AUS Projects

  AUS Divers Assist with Historic Pier Rehabilitation on Seattle Waterfront: Divers from Associated Underwater Services (AUS) have recently completed pier rehabilitation project at the historic Pier 57 on Seattle’s Central Waterfront.. The work consisted of replacing deteriorated timber piles with steel stubs which improved the structural strength of the historic pier. The work was … Read more

Borman Park Intake 2 Gary, Indiana | 2001 The Borman Park Intake is comprised of a land drop shaft and subterranean tunnel that terminates in a riser intake structure one mile offshore of Lake Michigan. Th riser is installed in a drilled shaft and connects the tunnel to the intake structure allowing water to be … Read more

South Bay Ocean Outfal San Diego, California | 1996-1997 The project was initiated to prevent serious environmental problems from wastewater throughout the waters of San Diego and Tijuana. It was designed and constructed to convey wastewater from the International wastewater treatment plant and City of San Diego wastewater treatment to a diffuser system approximately 4 … Read more

Lake Mead Intake No. 2 Southern Nevada Water Authority | 1998-1999 The scope involved construction of an intake shaft in Lake Mead. Tasks included installation of a rock deflector cage, flared inlet, and 12-foot diameter steel-lined shaft in depths up to 240 feet below the lake surface and 380 feet offshore. The intake site was … Read more

Blue Ridge Dam Lake Tap Blue Ridge, Georgia | 2003 Tennessee Valley Water Authority This raw water bypass project consists of a hard rock tunnel mined to a Lake Tap positioned in the bottom of the reservoir. The unique design requires the excavation of the shaft and installation of the liner elbow cap and trashrack … Read more

2006 – 2010King County conceived Brightwater as a major improvement to the regional sewerage treatment system in response to rapid population growth in greater Seattle. Read Full Story

2007-2009Round Butte Dam is located about 90 miles southeast of Portland, or on and adjacent to the Warm Springs Reservation. Portland General Electric determined that a selective water withdrawal and fish bypass structure was necessary to ensure the survival of Summer Steelhead and Spring Chinook Salmon Read Full Story

Sunken Vessel Inspection Pago Pago Harbor, American Samoa CH2M Hill | 2006 The USS Chehalis, a Patapsco class gasoline tanker, commissioned on December 5, 1944, caught fire and sank in 1949 with more than 400 gallons of petroleum cargo and thousands of rounds of artillery shells on board. The American Samoa Environmental Protection Agency is … Read more