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- Lines of excavation, backfill, compacted backfill or embankment which are described in the specifications or shown on the drawings which describe or show the limits to which earthwork is paid for.
Bureau of Reclamation - Cite This Source - This Definition - Backfill, Backfill concrete, Compacted backfill, Refill, Sand backfill, Select material, Uncompacted backfill, Unsuitable material