(A) It shall be unlawful to make any excavation or tunnel in any way contrary to or at variance with the terms of the permit therefor. Proper bracing shall be maintained to prevent the collapse of adjoining ground; and in excavations, the excavation shall not have anywhere below the surface any portion which extends beyond the opening at the surface.
(B) It shall be unlawful to make any excavation in any portion of a street or sidewalk in the city which is paved with a concrete or asphalt paving. Where necessary, and where a proper permit has been secured, tunnels may be driven or excavated under any such pavement, provided that upon completion of the work involved, the tunnel shall be backfilled with compacted sand.
(C) The maximum length of open trench permissible at any time shall be in accordance with existing codes and regulations; however, at night no more than 50 feet may be open with proper barriers.
(Ord. 1088, passed 2-16-1999) Penalty, see § 1-1-19