On residential streets, roads, avenues, alleys or public areas where sewer excavations are made perpendicular to traffic flow, a minimum of one-half of the street, road, or alley shall be kept open for moving traffic at all times.
All work shall be conducted with due regard for the safety and convenience of the public. Open trenches shall be provided with barricades that can be seen at a reasonable distance, and shall be adequately lighted at night. Lighted signs for detours and construction in progress shall be provided. All conditions of the construction permit shall be strictly observed; however, following or failure to follow such conditions or requirements shall in no way impose any responsibility or liability on the city and shall not relieve the owner or the person doing the construction of his responsibility or liability.
(Ord. 930 § 2, 1980)