Coffer dams placed, large bypass pumping system to pump water around the work zone, DE mucking and fill to grade, install drainage pipe, backfill, and compact
Install four parallel 48-inch HDEP corrugated drainage pipe 600 feet in length
Coffer dams placed, large bypass pumping system to pump water around the work zone, DE mucking and fill to grade, install drainage pipe, backfill, and compact