§ 97.31  ROUTING AND PROTECTION OF TRAFFIC.
   (A)   The permittee shall take appropriate measures to assure that during the performance of the excavation work traffic conditions as nearly normal as practicable shall be maintained at all times so as to cause as little inconvenience as possible to the occupants of the abutting property and to the general public, provided that the City Engineer may permit the closing of streets to all traffic for a period of time prescribed by him if in his opinion it is necessary. The permittee shall route and control traffic including its own vehicles as directed by the Police Department. The following steps shall be taken before any street may be closed or restricted to traffic:
      (1)   The permittee must receive the approval of the Street Department and Police Department therefor;
      (2)   The permittee must notify the Chief of the Fire Department of any street so closed;
      (3)   Upon completion of construction work the permittee shall notify the City Engineer and Police Department before traffic is moved back to its normal flow so that any necessary adjustments may be made;
      (4)   Where flagmen are deemed necessary by the City Engineer they shall be furnished by the permittee at its own expense. Through traffic shall be maintained without the aid of detours, if possible. In instances in which this would not be feasible the City Engineer will designate detours. The city shall maintain roadway surfaces of streets designated as detours without expense to the permittee but in case there are not existing streets the permittee shall construct all detours at its expense and in conformity with the specifications of the City Engineer. The permittee will be responsible for any unnecessary damage caused to any streets by the operation of its equipment.
('69 Code, § 18-40)
   (B)   The permittee shall erect and maintain suitable timber barriers to confine earth from trenches or other excavations in order to encroach upon streets as little as possible. The permittee shall construct and maintain adequate and safe crossings over excavations and across streets under improvement to accommodate vehicular and pedestrian traffic at all street intersections. Vehicular crossings shall be constructed and maintained of plank, timbers and blocking of adequate size to accommodate vehicular traffic safety. Decking shall be not less than four inches thick and shall be securely fastened together with heavy wire and staples. Pedestrian crossings shall consist of planking three inches thick, 12 inches wide and of adequate length, together with necessary blocking. The walk shall be not less than three feet in width and shall be provided with a railing as required by the City Engineer. 
('69 Code, § 18-42)
(Ord. 0-74-3, passed 2-11-74)  Penalty, see § 10.99