Latest update Date: Friday, December 14, 2012 Contact: Suanne Pelley, SR 520 Communications, 206-770-3578, 206-437-5717 (cell) Quality assurance update: One column to be replaced at contractor direction SEATTLE – Upcoming work on piers and columns for the new State Route 520 bridge will involve excavation in the lakebed inside a protective steel curtain known as
Fears that Las Vegas could run dry are allayed with news that a connection to a new reliable water source is on schedule with a key phase finished this March. Years of drought have halved the capacity of the lake supplying the desert city, with the threat that the water level could fall below the
Diver Dave Cleary surfaces after guiding another sheet piling in place during repair operations at the Hiram M. Chittenden Locks. By Anne-Marije Rook 02/07/2012 From the Ballard News-Tribune The Ballard locks will be closed to all pedestrian traffic Feb. 7 and Feb. 8th to all pedestrian traffic as the U.S. Army Corps of Engineers is
BY MATTHEW PREUSH | THE OREGONIAN | DECEMBER 03, 2009 A photo of a juvenile Chinook salmon that was reportedly the first to use a $100 million fish collection device meant to restore salmon runs in the Upper Deschutes Basin. It’s been four decades since salmon were able to complete their circuitous life journey to and
Long Range Internal Pipeline Inspection Crawler Inspection | 2004 This project required a video inspection of the interior of 3,346' of an 18' & 21' Ocean Outfall Pipeline. This was accomplished by first flushing all the effluent out of the pipeline offshore with fresh water. Once the pipeline was free of effluent, clear water was
New Tacoma Narrows Bridge Washington State DOT | 2003-2004 The new Tacoma Narrows Bridge Project is a suspension bridge design that requires two foundation caissons to be installed in 150 feet of water. These foundations are required to withstand tidal flows of 8 to 12 knots. Associated Underwater Services, Inc. was selected to provide the
2nd RSW at Ice Harbor Dam Walla Walla Army Corps of Engineers | 2004-2005 The Ice Harbor Dam RSW is the first production Removable Spillway Weir to be installed on the Snake River. The 1100 ton fish bypass structure was installed in spillbay 1 on the upstream side of the dam. As with the prototype,
By David Cleary | ENVIRO FOCUS | JUNE 2009 | www.pacmar.com In 2007, Associated Underwater Services (AUS) completed a detailed underwater investigation of the USS Chehalis (AOG-48), a WWII-era navel gasoline tanker resting on the bottom of Pago Pago harbor in American Samoa, and discovered a large quantity of product still aboard. Now the company
DEAN J. KOEPFLER | THE NEWS TRIBUNE Commercial diver Kerry Donohue rides a tugboat to the eastern caisson – or foundation – of the new Tacoma Narrows bridge. Donohue, vice president of Associated Underwater Services of Spokane, is one of 16 divers working on the bridge. They are removing roofs from 30 airtight chambers at