Each street shall be graded, drained, constructed, and surfaced in conformance with the standards contained in
Table VII-I of this section, modification may be required however, because of soil,
topographical and other natural conditions. All street improvements
shall be appropriate to the type of development anticipated and durable
under use and maintenance contemplated for such streets. All street
bases and subbases shall be inspected before the paving surface is
applied.
Portland cement concrete sidewalks shall be installed as required
in Section VI and in areas around and leading to schools, parks, and
shopping areas. Sidewalks shall be at least four feet wide in residential
areas and five feet four inches wide in business areas. All sidewalks
shall be constructed of concrete four inches thick with thickness
increased to 5 1/2 inches where sidewalks are crossed by driveways
and areas of unfavorable soil. A sand or gravel base at least two
inches thick may be required.
Whenever practical telephone and electric utilities shall be
underground. When utility lines for telephone and electric service
must be carried on overhead poles, such utilities shall be placed
in rear lot line easements or designated side lot line easements.
Where telephone, electric, and gas service lines are placed underground
entirely throughout a subdivision area, conduits or cables shall be
placed within easements or dedicated public ways in a manner which
will not conflict with other underground services. Further, all transformer
boxes shall be located so as not to be unsightly or hazardous to the
public. All underground utility installations which traverse privately
owned property shall be located in recorded easements.
The subdivider shall design and construct a storm drainage system
adequate to handle maximum potential flows of water drainage from
the subdivision or passing through the subdivision without causing
hazard for life or property within the subdivision or surrounding
land areas. All storm systems shall be designed and constructed according
to the preliminary plat and shall consider the appropriate streets,
storm sewers, roadway ditches, grassed swales, natural watercourses,
catch basins and inlets, as may be required. All such facilities should
be complimentary in design and construction. In general all areas
shall be required to install storm sewers.
(A) Natural watercourse. Whenever practical natural open drainageways
shall be utilized as part of the subdivision storm drainage system.
Whenever a natural stream or other man-made important surface drainage
course or agricultural drainage tiles are located within a subdivision,
the subdivider shall dedicate an adequate easement along each side
of the stream or tile for purposes of widening, deepening, sloping,
improving, or protecting the stream or tile for drainage or floodwater
retention.
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The filling, alteration, widening, or any other restriction
or alteration of a natural stream and flood basin shall be permitted
only as shown and approved on the preliminary plat. In areas where
stream slopes exceed 12%, such slopes shall either be graded, stabilized
by riprapping, or some sort of planting or shall be dedicated as a
natural easement.
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(B) Drainage ditches and swales. Where roadway ditches or swales are
permitted such ditches or swales shall be contained within easements
at least 10 feet wide and the drainage shall be improved as follows:
(1)
With grades to 4%, ditches may have sod bottoms and banks.
(2)
With grades from 4% to 8%, ditches or swales must have ditch
checks.
(3)
With greater than eight-percent grades, ditches or swales must
have rip-rap or be paved.
(4)
The filling, alteration, widening, or any other restriction
or alteration of a roadway ditch or swale shall not be permitted without
prior written approval of the Village Board.
(5)
No shrubbery, fence or other such structure shall be planted
or constructed in or over any drainage ditch or swale in such a manner
which would impede the flow of water and storm runoff through these
ditches and swales.
(C) Storm drainage structures.
(1)
Culverts. When allowed, pipe culverts may be used. The minimum
length of culverts shall be at least equal to the distance from edge
of shoulder to edge of shoulder, plus six times the vertical distance
from the edge of should to the flow line of the culvert. No culvert
shall have a diameter of less than 12 inches. In no case shall driveway
culverts be less than 20 feet in length or more than 24 feet in length
without a variance from the Village Board.
[Ord. No. 04-06, 9-27-2004]
(2)
Bridges. All bridges and culverts having a span of more than
10 feet shall be approved by the Bridge Engineer, Department of Public
Works and Buildings, Division of Highway of the State of Illinois.
(3)
Storm sewers. The sewer system shall be designed by the Rational Method, with self-cleaning velocities as follows: (See Article
VI, Division VIII.)
(a)
That part of the system which serves as main or terminal collectors
shall be of sufficient capacity to carry the maximum stormwater flows
which may occur in a ten-year period.
(b)
That part of the system which serves as lateral collectors,
and which can readily be augmented by future additions, shall be of
sufficient capacity to carry maximum stormwater flows which may occur
in a five-year period.
(c)
The engineer shall select coefficients of runoff based on the
types of development anticipated in all parts of the watershed affecting
the drainage structure. Information regarding future development of
the watershed shall be obtained from the Planning Director.
(d)
The system shall include all necessary appurtenances such as
inlets, catch basins and manholes as may be required for proper operation
and maintenance.
(e)
Where the main storm sewer serving a subdivision can be expected
to carry a substantial amount of stormwater from adjoining lands higher
in the drainage area, and where the runoff from these lands can be
expected to increase in the future because of more intense development,
the developer may be permitted to substitute for such sewer an open
ditch. Such ditch shall comply with grading, seeding, and sodding
specifications of this Code, and such ditch shall be located on a
drainage easement of sufficient width to permit its proper maintenance
and to allow the eventual construction of an underground storm sewer
adequate to serve the entire drainage area above the subdivision.
(f)
All storm sewers shall be at least 12 inches in diameter and
shall be of material and construction approved by the Village Engineer.
(g)
All materials for the construction of bridges, culverts, storm
sewers, catch basins, manholes, inlets and other facilities shall
be approved by the Village Engineer.
(4)
Oversized storm sewers. If greater than twenty-four-inch diameter
sewers are required to handle the contemplated flows, the cost of
such larger sewers shall be shared between the developer and the Village.
The developer shall be responsible for the cost of furnishing and
installing a sewer of an appropriate size for his development, and
the Village will be responsible for the incremental increase in cost
to install the larger sewer.
Dams for water impoundments, pools, ponds, reservoirs, and small
lakes shall be planned, designed and constructed under the supervision
of a qualified engineer and shall meet the approval of the Department
of Conservation of the State of Illinois.
(A) Earth dams. Minimum requirements for earth dams shall be as follows:
(1)
Foundations. A minimum thickness of at least 24 inches of an
impervious material is required for dams up to 12 feet. The entire
area in which the dam is to be founded shall be free from all topsoil,
roots, vegetation, stones, rock or debris, and shall be plowed and
roughed up to provide an interlocking tight bond with the new fill.
(2)
Cores. Cores should have a width of 30% to 50% of the water
head and shall be constructed of materials which will not lead to
core failure and leaks.
(3)
Crest. The crest shall be at least 10 feet wide to allow adequate
space for maintenance equipment and shall have sufficient height above
the water surface (freeboard) to prevent waves from going over it.
(4)
Slopes. The upstream slope shall not be steeper than three feet
horizontal to one-foot vertical and shall be sufficiently protected
from ice and wave action by an impervious earth blanket, riprap, or
concrete. The downstream slope shall not be steeper than two feet
horizontal to one-foot vertical and shall be protected against erosion
by a growth of permanent sod.
(5)
Drainage. Sufficient drainage and reverse filtering facilities
to insure the permanent stability of the dam and its foundation shall
be provided. Proper precautions shall be taken to prevent any seepage
along drain pipes running through the dam.
(6)
Spillways. Facilities for handling the maximum normal surplus
waters shall be provided, together with a sodded relief spillway constructed
18 inches above the normal water level. Proper precautions shall be
taken to prevent seepage along any of the spillways facilities constructed
within the dam.
(7)
Materials. All materials, equipment and construction methods
shall conform to the requirements of the American Association of State
Highway Officials Specifications for Highway Bridges and the Standard
Specifications.
(8)
Test and analysis. Results of the following tests and analysis
shall accompany all plans for dams:
(a)
Tests of the foundation material showing compressibility, shear
strength and permeability.
(b)
A complete stability analysis of the proposed dam using any
of the available analysis techniques.
(c)
Permeability tests of the proposed core materials.
(B) Masonry dams. Minimum requirements for masonry dams shall include
provisions to insure proper foundation bearing and for the prevention
of slippage, excessive seepage, piping and scouring. The structure
shall be designed by a registered structural engineer. The design
and construction requirements shall conform to the American Association
of State Highway Officials Specifications for Highway Bridges and
the Standard Specifications.
(C) Existing dams. An engineering report shall be submitted to the Plat
Officer on all existing dams within a proposed subdivision. Any dam
found to be structurally unsafe shall be reconstructed or reinforced
in accordance with the above standard.
The subdivider shall install street lamps along all streets
of a design compatible with the neighborhood and type of development
proposed. Such lamps shall be placed at each street intersection and
at such interior block spacing as may be required by the Village Engineer.
The subdivider shall install at the intersection of all streets
proposed to be dedicated, a street sign of a design specified by the
Superintendent of Public Works.
[Added 5-23-2022 by Ord. No. 22-08]
Fences are allowed in all zoning districts. They may be used
to indicate boundaries, to confine and/or to exclude. The following
restrictions shall apply:
(A) Privacy
fences are allowed in residential districts from front setback (front
of house) line to back of property and along the property sides.
(B) Chain-link
fences are allowed on all properties.
(C) Front
yard fences are allowed in residential districts from the front setback
line to the right-of-way at the street and must be "see through."
There are no height limitations.
(D) Fences
may be placed on property lines; however, a setback of at least six
inches is suggested.