(A) Every trench must be backfilled to the existing surface and shall include a minimum three inch layer of temporary cold asphalt concrete or covered by steel trench plates the same day.
(B) If backfilled, the trench shall be flush with the existing surface and include a minimum three inch layer of temporary cold mix asphalt concrete.
(C) If steel plates are used, the plates shall overlap the existing pavement by a minimum of 12 inch, secured against movement in any direction and shall be ramped to the elevation on the adjacent pavement. Temporary ramps shall be constructed of fine grained asphalt and shall have a maximum slope of 5.0% (1:20) with a minimum of 18 inches of taper to the plate edge.
(D) Steel plates may be required to be inset into the paved surface, made flush and restrained to avoid movement. This requirement shall apply to steel plates that will remain in place for more than 14 days in areas where the excavations are located within the vehicular travel lane, outside the travel lane but used for bicycle or pedestrian traffic or as directed by the City Engineer.
(E) The permittee is responsible for maintenance of the steel plates, shoring, asphalt concrete ramps, and ensuring that they meet minimum specifications.
(Ord. 887-C.S., passed 8-6-19)