(A) The arrangement of major streets shall conform as nearly as possible to the Major Street Plan with provisions for the extension of major and collector streets. Streets in the subdivision normally shall connect with streets already dedicated in adjoining or adjacent subdivisions or provision shall be made for future connections to adjoining unsubdivided tracts.
(B) Minor residential streets should be so planned as to discourage through traffic. Cul-de-sacs are permitted. Cul-de-sacs shall normally not be longer than 600 feet and shall terminate with a turn-around having a diameter of not less than 100 feet.
(C) Where a proposed subdivision is adjacent to or contains an existing or proposed major or controlled access thoroughfare, provision shall be made for a marginal access street approximately parallel and adjacent to the boundary of such right-of-way or lots shall back up to the major street and have access only to the minor street.
(D) Half streets shall be prohibited.
(E) Under normal conditions streets shall be laid out so as to intersect as nearly as possible at right angles. More than four approaches to any intersection shall be prohibited. Intersecting streets shall be at least 150 feet apart.
(F) The Planning Commission may require dedicated alleys for service access in commercial and industrial areas. The Planning Commission may require dedicated alleys for service access in residential areas.
(G) The right-of-way widths, pavement widths (face to face of curb) and grades for interior streets and alleys included in any subdivision shall not be less than the minimum dimensions or more than the maximum grades for each classification as follows.
Type | Right-of-Way | Pavement | Grade | Minimum Sight Distance on Vertical Curves |
Type | Right-of-Way | Pavement | Grade | Minimum Sight Distance on Vertical Curves |
Arterial streets | *100' | 48' | 6% | 400' |
Marginal access streets | 30' | 24' | 8& | 300' |
Collector streets | *60' | 37' | 10% | 300' |
Minor streets | 50' | 37' | 10% average | 300' |
Alleys | 20' | 12' res. 20' comm. no. | Max. | None |
Cul-de-sac streets | 50' | 37' | 10% average | 200' |
* Streets in these classifications shall be designed and graded to the full right-of-way | ||||
(H) The horizontal alignment on all streets except in unusual cases shall be as follows.
Radii of Horizontal Curves
Arterial streets 700' minimum
Collector streets 300' minimum
Minor streets 100' minimum
(Ord. C-67, passed 7-11-1977)