(A) Pavement.
(1) The width of the pavement shall be in accordance with the standards of § 152.011.
(2) The subgrade for all pavements shall be a soil bearing value of not less than CBR-4, as determined by the California Bearing Ration Test. Where, in the opinion of the Village Engineer, the CBR may be less than 4, the Engineer may require the developer to provide a laboratory report stating the CBR value of the subgrade in question. This work shall be done at no cost to the village. Where the CBR of the subgrade is less than 4, the developer shall submit a new pavement design to the Village Engineer for the Engineer's approval.
(3) Pavement width and crown.
Right-of-way | Width to Back of Curb | Crown | |
Primary or major streets | 100 | Two-24 feet roadways divided by a median strip | 3 inches |
Arterial | |||
Secondary streets | 80 | 40 feet | 5 inches |
Minor streets | 60 | 32 feet | 3 inches |
Non-arterial | |||
Cul-de-sacs | 60 | 27 feet | 3 inches |
Marginal access street | 40 | 20 feet | |
Frontage streets | 20 feet | ||
Paved cul-de-sac radii shall be 40 feet to back to curb | |||
(4) Pavement types:
Arterial Street | Non-Arterial Streets | ||
Base | Surface | Base | Surface |
8 inch Portland Cement concrete - *Section 420 with integral type curbs | 7 inch Portland Cement Concrete - *Section 420 with integral type curbs | ||
or | or | ||
6" Bituminous Base Course (MS 15.00) 2" Bituminous bindercourse, 1½" bituminous surface course CL-I* | 5" Bituminous aggregate mixture (MS 15.00) min 2" Bituminous concrete binder course, 1½" bituminous concrete surface course CL-I* | ||
* Reference to Standard Specifications Road and Bridge Construction
Note: No recycled asphalt allowed in surface.
(a) All Portland Cement Concrete Pavement shall have two applications of boiled linseed oil mixture, regardless of the season, as per Para. 48 of the state specifications.
(b) The I-11 bituminous surface shall be constructed in two operations. The binder course shall be constructed immediately after completion of the base course. The surface course shall be constructed one year after completion of the binder course and only after all base course and binder failures are repaired.
(5) Design.
(a) Street gradients shall be connected with vertical parabolic curves if the algebraic difference in grade exceeds 1.00%. Minimum length in feet of these curves for minor streets shall be 50 times the algebraic difference in the percent of grade. For arterial streets the minimum length shall be 100 times the algebraic difference.
(b) The minimum pavement grade shall be .50%.
(c) The maximum grade for arterial streets shall be 4.0%. The maximum grade for non- arterial streets shall be 6.0%.
(d) All streets shall be designed using a "positive drainage principle" where possible. No low points shall be allowed which would cause greater than eight inches of ponding in the event of a complete storm sewer failure.
(B) Air-entrained Portland Cement concrete combination curb and gutter shall be constructed as per State Specifications Para. 81. The design shall be of a rolled type not less than 18 inches in overall width, and not less than eight inches thick where curb abuts the road pavement. All curb corners shall have a radius of not less than 25 feet for all non-arterial streets and 30 feet at the intersection with all arterial streets.
(C) Air-entrained Portland Cement concrete sidewalks shall be constructed as per State Specifications Para. 89. The sidewalk shall not be less than five feet in width and four inches in thickness located one foot inside the right-of-way line.
(D) All handicapped accessibility shall conform to Illinois Administrative Code (latest edition) commonly known as the American Disabilities Act.
(E) Driveway approaches. Driveway approaches shall be the responsibility of the builder and shall be completed, inspected and approved by the Building Inspector prior to the issuance of a final occupancy permit. All driveway approaches shall extend from the edge of the road pavement to the lot line of the parcel and shall be constructed according to the specifications set forth in this division (D).
(1) Driveway approaches for residential or dwelling use shall be constructed in a manner and of a material equal at least to that of the proposed pavement in the public street adjacent thereto. If a concrete pavement exists for the paving in the public street, the owner may, upon written request, install a base of CA-6 100% crushed limestone eight inches thick and a black top surface of two inches, or an air- entrained Portland Cement concrete pavement in accordance with methods and material required in Para. 88, State Specifications. The width of driveway approaches for residential or dwelling use shall be not less than nine feet or more than 14 feet at the outer or street edge of the sidewalk.
(2) Lighting standards shall be prestressed and centrifugally cast concrete complete with butt base and shall have a water polish finish complete with bracket and one and one-quarter inch slip fitter and handhole. Heights of standard and length of bracket shall be as follows:
(a) Residential areas: Standard 23 feet with eight foot bracket arm.
(b) Commercial, industrial, and manufacturing areas: Standard 30 feet with the length of the bracket arm as approved by the Village Board.
(3) Luminaries shall be of the sodium vapor type or latest Commonwealth Edison acceptable. Size shall be as follows:
(a) Residential area: 175 watt
(b) Commercial, industrial, and manufacturing areas: 250 watt or 400 watt, as approved by the Village Board.
(c) Ballasts shall be of the constant wattage type.
(4) Cable on multiple circuit systems shall be net less than #8 wire and shall be buried at least 30 inches below finished grade. Cable shall be installed in a two inch galvanized rigid steel conduit with two inch fiber bushings where such cable crosses beneath existing or proposed pavement, driveways, or sidewalks. No underground cable splices will be permitted.
(5) Cable in individual service systems shall be not less than #12 wire with 600 volt insulation, type USE, style RR installed in direct burial not less than 30 inches below grade. Underground splices will be permitted at points of connection to the public service company lines.
(F) Grading of all lots within the village shall be accomplished in such a manner as to prevent ponding in excess of eight inches in the event of a complete failure of the storm sewer system. Grading of all lots shall be in accordance with the standards of FHA. Drainage easements will be provided in all cases where surface water from more than one lot are conveyed down a property line.
(G) Prior to the installation of public underground improvements including, but not limited to, sanitary sewers, and those proposed by utility companies such as gas mains and underground telephone and electric lines, street rights-of-way and any other lands, easements, or routes along which above mentioned improvements are constructed shall be "rough graded". "Rough grading" shall mean that the ground surface is brought to an elevation within two-tenths foot of the elevation proposed for topsoil spreading. Special consideration may be given by the Village Engineer and Public Works Superintendent to cases where the route of the underground improvement is in an area which will require substantial amounts of earth fill. This requirement shall not apply to individual house or building service lines.
(Ord. 1995-0-25, passed 12-26-95)