Loading...
§ 154.133 CURB AND GUTTER.
   (A)   Concrete curb and gutter must be provided along the outside edge of all street pavements in all nonresidential subdivisions and in all residential subdivisions where the average lot width at the front lot line is less than 120 feet; and/or where the degree of slope exceeds 5%.
   (B)   Curb and gutter must be Type B-6.12, in accordance with State Department of Transportation (IDOT) highway standards or standards acceptable to the appropriate Road District Commissioner. See the figure below.
 
   (C)   The back of curbs must be depressed or cut in accordance with IDOT standards, subject to the approval of the Chief Subdivision Engineer when the final location for access to the public roadway for driveways, sidewalks and other paths is determined.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.134 IMPROVEMENTS TO AND ADDITIONAL RIGHT-OF-WAY FOR EXISTING STREETS.
   (A)   All existing public and/or dedicated streets abutting a subdivision must be improved to a standard established by the highway authority for the subject street.
   (B)   If the property abutting a county highway is to be subdivided or access is being requested to a county highway, the developer/owner must dedicate, at no cost to the county, sufficient land area to satisfy the county road’s right-of-way requirement, including corner clips required by the County Highway Department and/or applicable highway authorities.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.135 GRADES.
   Streets must have a minimum grade of 0.5% and a maximum grade of no more than 6%.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.136 HORIZONTAL CURVES.
   Horizontal curves measured along street centerlines must comply with the following minimum radii.
   (A)   Major and secondary streets. The County Highway Engineer is authorized to establish the minimum radius of horizontal curves on major and secondary streets.
   (B)   Collector streets. Horizontal curves on collector streets must have minimum radius of 300 feet.
   (C)   Local streets. Horizontal curves on local streets must have minimum radius of 200 feet.
   (D)   Other streets. Horizontal curves on streets other than major, secondary, collector or local streets must have minimum radius of 150 feet.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.137 VERTICAL CURVES.
   Vertical curve lengths must comply with IDOT’s Bureau of Design & Environment Manual.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.138 REVERSE CURVES.
   A tangent of at least 100 feet in length must be introduced between reverse curves on local streets. A tangent of at least 300 feet in length must be introduced between reverse curves along all other (nonlocal) streets.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.139 PAVEMENT MATERIAL AND CONSTRUCTION.
   (A)   Asphalt pavement must comply with IDOT Standard Specifications for Road and Bridge Construction for bituminous concrete binder and surface course superpave and any special provisions applicable to IDOT District 1 standard requirements.
   (B)   All subdivisions must have pavement designed to the soil conditions actually found on the site in accordance with current IDOT design policy.
   (C)   Collector and local streets must comply with the cross sections of Appendix A. On major streets, secondary streets, county highways and developments intended for industrial or commercial use, projected traffic data and special uses must be submitted to the Chief Subdivision Engineer for evaluation, who has the authority to require additional width and thickness of pavements.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
§ 154.140 COUNTY HIGHWAY ENTRANCES; CURB AND GUTTER AND ACCELERATION/DECELERATION LANES.
   County highway entrances must be constructed with curb and gutter returns and acceleration and deceleration lanes, as specified by the Chief Subdivision Engineer when proposed in conjunction with a subdivision, and must meet the requirements of the County Freeway and Highway Access Regulation Ordinance.
(Ord. passed 7-8-1970; Res. 09-167, passed 6-18-2009)
Loading...