(A) All dedicated and designated rights-of-way shall conform to the following minimum dimensions:
Street Right-of-Way | Minimum Dimensions |
Street Right-of-Way | Minimum Dimensions |
Major arterial (Appendix X) | 140 feet |
Major arterial (Appendix X) | 140 feet |
Minor arterial (Appendix Y) | 130 feet |
Major collector (Appendix Z) | 100 feet |
Major collector Sub (four-lane street with possible left turn) | 90 feet |
Minor collector (Appendix AA) | 80 feet |
Minor collector sub (two-lane street with possible left turn) | 70 feet |
Local (Appendix AB) | 70 feet |
Local subdivision streets | 50 feet |
Culs-de-sacs: | |
Local | 50 feet in radius |
Local - More than eight (8) lots* | 60 feet in radius |
Collector | 70 feet in radius |
Crosswalks | 10 feet |
Utility easements | 15 feet |
* Number of lots at cul-de-sacs does not include lots with property lines abutting the intersecting street.
(B) No more than two streets shall intersect at any one point unless specifically approved by the Commission. Intersections of major streets shall be at least 800 feet apart and any street jogs with centerline offsets of less than 150 feet shall not be permitted, as shown in Chapter 155 Appendix L. Proposed new intersections along one side of an existing street shall, wherever practicable, coincide with any existing intersection on the opposite side of the street.
(C) All streets shall intersect at 90° whenever possible or a minimum distance of 100 feet; however, in no instance shall they intersect at less than 80° onto arterial or collector or local streets, as shown in Chapter 155 Appendix M.
(D) To insure adequate site distance, when the street centerline deflects more than 10°, connections shall be made by horizontal curves. The minimum centerline radius for local residential streets shall be 150 feet and for all other streets shall be 400 feet, as shown in Chapter 155 Appendix N.
(E) A tangent of at least 100 feet shall be introduced between reversed curves on local and collector streets, as shown in Chapter 155 Appendix O.
(F) Clear visibility, measured along the center line of the street, shall be provided for at least 600 feet on all arterial streets, 400 feet on collector streets, and at least 200 feet on all local streets.
(G) The maximum vertical grade for all streets shall not exceed 5%. The minimum vertical grade of all streets shall be 0.4%.
(H) The maximum length cul-de-sac street shall be 1,300 feet measured along the center line from the intersection at origin through the center of the circle to the end of the right-of-way. The origin of a cul-de-sac shall be defined as the centerline of the first street intersected by the cul-de-sac. Each cul- de-sac shall have a terminus of nearly circular shape with a minimum right-of-way diameter of 100 feet for residential use and 120 feet for industrial use, unless the Commission approves an equally safe and convenient form of space instead of the required turning circle.
(’86 Code, § 7.1-38) (Ord. 1993-9G, passed 9-27-93; Am. Ord. 2003-4B, passed 4-7-03
; Am. Ord. 2006-11A, passed 11-13-06)