(A) All spaces excavated and not occupied by abutments, piers or other permanent work shall be refilled with earth up to the surface of the surrounding ground, with sufficient allowance for settlement. Where the backfill is to carry the roadway embankment or any part thereof, the backfill shall be made in continuous horizontal layers not greater than eight inches in thickness, and each layer shall be thoroughly compacted by mechanical or hand tamping before the succeeding layer is placed and the same for an approach to embankment to bridges and culverts. All other backfill shall be thoroughly compacted and its top surface shall be neatly graded. All material used for backfill shall be of a quality acceptable to the Council and shall be free from large or frozen lumps, wood or other extraneous material. In general, this material shall be selected from the material excavated in connection with the substructure involved. Jetting or ponding of the backfill will be permitted if water is available unless specifically prohibited by the City Council, in which case mechanical tamping will be required.
(B) No equipment with steel lugs shall be used in backfilling on a paved street. Such equipment shall be equipped with rubber tires or tracks.
(Prior Code, § 12.04.100) (Ord. 1, passed 1-17-1980)