(A) The minimum right-of-way widths to be dedicated or established and the minimum street pavement widths shall conform to the values listed in § 153.50.070.
(B) Local streets shall be laid out so that their use by through traffic will be discouraged. In a residential subdivision with lots having frontage on both a local street and a Collector Street, the covenants for the subdivision shall prohibit the installation of driveways connecting to the major or collector street.
(C) Street jogs with centerline offsets of less than 125 feet are prohibited.
(D) Cul-de-sacs, if no other alternative exists, shall have a maximum length of 500 feet, measured along the centerline from the intersection at origin, through the center of the circle, to the end of the right-of-way. Each cul-de-sac shall have a terminus of circular shape with a minimum right-of-way diameter of 120 feet.
(E) No street names may be used which will duplicate or be confused with the names of existing streets in the Lockport Township Fire Protection District, Northwest Homer Fire and Ambulance District, or Homer Township Fire Protection District. Existing street names must be extended wherever possible. Streets within a subdivision cannot be named after the developer or the name of the project unless said street is within said subdivision and cannot be extended into other subdivisions. Proper names shall be discouraged.
(F) If the tract of land proposed to be developed, or any part thereof, lies adjacent to a highway over which the Will County Division of Transportation, the Illinois Department of Transportation or the Illinois Toll Highway Authority has jurisdiction with respect to maintenance and upkeep thereof, and an entrance or entrances are proposed from such highway to lots, streets, roadways or alleys in the development, the developer shall submit to the Director of Public Works and Engineering or authorized designee a copy of the written permit from the appropriate jurisdiction, granting permission to obtain and construct such an entrance or entrances.
(G) Alleys may be required in business, office and research, and industrial districts unless provisions are made for service access, such as off-street loading, unloading and parking, consistent width and adequate for the proposed uses. Alleys shall be prohibited in residential areas except where topographic or other conditions may necessitate their use. The minimum width of an alley right-of-way shall be 20 feet. The minimum alley pavement width shall be 18 feet. Dead end alleys are prohibited.
(H) Planned subdivisions and/or developments adjacent to existing subdivisions and/or developments shall be designed to accept the alignment and corresponding widths of existing pavements. The Director of Public Works and Engineering or authorized designee shall determine the proper alignment to be made where the wider pavement connects to narrower pavement at the boundary of the development. Pavement markings shall be provided in the transition section to designate driving and parking lanes.
(I) Clear visibility, measured along the center line of the street shall be provided for at least 350 feet on all major streets, and for 200 feet on all collector and local streets. Horizontal and vertical alignment of streets under city jurisdiction shall be designed in accordance with the IDOT Bureau of Local Roads and Streets Manual, including stopping sight distance, passing sight distance and intersection sight distance requirements listed in Ch. 28, horizontal alignment requirements listed in Ch. 29 and vertical alignment requirements listed in Ch. 30.
(J) All street intersections shall be designed to encourage safe traffic flow.
(K) Gradients (longitudinal slope) of streets shall be a minimum of 1%, except where unusual topography dictates relief, the Director of Public Works and Engineering or authorized designee may permit a minimum slope between 0.5% and 1%. Gradients of streets shall not exceed 5%. Street gradients shall be designed to provide natural surface drainage of stormwater with minimal ponding, regardless of the presence of storm sewer facilities.
(L) To facilitate traffic movements from collector to residential streets, channelized approaches shall be provided where warranted. For streets under city jurisdiction, the warrant and the geometrics of channelized approaches shall conform to the requirements in Ch. 34 of the IDOT Bureau of Local Roads and Streets Manual.
(Ord. 18-008, passed 2-7-18; Am. Ord. 21-021, passed 8-18-21)