z Ug wm� t-0 0 0 Ow ¢ Y Q Oi 2 (J _ o o a O • viZ F �a >O 12t-f2 Z C5Y=Y U1 ° Z • a i Y CL sL X < X Lo Ct Z z ° W o d a ora mo 3 w w 1- 3- Ir w w 3- r- u) O w (w/i F- w W , a0 =~_COQ~ 03 °r 0o 0 4 0~ ww O w U 0- M w w X D w cvZ (Y O a Z 0 ~ m H J 0 Q w Z_ W W (n 1- QQ H ZU (nO Za 1-U OW wwa =w 00 0 Q a w JO 3 0 0C 0 ~mOU1~ Z J w d wC Q3- o a r- JZ¢ v» nr�� 22 CC cl - I- Z_ O cc m w O a¢ O O Y FO Q Z Et X E< QJ Jo 3-3-I3- oU nzzO� �_ < J Z L N a o w = a Z w d U Ocwn (Y F- =Q m�N3O[n �m uJ0 w ¢ w N LW a H w Inc!) J Z Q ow Z 4 Cs1 WI K j Z a X Q= zz �� c, N =DEw��° 0�� a�a5mo w V r w Q W w OU J O f` V - Q (L N Z m Z oz o0 V o a X00 w ¢ 0OU Ww (Ym wZLw 20- z< C) C) (Y !Y Z� wF- F- wJ 0 w=�¢ = -J ~JOOOD a ra 00 E_r - �CC w� �J0 co O ('- w 0 U a= w= O!n o U)CDO3 ¢ >U w.W 1 I ri a ui co N m N 0 i7 co N co co MAXIMUM TRENCH WIDTH W +8" 0 0 Z 0 0 w 0 C w (- = W Q W w � Z_ In Z Z H- Z 0 J VILLAGE OF UTILITY STREET NO. LS -70 vim [•. /C T �[ww g /c , q/C \ E [°161LL] [ ww OC] „91 /l 1 „9L /C l [wu+ZZ]_ [ww6Z] .9 /L „9 /l l [wwS6Z] .9/9 11 E E 'N 0 z C W ti J V O N K 4 0 LC N E� E\ n � 5 z N N -J \ J r LL 0 w O • °( Q n N 4 V w co z 4 f O N � 4 z a 0 4 g • . Ea o o La L7 O5- z z W N Q f Q a V r O J $ Q w < z - z f 3a z z G w 0] roN O O O N 0 w w 6 N 0 O 4 V VILLAGE OF LEMONT TYPE "C" GRATE w cc NO. LS -71 r 0 0 W < 0� 0 ° E ■••■ [wW9L ] .L -- -- E [wWS9L] „Z /L 9 — — E [u a L]„H /L d r[..9,4] ,b /£ ; N 30" [762mm] [WWOCC] [W W6LZ] , 11 - ( LOGO DETAIL W NF-32810011 WAS 3281T12 E E N 4 1/2" [114m 28 1/4" [718mm] Cu w Z o <ZCu" 8 F 9 z el 33 or 05 -26 -2000 9 9 6 CAD DWG. REF: 3281000.DWG -2 VILLAGE OF LEMONT CURB BOX 0 NW CY W p W NO. LS -71 [wwCCL) .6Z 7 tww£9a] ,.6L E E a E N� [ww£L] „Z /L —' [ww£e] .a /t 26 1/2" [673mm] RAD. -- [ww9l] „B /9 fu-9C] .f [wwo6Z] .t /£ II- [ww£B8] „6L E z E [ww£L] .4/ i• ,,f• L En ENGLISH AND [METRIC]. ALL DIMENSIONS ARE SHOWN IN CAST GRAY IRON ASTM A -48, CLASS 35B z E N N 1/2" [13mm] RAD 3/4" [19mm] LETTER' 18" [457mm] R [ww9C] „9/9 — [wwtS] ,.Z 0 CN N CC Ll E e e6 8 3 :a CAD DWG. REF: 32812001.DWG -6 OF LEMONT W J J_ NO. LS -71 d 0 N b/£ z WAS 2015 717 ro 0 i e: (I) OPEN PICKHOLE (4) ENGRAVED FISH 0 0 a 0 CO LLI J � O O W CD _ < < J UJ Z > W ce NO. LS -72 [wwLeg) ,9 /L ZZ [wwgz) .l 6 LUGS @ 60' E E N [wwL65] ,Z /L CZ [w -gLB] Sf E ry W 0 0 � M �< UO LJ Wpj z� W Q a� Oz z TNT Vey z 00 0 �n c� zrz V d J Om Q J z Q _ Z j F F z 21 CAD DWG. RE VILLAGE OF LEMONT w W w w w NO. LS -73 0 PHOTOCELL STREET LIGHTING N I- < > O J a Ui O ° M CC Zj▪ 1 I �° LL n J JMb g 0 Uw z a ,_ZOJ JN` W 0_w o r Ow ° Y Z 0 a E 17 J U . H N W r • O ° w Z Z ° M M a w Q Z U a a O (n J 0 ~» m w m J J CD Cr) mw�wM1 — C2 -al w L4w3ZwOZ�uP¢ - �o <JaOVO�, (3=,w CO z -5i w0 Ld m U U = ° Z - = C7 J °° < < Z W U_ a Z J WO w 00 J H H z l._0_ 0 Z w0 =O z° 0a a1(n WwoMoa_ owI ((j)w a�owm�U 0 �IV UJ C� Vw Q¢ C�jww U¢oO��wwUm ci Z J Z30 O \m w I-- CC Z=- UJOOwaJ w(yJJ ioa > >�� °�° VmmIwoozmoa�.za O zzO �N0 =wmm ID wW� \ =OU N M(=i�" -' U� 0 a° F- p U W Vl U 1- m W 01 CO ° H 0_ CO CC t-0'NZ a W\ 2 Qa I- W Jt J Z 0080,E: w O w 0 3 0 a w U U w W° J Z a Z w O J J 3 J Z Wu_ W Z a 0 a ° ° m0oo °aooOmr mo =w Q a W N= a a U a f- U U 7 0: 0 1] U N r� 8' BRACKET 0 w Cr CL CABLE ENTRANCE w Z 0 o 0 J z J w U aa0 CO w W am J w w > ¢Zw a (D z 0 z 00 ¢a U COURSE GRAVEL Z 0 LLJ J VILLAGE OF STREET LIGHTING th w NO. LS -80 O N 0 Z 0z as O w 0 Z w- a0 0 0 W 2 F- U O W z z 0 0 ° W °o O O a 1H013H DN11NrI0 N ,SZ 2103 1VNIINON 1H0131-1 3104 w > O O m Z a J ° Z Z < z 0 a F- in ¢ 5E V N co 5 N 0 a U O U° U W Z o a Z W< O J o W a H U N a W 0 J a or_ II O 0 Y I Z 0 z aaa Z 1a O(n m �t Flo ow a z - 0 0 J N 1 30 0 0 ' N I IN ., 9' = 0.) z CO (...2 _ 00 0 U PAVEMENT CROSSING 0 Q a ° U W U r ^0 Z w U W O Z 0 Z 0 10 J 0 ow0wco m0 OF(AUaJOa 304210 HSINI3 Z Z Z a N XU aa 3 w > ° c O I- J W a V CO a s a H N a > a� X ¢ wM 01 ,9 CD U w O w 01- 011 w(^ 000 DJ03 Q EL Z N z O > 0 1 0 w o 0 a • z a 0_ O J • <00:0 X 0 NIN „9' °Z Zo (n 0 N U UNIT DUCT TRENCH BURIAL 23' STREET LIGHTING STANDARD CABLE BURIAL DETAIL 4 J SECONDARY SERVICE CONNECTION PEDESTALS FEATURES: • 14 gauge 235 mill galvanized steel with 12 gauge hasp • Powder coated paint • Stainless rivets • Safety ribs provide strength and more secure unit • Rounded front • Recessed pent: took feature available upon request. • A qu2Cdy product for 40 years CAT 0 W T B H COMMENTS 202-3 001.3 7 -112 T-112 7.112 7 -1r2 205/8 20-5/8 205/8 20-5/8 38 38 Stand d brit Sydnono Knot:Nut 202-30 202$CP149 7-1/2 7112 21 2B 48 PeMefpdt +Svi4ii ikgKnodrout 204-38 10.1/2 10.1/2 21-1/3 18 38 S1andeo110112 x 10112 204.180 10.1/2 10.12 21.118 18 38 38 S1tibina Knodcad 20438CPH 10-112 104/2 21-14 i8 Pertalodr+SW:v ina Knockout 203 014 10412 104/2 15.3/4 13:1/4 28 208-44R 10-1/2 10.112 21 -1/8 24 44 VILLAGE OF LEMONT PAGE CONNECTION PEDESTALS OF 2 10/07 NO. LS -81 REV. 1 z 0 W J VILLAGE OF MOUNTING POSTS w re NO. LS -81 UTILITY SERVICE CONNECTION DRIVEWAY in ALLEY 30' 25' CLEAR AREA WHERE NO SHRUBS MAY EXCEED 2' IN HEIGHT, AND NO TREE BRANCH MAY BE LOWER THAN 8' IN HEIGHT LIGHT POLE PERMITTED TREE LOCATIONS ...*----WELL DEVELOPED CROWN STRAIGHT TRUNK 4' MULCH STAKE, GUYS RUBBER RINGS 11= I�� I- IIeuEI PLANTING SOIL TREE PLANTING DETAIL NOTES: 10 TREES SHALL HAVE A MINIMUM TRUNK DIAMETER OF 2 1/2 INCHES MEASURED 12 INCHES ABOVE THE GROUND. 2. TWO TREES PER LOT WIDTH WITH MINIMUM 40 -FOOT INTERVAL SHALL BE REQUIRED FOR NEW SUBDIVISIONS. 3. PRUNING MUST BE DONE AFTER PLANTING. 4. PLANTINGS SHALL BE PER THE URBAN FORESTRY MANAGEMENT PLAN OF THE VILLAGE OF LEMONT. 5. TREE SPECIES PLACEMENT SHALL BE A STAGGERED PATTERN, SUCH THAT NO TREES OF THE SAME TYPE ARE NEXT TO EACH OTHER BOX ELDER, SILVER MAPLE, TREE OF HEAVEN, BIRCH, BLACK WALNUT, CATALPA, RUSSIAN OLIVE, FEMALE GINKO, OSAGE, ORANGE, APPLE, MULBERRY, COTTONWOOD, POPLAR, ASPEN, CHERRY, PLUM, WILLOW, ASH, ELM, PINE, SPRUCE, FIR, AND HEMLOCK ARE PROHIBITED. VILLAGE OF LEMONT TREE PLANTING 12/10/01 NO. LS -90 REV. 2 PAVEMENT CURB MAIL BOX 12" MIN. FROM CURB OR GRAVEL SHOULDER 4 X 4 WOOD POST •. THE MAIL BOX MUST BE PLACED SO THAT IT IS ACCESSIBLE FOR THE DELIVERY OF MAIL FROM THE POSTAL CARRIERS VEHICLE. • SAFETY NOTE: PRIOR TO ANY DIGGING WITHIN THE PARKWAY, PLEASE HAVE ALL UTILITIES LOCATED AND MARKED (WATER, SEWER, GAS, ELECTRIC AND TELEPHONE). 414 .. • CALL VILLAGE OF LEMONT JULIE AND DEPARTMENT OF PUBLIC WORKS 1- 800 - 892 -0123 1- 630 - 257 -2532 PRIOR TO INSTALLATION VILLAGE OF LEMONT MAIL BOX 12/10/01 NO. LS -91 REV. 1