(A) Street grades shall conform as closely as possible to natural topography, but shall not exceed 10%. (See § 154.089(A) of this chapter.)
(B) Street grades exceeding 8% (see § 154.089(A) of this chapter) shall have a maximum length of 600 feet.
(C) Private access-way grades shall conform as closely as possible to natural topography, any portion that exceeds 16% (see § 154.089(A) of this chapter) shall be heated.
(D) Where pedestrian trails or pathways are proposed, acceptable surface treatments include stabilized decomposed granite, asphalt or concrete. Sidewalks may be replaced by the trails or pathways only upon approval of a variance request by the City Council. Minimum width of pedestrian trails or pathways is six feet.
(E) Vertical curbs shall be required on the downhill sides of streets having grades of 6% or greater. Concrete “u” or “V” gutters may be considered in place of conventional rolled or vertical curbs upon submittal of a supporting drainage report acceptable to the City Engineer.
(F) On a corner lot, no grading shall be allowed which results in the ground level being raised to obstruct the vision at a height of more than three feet above the grade of either street within an area formed by the lot lines on the street sides of said lot and a line joining points on said lot lines located a distance of 33 feet from the point of their intersection. Sight distance triangles shall be shown on the final plat and shall be based on the horizontal and vertical roadway geometry.
(G) Transverse street cross sections with the gutter on the uphill side may be used where approved by the City Engineer. All cut and fill slopes shall be within the roadway rights-of-way or roadway easements or dedicated slope easements. Slope maintenance easements for roadway cuts and fills may be required by the City Engineer and be shown on the final plat.
(H) “Panhandle” double frontage and other unusually configured lots, including lots which have a width to depth ratio greater that one to three (1:3), shall be permitted if it can be adequately demonstrated to the satisfaction of the Commission that their design will eliminate excessive cuts and will not adversely affect any other lot so configured.
(I) Each private access way serving more than one lot shall have a minimum paved surface of 20 feet in width or as may be required by city standards and specifications. Where needed, additional easements for drainage or utilities shall be provided.
(J) Cut and fill slopes shall be set back from site boundaries a horizontal distance measured perpendicular to the site boundary. The top of cut slopes shall not be made nearer to the boundary than one-fifth of the cut height with a minimum three-foot setback. The toe of the fill slope shall not be made nearer the boundary than one-half the height of the slope with a minimum three-foot setback.
(Prior Code, § 10-10.03) (Ord. 862, passed - -2006)