§ 152.066 STREETS.

   (A)   Street improvement standards. All grading, paving, surfacing, drainage structures or other improvements required or involved in the opening, widening, or expansion of any street, road, or public way shall be of such size, width, thickness, character, and type deemed by the County Engineer to be suitable and appropriate to the intended use and development; and consistent with the standards and specifications set forth in these rules and regulations.

   (B)   Curbs and gutters.

      (1)   The requirements of curbs and gutters shall vary in accordance with the character of the area and the density of development involved. In urban areas, curbs are necessary to control storm water runoff and to clearly define driving and parking areas.

      (2)   Curbs shall be required on all streets where the proposed net residential density of the subdivision exceeds four families per acre.

      (3)   Where residential lot frontages are less than 85 feet in commercial developments or where other similar intensive urban uses exist or are anticipated, curbs shall be required. The installation of curbs may be required on major,  collector, and local streets, if such construction is deemed necessary for public safety.

      (4)   Where curbs exist on abutting properties, their extension will ordinarily be required throughout the proposed subdivision.

      (5)   Where curbs are not required, adequate gutters shall be graded and protected by seeding or a hard surface may be required where the grade is such as may be deemed necessary by the County Engineer.

      (6)   Concrete curb and gutter, conforming to the Illinois Department of Transportation Specifications, shall be required.

   (C)   Pavement. Roadway pavement surface and base course shall meet the requirements as outlined in the following table, “Minimum Pavement Requirements,” for the various acceptable road types.

   (D)   Sidewalks. If the property subdivided is located adjacent to the corporate limits of a community, the Subdivision and Planning Committee may require sidewalks. If the subdivision is near a school or a commercial area, where pedestrian traffic would be high or when an official plan element intends sidewalks in a given area. In residential districts, sidewalks shall be constructed when required with the near edge of the sidewalk one foot from the property line. In industrial districts, sidewalks shall be constructed when required next to the curb. All commercial areas shall include spaces for pedestrian circulation. Sidewalks shall be constructed as follows:

      (1)   Residential, commercial, and industrial districts. Minimum width, four feet; minimum thickness,  four inches, except access driveway areas where minimum thickness shall be five inches.

      (2)   Shopping districts.

         (a)   Minimum width, four feet; minimum thickness, five inches.

         (b)   All sidewalks shall be constructed in accordance with the standard specifications of the Americans with Disabilities Act.

MINIMUM PAVEMENT REQUIREMENTS
BY ROADWAY CLASSIFICATION

TYPE

   All pavement types regulated by the Illinois Department of Transportation’s Bureau of Local Roads and Streets Manual and constructed in accordance with the Standard Specification for Road and Bridge Construction.

   A   Three inch bituminous (1-1/2" binder, 1-1/2" surface Class I) over eight inches aggregate base course, or its equivalent.

   B   Bituminous surface treatment (Class A-3) with eight-inch base course of compacted gravel or crushed stone base, for roadways without curb and gutters and eight-inch base course of compacted gravel or crushed stone base, for roadways with curb and gutters.

Roadway Classification	Pavement Type
Business District	By pavement design*
Collector Street (rural)	By pavement design*
Collector Street (urban)	By pavement design*
Industrial District	By pavement design
Local Street(Rural)	A, B
Local Street (Urban)	A
Marginal Access Road	A, B
*   Minimum pavement shall not be less than Type “A”.

 

   (E)   Alley pavement. All alleys, where permitted, shall be improved with a roadway consisting of not less than eight inches of aggregate base course type A or B when thoroughly compacted, and bituminous surface treatment Class A-2.

      (1)   Through apartment district blocks, not less than 20 feet.

      (2)   Through business and industrial blocks, not less than 24 feet.

(Ord. 0-2005.4, passed 11-8-2005)  Penalty, see § 152.999