Ordinances-2003-260

the curb height transitioned as indicated by Iowa Department of Transportation requirements. iii. Where curbs are required to be cut for the construction of access the curb shall be ground. Cut curb ends shall be tapered from full height to ground level in a distance of approximately 2 feet. Where drainage is carried along the curb, the flow line to the gutter through the access shall be retained. iv. Where a sidewalk is located close to the curb line and the access opening is to be provided across a depressed or cut curb, the sidewalk should be removed and replaced with access pavement and be warped to conform to the access profile. One or both edges of the sidewalk may be depressed across the access provided the resulting sidewalk cross slope does not exceed \( \frac{1}{2} \) inch per foot. In some cases, it may be necessary to discontinue the sidewalk across the access and to construct a curb along each access edge. However, curbed access must meet the necessary requirements established to meet the Americans with Disabilities Act (ADA). e. Cross Section and Material i. Access must be surfaced and well maintained to ensure that the original profile is retained, that operational speeds are not reduced by pot holes or rough surfaces, and that no damage to or deterioration of the prescribed roadway pavement is caused by the condition of the access. All accesses shall be surfaced from the roadway edge to the right-of-way line. Unsuitable material must be removed and replaced with the proper base material. The type of material and thickness will be approved by the City of Tiffin and will depend primarily on the intended use of the access as well as the proposed volume and types of vehicles using the entrance. Granular material past the right-of-way line, will only be allowed for field entrances. ii. Minor accesses will be required as a minimum, to be surfaced with 12" of gravel or crushed stone base course and 3.0" of bituminous asphalt surface. The only exception to this is a field entrance, which does not have to be paved, but will be required to have 6" of granular material.