Projects

Northwest Diving Services


Mercer Island Sewer Line and Pump Station #4 Replacement

City of Mercer Island (2009)
Providing diving support for replacement of over 7,000 feet of sewer pipe in Lake Washington.

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Hiram M. Chittenden Locks - Emergency Scour Inspection

U.S. Army Corps of Engineers (2010)
Global responded within 24 hours to a request for emergency inspection of the outer wall of the Small Lock at the Hiram M. Chittenden Locks.

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Tommy Thompson Inspection

University of WA (2010)
Diver performs underwater inspection of the University of WA research vessel

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Cellular Bulkhead Repairs

LaFarge (2010)
Providing diving assistance to assist with dredging and repairs to cellular bulkhead.

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WSU Richland Intake

Washington State University (2010)
Dive job to remove debris from the intake pipe along with inspecting and cleaning the intake screens.

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Emergency Response for Bainbridge Island Sewage Treatment Facility

Bainbridge Island, Wastewater Division (2009)
Provided emergency response to obstruction in primary clarifier mixing equipment.

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Dock Maintenance

Port of Brownsville (2009)
Removed marine growth on the underside of float sections, then cleaned and repaired the dock's chain lockers.

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Carkeek/Richmond/Alki Outfall Repair - Alki

King County - Wastewater Treatment Division (2009)
Upgraded the cathodic protection system on Alki outfall, and installed five anode sleds in 100 feet of water.

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Carkeek/Richmond/Alki Outfall Repair - Richmond Beach

King County - Wastewater Treatment Division (2009)
Moved existing sediment to allow for removal and replacement of outfall diffusers in 150 feet of water.

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Carkeek/Richmond/Alki Outfall Repairs - Carkeek

King County - Wastewater Treatment Division (2009)
Replaced 11 steel diffusers with new HDPE diffusers in 200 feet of water. Divers used a combination of helium and oxygen.

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Port Townsend Maritime Center, Heat Exchanger Installation

Swift Plumbing (2009)
Provided dive assistance with installation of underwater heat exchanger as part of a new HVAC system.

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Boat Ramp Upgrade

Conoco Phillips Ferndale Refinery (2008)
Removed existing woodpile-supported boat ramp, and replaced with new steel piling and galvanized steel frame and track components.

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Fairchild Air Force Base

(2008)
Inspected and cleaned multiple potable water storage tanks within the Air Force base.

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Rimrock Reservoir

Tieton Hydropower (2007)
Assisted a hydroelectric operator with modifications to an existing trash screen.

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