Backfill of any excavation made in any street or alley shall conform to the following conditions:
(a) Compaction: Backfill material shall be placed in lifts not to exceed 8 inches in depth by loose measurement, moistened as required and mechanically compacted.
(b) Material:
(1) For excavations less than 75 feet in length, all excavated material shall be removed and backfill shall be of select material not in excess of 1-1/2 inches in diameter.
(2) For excavations in excess of 75 feet in length, excavated material of 2 inches or less in diameter may be used for backfill, or material meeting the following specifications may be used:
Minimum Gradation | Percentage |
2 inches to 8 inches | 10% maximum |
4 inches or less | 35% minimum |
(3) In all cases the top 12 inches of the backfill shall be made with crushed gravel 1-1/2 inches or less in diameter.
(4) Pavement and surfacing shall be replaced by a licensed paving contractor.
(5) Excavators, in paved or hard-topped streets shall take care to separate surfacing material from the soil removed from such excavation.
(c) Following backfill and repair, the tolerance of the finished surface shall at no point exceed three-sixteenth (3/16) of one inch in ten (10) feet. All humps or depressions exceeding this tolerance shall be removed and replaced with new material, in accordance with the foregoing sections.
(d) The area surrounding the opening shall be cleared of all debris and left in its original condition.
(Ord. 05-05. Passed 4-21-05.)