(A) Only two streets. Not more than two streets shall intersect at any one point.
(B) Right angles. Streets shall be laid out so as to intersect as nearly as possible at right angles; in no case shall two streets intersect at an angle of less than 75 degrees. An oblique street shall be curved approaching an intersection and shall be approximately at right angles with said intersection for at least 100 feet therefrom.
(C) Proper alignment. Proposed new intersections along one side of an existing street shall, whenever practicable, coincide with any existing intersections on the opposite side of such street. Street jogs with centerline offsets of less than 125 feet shall not be permitted, except where the intersected street has divided lanes without median breaks at either intersection. Intersections involving collector or arterial streets shall be at least 800 feet apart.
(D) Curb radii. To permit safe vehicular movements at corners, the minimum curb radius at the intersection of two streets shall be 20 feet, and the minimum radius at the back of the curb shall be 32 feet.
(E) Flat grade. Intersections shall be designed with a flat grade wherever practical. In hilly terrain, an area having not greater than a 3% slope for a distance of 50 feet from the nearest right-of-way line of the intersecting street shall be provided at the approach to an intersection.
(F) Maximum cross-slope. The cross-slopes on all streets, including intersections, shall not exceed 3%.
(G) Adequate sight-lines. Where any street intersection will involve earth banks or existing vegetation on the triangular area shown in Figure 1, in Appendix B at the end of this chapter, the developer shall cut such ground and/or vegetation (including trees) in connection with the grading of the public right-of-way to the extent necessary to provide an adequate sight distance.
(1999 Code, § 34-5-13)