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Project Information:
Chief Joseph Dam

Project Location
Columbia River, Washington USA

Rust Bullet Distributor
Annex Paint ~ 818-344-3000
Contact: Greg Saunders

United States Army Corps of Engineers, Seattle District
Contractor and Applicator
USACE Chief Joseph Dam Project Office Painting & Maintenance Crew

Project Completion Date
2012 - Continuous Maintenance

Airless, Brush & Roll
Dam: Chief Joseph Dam. Columbia River. River Mile 545.1
Constructed: 1961 (units 1-16), 1979 (units 17-27)
Full Pool: 956.0 feet
Minimum Pool: 930.0 feet
Powerhouse Capacity:
Nameplate capacity: 16 @ 64 MW, 11 @ 95 MW, 2069 MW total
Overload capacity: 16 @ 88.3 MW, 11 @ 109.3 MW, 2614 MW total
Station service units: 2 @ 3 MW, 6 MW total
Hydraulic capacity: 219 kcfs
Spillway: 980 feet, 19 gates


Project Description:



Submitted 08/27/2012

The Chief Joseph Dam is a concrete gravity dam on the Columbia River in Northwestern United States, 1.5 miles upriver from Bridgeport, Washington. The dam is 545 miles upriver from the mouth of the Columbia at Astoria, Washington. The Dam is operated by the United States Army Corp of Engineers (USACE) Chief Joseph Dam Project Office. The Chief Joseph Dam is the second largest hydroelectric power producer in the United States, having the hydraulic capacity of 6,030 m3/s (213,000 cf/s).  The electricity generated at the Dam is marketed by the Bonneville Power Administration.

The Painting and maintenance Crew have been using Rust Bullet for over a year and a half on any metal surfaces requiring paint and/or corrosion control products. From hand rails and metal grating  to the giant spill way gates which are submerged for more of the year and therefore, not top coated. All areas requiring specific color identification for safety are then top coated with the appropriate OSHA Safety Color.
Previously the Spillway gates were painted with a vinyl epoxy, which has failed (see photo).  At this time they are not stripping all the vinyl but patching the vinyl where it has failed with Rust Bullet. You can see from the picture of the one gate that was spot primed the white patches are where the previous vinyl paint was patched and failed again. Now with the application of the Rust Bullet the patches are holding and the Corrosion has been abated until the entire gate can be stripped and recoated with Rust Bullet from top to bottom. The painters prefer to use a conventional spray gun and have been applying 3 coats of the Rust Bullet Industrial letting each coat dry to the touch before recoating.  They acheive an approximate 12 to 15 dry mil dry film thickness.

The 27 pieces of electrical machinery located above one of the Turbines are already scheduled for coating with Rust Bullet. Similar machinery that was not coated with Rust Bullet is exhibiting coating failure due to the exposure to extreme atmospheric conditions of moisture and UV rays. The painting and maintenance crew now insist on using rust bullet and have stated that they would personally promote Rust Bullet to any industrial painter who is has to deal with corrosion control.





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