(1) The permittee shall construct and maintain adequate and safe crossings over excavations and across public properties under improvement to accommodate vehicular and pedestrian traffic at all street intersections and wherever a trench crosses a roadway.

(2) Vehicular crossings shall be constructed and maintained of plank, timbers and blocking of adequate size to accommodate vehicular traffic safely. Decking shall be not less than four inches thick and shall be securely fastened together with heavy wire and staples. The top surface of such decking shall not be above the level of the adjacent roadway.

(3) Pedestrian crossings shall consist of planking three inches thick, 12 inches wide and of length required, together with necessary blocking. The walk shall be no less than four feet in width and shall be provided with a railing, if required by the City Engineer. [Ord. 1021 § 13, 1961; Code 1970 § 12.24.160; Code 1954 § 4-5.64.]