Box Canyon Dam Upstream Fish Passage Project Fall of 2017 Box Canyon Dam, located on the Pend Oreille River in Washington, is required to provide upstream fish passage for the Bull Trout, West slope Cutthroat, and the Mountain Whitefish. AUS provided diving support for the project working for the General contractor, J.W. Fowler, and
August 2013 AUS conducted a survey of the Twin Falls Powerhouse tail race tunnel between August 6 and August 8,2013. The condition of the tunnel was documented by ROV video and scanning and imaging sonars. After analysis of the information provided by the survey, thetunnel was found to be in good condition with no significant
In the winter of 2014, AUS spent 10 weeks in Great Falls, Montana, overhauling the waste gates at Ryan Dam. The crew removed the gates and gate stems, installed new gate guides, and replaced the reworked gates and stems. Utilizing Nitrox breathing mixture throughout the project, divers made 194 dives to a depth of 66′,
ROV Station at Twin Falls Associated Underwater Services, Inc. (AUS) conducted a Remotely Operated Vehicle (ROV) survey of Twin Falls Power Plant tail race at the Snoqualmie River near North Bend, WA. The project was conducted for ENEL Green Power North America (EGP) who operates the hydroelectric facilities at the site. The tail
After nearly six years of construction, AUS is proud to announce the opening of the new highway 520 floating bridge across Lake Washington. The new route 520 bridge is the world’s longest floating bridge at 7,710 feet long, making it 132 feet longer than the old highway 520 bridge. Once the new pontoons were established,
Fall 2015 Striving to improve the water quality of Spokane’s River, the City of Spokane and partners created a project known as the “barge cleanup”. The river cleanup was part of a series of events in September of 2015 to clean up Spokane’s river by remove large pieces of rubbish from the river. Pictured to the
ROV Penetration Inspections of: Farr Pump Plant, Willow Creek Intake, and Grand Lake Intake Farr Plant Intake Inspection AUS conducted the Farr plant intake inspection which required the internal and external inspection of the intake structure utilizing a SEAEYE Falcon ROV. The structure was located in 113 feet of water at an altitude of 8200 feet.
AUS had multiple dive teams working on the Nine Mile Dam project. The underwater work is part of a large refurbishment project for Avista corporation. AUS performed underwater operations including wall sawing, core drilling, welding, burning, anchor bolt installation, steel setting, grouting, bulkhead guides, and bulkhead installation and removal. The challenging working conditions required a team effort and an
2013-2014 The Blue Lake Dam Expansion project required the removal and replacement of trash racks, bulkhead gates, and bypass valves. There was also a large amount of debris to be relocated. AUS divers used their experience operating in harsh and difficult environments to overcome challenges and enable a successful project working in a remote location.
Rehabilitation at Snoqualmie FOR FANS OF THE EARLY ‘90s serial television drama, “Twin Peaks,” Snoqualmie Falls is instantly recognizable from the show’s iconic opening sequences. But for the nearly two million visitors the falls receives every year, it is so much more. Located about 30 miles east of Seattle, Snoqualmie Falls is one of the
