The conditions relating to permits for the laying of pipes, conduits, drains or other underground structures shall be as follows:
(a) After any pipes, conduits, drains or other underground structures are laid or any excavation is made in the roadway, the trenches or openings shall be properly backfilled with suitable material. The material shall be placed in courses not to exceed six inches, loose measurement. Each course shall be thoroughly tamped or rolled and shall be firm and uniform or backfilling may be made as directed by the Director of Public Safety and Service.
(b) Material satisfactory to the Director shall be used as the final course, so there will be a firm and solid surface. In no case shall the material so placed be allowed to project above or below the grade- of the road as originally established. All surplus material shall be removed in a manner satisfactory to the Director. The permit holder shall maintain the berm over the trench in a manner acceptable to the Director for the period of one year.
(c) If the work performed is under the pavement, it will be required that any portions removed in excavating or damaged in the progress of the work, with the exception of the road base and surface, shall be replaced in accordance with subsection (b). It is required that the permit holder notify the Director of the day on which the opening of the pavement will be made, also the time of completion of the backfill.
(d) Whenever the pavement is disturbed it will be replaced by the City and the costs of such work shall be borne by the permit holder. Until such time as the road base and surface shall have been replaced by the City, any cost of maintenance of keeping the highway in passable condition shall be borne by the permit holder.
(e) At all times during the progress of the work, adequate protection and passage shall be provided by the permit holder for the traveling public. Not more than one-half of the traveled roadway shall be closed at one time. Such barriers shall be erected and maintained as may be necessary for the protection of the traveling public, and the same shall be properly lighted at night. The permittee shall be responsible for all damages to persons or property due to or resulting from any work done under such permit.
(f) No tunneling shall be done under such permit. Where pipes or conduits are to cross the highway, the crossing shall be made without disturbing the pavement by driving the pipe under the roadway. The pipe shall be carried under and across the road in a larger pipe or casing unless otherwise herein provided or by written consent of the Director.
(g) When manholes are placed in the berm of the street they shall be located at such depth that the berm can be maintained over the top of the same. If at some future time the pavement is widened over the conduit, the manholes shall be raised to conform with the surface of the pavement.
The pavement shall be kept clear of all dirt from the excavation. In the event the street becomes damaged because of the construction, the permittee shall promptly restore the street to its former state of usefulness.
All of the above conditions shall apply in the event it becomes necessary to open the trench at some future date for repairs or removal of structures.
(1957 Code §18-29)