Resolution No. 4608 - Laserfiche WebLink

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c) Grade: Maximum grade of 150/0 with up to 200' lengths of grades up to 200/0, but no intersections or driveway access in areas with grades above 150/0. d) Sight distance. e) Width: Minimum 20 feet f) Curb height where necessary for roof drains, safety or ADA requirements g) streetalignments in relation to natural resource sites and water-related features. 2) Sidewalks are required, but reduced sidewalk width is allowed, curbside or meandering sidewalks that don't parallel the street are allowed, and sidewalks are allowed on one side of the street. Sidewalks must meet ADA require- ments, which allows a minimum width of 3' provided that "passing space" is provided at reasonable intervals, not to exceed 200 feet. 3) Private alleys are required to comply with the standards for public alleys in the following categories: a) Intersection configuration b) Grade c) Width and setback requirements d) Curb requirements (if asphalt) 4) The structural design and construction inspec- tion for private streets and alleys shall remain the developers.responsibility. Certification by a licensed engineer that a structural design meet- ing the public design standards outlined above has been completed shall be submitted with the land use application. 40 Exoeptions to Address Topography and Natural Resourc;es Occasionally, streets are constructed in locations which require special accommodations such as in hilly areas, or near wetlands, canals, dense vegeta- tion, or sensitive plants and animals. In these cases, specific considerations should be made to minimize negative impacts. For example, wide streets along steep slopes require much larger hillside cuts than narrow streets. Generally, the range of local street types make it possible to construct or improve local streets in accordance with the design standards. In certain situations, however, exceptions should be made. Exceptions could result in construction of meander- ing sidewalks, sidewalks on only one side of the street, or curbside sidewalk segments instead of setback walks. Exceptions are allowed when one or more of the following conditions exist. 1) Physical conditions that preclude develop- ment of a public street. Such conditions may include, but are not limited to, topography or the existence of natural resource areas such as wetlands, ponds, streams, channels, rivers, lakes or upland wildlife habitat areas, or a resource on the National Wetland Inventory or under protec- tion by State or Federal law; or . 2) Buildings or other existing development on adjacent lands, including previously subdivided but vacant lots or parcels, physically preclude a connection now or in the future, considering the potential for redevelopment.