O-36-08 06-23-2008VILLAGE OF LEMONY
ORDINANCE NO. ~~~ le~
AN ORDINANCE AMEDING THE LEMONY UNIFIED DEVELOPMENT
ORDINANCE OF 2008, LEMONY, ILLINOIS
ADOPTED BY THE
PRESIDENT AND BOARD OF TRUSTEES
OF THE VILLAGE OF LEMONY
THIS 23~ 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 23~d
day of June, 2008.
~l,
ORDINANCE NO. ~~_
AN ORDINANCE AMEDING THE LEMONY UNIFIED DEVELOPMENT
ORDINANCE OF 2008, LEMONY, 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."
17& 04.020
Add a new paragraph E to X17.04.020 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."
&17.04.110.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 aland/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:"
&17.04.110.D
In paragraph D of X17.04.110, 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."
&17.04.120.B
Change paragraph B of X17.04.120 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."
§17.04.150.D.c
In ~17.04.150.D.c change the word "determent" to "detriment"
Table 17-06-01
Change Table 17-06-O1 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."
17.06.030.H
Change the first sentence of paragraph H of X17.06.030 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:"
&17.11.150.E.1
Change X17.11.150. 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."
~17.11.200.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).
§17.11.200.B.1
In ~17.11.200.B.1 change sentence to read:
"The electronic message center shall not comprise more than 25% of the sign area."
17.18.040
Starting in line 4 of X17.18.040 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."
Chanter 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 X17.01.060 of the
Unified Development Ordinance.
&17.20.040.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."
17~ 20.060
Following the introductory sentence to X17.20.060 ("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."
&17.26.110A.1
Change Section ~17.26.IIO.A.1 to read in its entirety as follows:
"1. 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.
Zonine 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 LEMONY, COUNTIES OF COOK, WILL, AND DU
PAGE, ILLINOIS, on this 23th day of June, 2008.
Debby Blatzer
Peter Coules
Cliff Miklos
Brian Reaves
Ron Stapleton
Jeanette Virgilio
AYES NAYS
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V
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V
PASSED ABSENT
5
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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 Pape
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
Section 300.0 Definitions
For the purposes of this Ordinance, the following definitions are adopted:
300.1 Accessory Structure Anon-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 cone-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
300.17 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.
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 (SERA) 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
(SERA).
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,
591 G, 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, 591 G,
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
300.41 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 orcross-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
300.54 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.
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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
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
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.
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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 anon-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.
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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.
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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.
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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;
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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
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 floodway
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.
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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
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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;
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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
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
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.
802.3.14.31n 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
802.6 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 Engineer's Review.
The following activities may be permitted without a licensed professional engineer's
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 outtalls, 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
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
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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 Outfall 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
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
1003.2.2.2 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 ornon-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
1003.3.7.3 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 anon-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
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.
1.003.8 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. Anon-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
L
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.OThe 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
n
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 shalt 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 -2
day of June, 2008.
Charlene M. Smollen, Jerk
Approved by me this 23 ~d day of June, 2008.
Attested and filed in my office this ~ ~~d day of June, 2008.
Charlene M. mol en, Clerk
57
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
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/Ezisting 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
~'
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)
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.
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 REQUIItEMENTS
1 1 ~ i
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:
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)
vnoirc
i
FLEXIBLE PAVEMENT SECTION
SCHEDULE
A
B
C
D
E
F
G
H
I
HOT MIX ASPHALT BASE COURSE, N50
BITUMINOUS MATERIALS PRIME COAT (0.10
HOT MIX ASPHALT BINDER COURSE, N50
TACK COAT (0.15 GAL./ S.Y.)
HOT MIX ASPHALT SURFACE COURSE, MIX
PORTLAND CEMENT CONCRETE CURB AND
TOPSOIL (4" MINIMUM)
SUBGRADE GRANULAR MATERIAL, TYPE B, 4"
GEOTECHNICAL FABRIC FOR SOIL STABILIZATION
GAL. /S. Y. )
C, N50
GUTTER (SEE DETAIL LS-2)
SEE STANDARDS LS-1B FOR PAVEMENT THICKNESS
12" 1" 6" TOP OF DEPRESSED
CURB
CLASS SI ~ a
CONCRETE 3"R °: 2"R 4
°a ~
3/4" PER FOOT
_. a-o- -~
~ a ° ° 12" a L~ 7"°.
°
TWO-3/4" X 18" SMOOTH
o ° ° °.. a`. DOWEL
~ ° ~ BARS WITH CAPS AT
~, ~ a a ~ EXPANSION JOINTS
~ a °a ° p °
a a °
° a
~ ° 12„
a ° o
a a ° MIN.
4" MIN. COMPACTED
,.
. - -
SUB-BASE COURSE
STANDARD BARRIER AND DEPRESSED CURB AND GUTTER
10" 8'.
1 3/4"
CLASS SI 3"R
CONCRETE ~- a
3/4" PER FOOT 4"R a 3"
Q ~ ° a .° °
<- ° ;
~ ° d 7W0-3/4" X 18" SMOOTH.
~ d a a s a ~ a. ® DOWEL
a .4 '° o ° ~ BARS WITH CAPS AT
o~ ,. m a EXPANSION JOINTS
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
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TRANSITION FROM TOP OF
CURB TO TOP OF SIDEWALK
VARIES
A
R. 0. W
a DEPRESSED CURB
~ B
0
~, 3/4" EXPANSION ,~
JOINT FILLERS ,
R.O. W
Y
Q
B ~
0
15'R UNLESS 3/4" EXPANSION
OTHERWISE JOINT (TYP.)
NOTED
DEPRESSED CURB AND GUTTER * NOTE: SIDEWALK WIDTH IN
q COMMERCIAL AREAS SHALL BE
SIX FEET.
3/4" EXPANSION -f
JOINT FILLER
SECTION A-A
3/4" EXPANSION
JOINT FILLER
4G~ .
. .. <: .
,:,~
2" AGGREGATE BASE COURSE 4" AGGREGATE BASE COURSE
5" PCC SIDEWALK 8" PCC (FOR ALLEY RETURN)
SECTION B-B
* SEE STANDARD LS 6 RESIDENTIAL FOR
DRIVEWAY PAVEMENT COMPOSITION
WALL
%~
L
-\ ,~
B
K
J
-~- C -- D ~ f- E -~-
WALL TO INTERLOCK INTERLOCKING I
Er F G H
MODULE MODULE
X = STALL NOT ACCESSIBLE IN CERTAIN LAYOUTS
ON STANDARD U. S. VEHICLE STALL ANGLE*
DIMENSIONS (FT.) 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.
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TREE LINE - -~
WATER MAIN `r ~
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CURB BOX ~'
SIDE WALK
~ ~ ~
RIGHT-OF-WAY
2-#8 THRU 12"
2-~10 FOR 14" THRU 18"
SPECIAL DESIGN FOR
LARGER THAN 18"
NOTE 5
NOTE 4
NOTE 4
VERTICAL BEND
PLUGGED TEE
HORIZONTAL BEND
MEGALUG 1000 OR 1000SD SERIES RESTRAINING
SYSTEM SHALL ALSO BE REQUIRED AT ALL THRUST
BLOCK LOCATIONS, AS SUPPLEMENTAL PROTECTION
TEE
NOTES:
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"XO'-6 STEEL PLATES. ~~
5. COAT EXPOSED PORTION OF BARS WITH BITUMASTIC COMPOUND. ~/II ~ ~ ~
DEAD END
"\A/A TC D" nil
MIN. 4 1 /2" INCH O
5' FROM
PUMPER
NOZZLE TO
BACK OF
CURB
N
1
BREAKAWAY FLANGE, ~
APPROXIMATELY 2"
ABOVE GROUND
INSTALL LAYER OF
FILTER FABRIC
OVER DRAIN FIELD
1 /3 YD.3 MIN. WASHED
GRAVEL DRAIN FIELD
(2' MINIMUM DIAMETER
AROUND? HYDRANT)
_ a.
_ 4
'.
A vau ~e^
PROVIDE CONCRETE BASE AND
THRUST BLOCKING AGAINST
UNDISTURBED EARTH (TYP.)
MINIMUM 12" THICK
NOTES:
(2) 2 1/2 INCH HOSE NOZZLES
WORD "WATER" ON COVER
VALVE BOX (TYLER 664-S)
GATE VALVE
TURN LEFT TO OPEN
~ CONCRETE THRUST
BLOCK (SIZE
DETERMINED FROM
_ THRUST BLOCK
DETAILS)
0 HYDRANT BRANCH
I I I I I 6" MINIMUM DIAMETER
STABILIZER
ii
' ~: :a
a
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
A
PLAN
6" 45' ELBOW WITH
WATERTIGHT PLUG
OR CONNECT TO
EXISTING SERVICE
TRENCH WALL
p w
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o ~~
o~
X ~ W p
Q U w
~ O ~ ~
I ~ ~
O ~ J
~ N ~
iF ~-- UNDISTURBED EARTH
SHAPE TO PROVIDE UNIFORM
UNIFORM BEARING
FOR 1/4 OF BARREL
CIRCUMFRENCE
/,
c ..
e/ \ / I
o~~~ \
a°~ v \ //
T. ~ i \\
a
t-~~~r MAXOIM WHENONECESSOARY TO BSECURE THAN
BEDDING IN UNDISTRUBED EARTH
STANDARD WYE - BARREL
SIZE TO BE AS CALLED
FOR ON PLANS. BRANCH
TO BE 6".
SOLID CONCRETE f
THRUST BLOCKING AGAINST
UNDISTURBED EARTH (TYP.)
MINIMUM 12" THICK
SECTION A-A
Section C-C Notes:
Dz shall be no smaller than
two {2) nominal diameters less
than Di , 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 {as shown).
Invert of elbow to be placed even
with the level of the bench.
Minimurri wall thickness "tN #or
for drop manhole:
o. 6 for cast-in-place concrete
b. 1/12 manhole diameter for
precast concrete.
Concrete for encasement shall be
3000 psi ~ 28 days, minirrium.
Manhole steps are omitted for
clarity.
Standard Drop Manhole ~P ~ o ~,~,~ ~ ~ °N
EN°IN86R1NG DSPAA?N6NT
10-°2 Local Serrer Systems lRR;SDO
ASTM C-923
Resilient connector
Between concrete
manhole and pipe
JBCCIUfI H-H
PRECAST CONCRETE OR RUBBER
COMPOSITE ADJUSTING RING (2
MAXIMUM), 6" TOTAL MAX. HEIGHT
NOTE: LIFT HOLES TO BE
LEFT OPEN AND COVERED
PREFORMED WITH FILTER FABRIC TO
MASTIC 2'-0' DI FACILITATE ROADWAY
DRAINAGE. (EXCEPT IN
COMBINED SEWER AREAS)
1'-3' ECCENTRIC CONE
SECTION OR FLAT TOP
PIPE FOR CATCH
~ ANTI NOTE: HALF TRAP
BASIN SIPHON REQUIRED IN COMBINED
r MORTAR VENT SEWER AREAS, WHERE
CONNECTED DIRECTLY
TO A COMBINED SEWER
NEENAH R-3700
a EJIW 5974
° RESOURCE "SNOUT" OR
ii EQUAL
0
z I
~
~
I MIN. NOTE: LIFT HOLES TO BE
N LEFT OPEN AND CONNECTED
TO
I
~
R
ACILIT
ATE
ROADWAY
~ DRAINAGE.
e
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a o o d ~
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.. ~
o as . < ~
e. < .e,~
z
`~ ~ FA1,20R6FINE
PRECAST AGGREGATE
CONCRETE BASE
ninT~c~.
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 N0. LS-71
' SEWER
1'-2" O 1'-2"
0
EXISTING OR
NEW SEWER
~~~
B ~ // \P. ~ ~ U I~ B
o ~~ iii
o
~ N \~ / I I S~BSRRUCTUREHOLE
~~
o U-----~---
i
PLAN
FINISHED GRADE
"~"~"' ' "'-""~" TWO ADJUSTING RINGS
FOR 6" MAXIMUM ADJUSTMENT
~ STEPS 0 2 -0
~ ~ 12" TO 16" C° z
o Q O.C. PER 5" N ~
~ ~ I. D.O. T.
~ ~ STD. 1527
aQ
~--
0
Q ~ ~ ~ r---MANHOLE WALLS
4'-0" DIA. TO BE DESIGNED AND INCLUDED
ON PLAN OR IN SPECIAL PROVISIONS
a
z
~ O s
~-
o -
~ I
CONCRETE SUBSTRUCTURE
° °° TO BE CONSTRUCTED OF
°~, CONCRETE HAVING COMPRESSIVE
n ° STRENGTH OF NOT LESS THAN
3500 PSI @ 28 DAYS
z
i z
SECTION B-B #4 @ 12"
NOTE:
1. PROVIDE CA-6 AGGREGATE BACKFILL AROUND MANHOLE TO
SUBGRADE ELEVATION IN PAVED AND DETENTION AREAS.
MANHOLE CONE TO BE
OFFSET OVER RESTRICTOR
1 /8" THICK STEEL PLATE WITH
OPENING AS REQUIRED
ANTI SIPHON VENT
CATCH BASIN TRAP, NEENAH R-3700
EAST JORDAN 5974, RESOURCE SNOUT
OR EQUAL
2' SUMP
MANHOLE OR CATCH BASIN WITH RESTRICTOR PLATE
NOTES:
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
MINIMUM 12" WIDE AREA SLOPED
A7 2% TOWARD THE POND
FOR DRAINAGE AND SODDED
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
18" ABOVE
NORMAL
WATER LEVEL
12 FOOT WIDE SHELF SLOPED
AT 4% TOWARD SHORE
RETENTION PONDS
HIGH WATER LEVEL
w
0
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Q
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GEOTECHNICAL
FABRIC FOR RIPRAP
NATURAL "LEMONY" 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.
~ "'fCIICIICI
Z ~,. ~~
g
MINIMUM 12" WIDE AREA
SLOPED AT 2% TOWARD
THE POND FOR DRAINAGE
AND SODDED
4:1 MAX. SODDED SIDE SLOPE
NOTES: PROVIDE 2% MIN. SLOPE SOD BOTTOM.
PROVIDE UNDERDRAIN LOW FLOW
CONVEYANCE.
RY BOTTOM PONDS
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SECONDARY SERVICE ~
CONNECTION PEDESTALS
~aTU~s:
• '{4 gauge 235 mill galvanized steel with 92 geu~ hasp
• Powder coa#ed f~
' Stainless mats
` Safety ribs provide strength ar~d mtxe secure unit
• Rounded front '
• Recessed pentafock feature available upon request.
A q~~Y Product for 4Q years
CAT# 1D W T g H GaMM~tVTS y
2023 DbMt= -1/Z 7•U2
M x0,518 20SJ8 38 Standard 1Jrx't
202~C t 7R -1/Z 20518 ZO•~18 98 5wi Knndcout
202.'9CPtiS ~«1i2 7•!12 Z1 ffi 4B Pan +S ' i Ks~arkast
20458 10-i !0.112 2i-i i8 38 S'~ndard !~ in x 10 ilx
zoo-sac ~ai>z iairz zi•:ra is as r~,~
2o4~.'iac•PH 10-112 10-!/2 2i-it8 i8 ' 39 Pentalxlc+swiri • Knodc~stE
2035PH 10.1/2 10-112 15.314 13-it4 28
2QB-44R 1Q-'iR 40•!12 21-i18 24 44
-,-'=r
ALLEY
0
10
30'
25' CLEAR AREA WHERE NO
SHRUBS MAY EXCEED 2' IN
HEIGHT, AND NO TREE BRANCH
o MAY BE LOWER THAN 8' IN
'`' HEIGHT
10'
LIGHT POLE
PERMITTED TREE LOCATIONS
P. ~/ `I 1/ Il -- CROW DEVELOPED
STRAIGHT TRUNK
4' MULCH
STAKE, GUYS
RUBBER RINGS
~~ PLANTING
N SAIL
-~~_n. „
12' 12'
TREE PLANTING DETAIL
VILLAGE OF LEMON T
TREE PLANTING
12/10/01 N0. LS-90 REV. 2
1. 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 LEMONY.
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.
UTILITY SERVICE