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Contractors Needed for Coating of WA Bridge

Thursday, November 2, 2017

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The Washington State Department of Transportation is seeking contractors for the coating of the George Washington Memorial Bridge, located in King County. More commonly called the Aurora Bridge, the bridge was first opened to traffic on Feb. 22, 1932. Fifty years after its opening, the Aurora Bridge was listed as a designated Seattle landmark and was placed on the National Register of Historic Places list.

George Washington (Aurora) Bridge
Images: WSDOT

Bids are due Nov. 29 for the recoating of the George Washington Memorial Bridge, in King County, Washington.

Bids are due Nov. 29. 

The project is estimated to be under $30 million.

Scope of Work 

The awarded contractor will oversee the cleaning and recoating of the 2,945-foot-long by 70-foot-wide cantilever and steel-truss bridge.

The bridge was last coated in 1984 with a lead-based paint. Steel surfaces will require brush-off blast cleaning (SSPC-SP 7). Surfaces inaccessible for blasting will be prepared according to commercial-grade power-tool cleaning (SSPC-SP 15). Following brush-off blast-cleaning, contractors will perform commercial spot abrasive blast-cleaning (SSPC-SP 6). Containment is required during blast-cleaning. While cleaning the steel surfaces, additional repairs will be made to an expansion joint on the bridge deck, and six other expansion joints will be resealed.

George Washington Bridge coating damage

The bridge was last coated in 1984 with a lead-based paint.

Because the bridge’s floor beams and stringers were already cleaned and recoated in 2016, as part of Stage 1 of this project, only the trusses and remaining exposed steel surfaces are left to coat. These remaining surfaces will receive applications of a moisture-cured polyurethane system. Owner-approved manufacturers are Wasser and Sherwin-Williams.

Contractors will also oversee the application of 18,717 square yards of a waterproof membrane. A special provision for non-slip surface treatment is included. Owner-approved manufacturers are Daubert Chemical and PPG/Ameron.

The project is scheduled to begin in early 2018 and be completed by fall 2019.

Reported by Paint BidTracker, a construction reporting service devoted to identifying contracting opportunities for the coatings community. Try PaintBidTracker free!

   

Tagged categories: Bidding; Bridges; Contracts; Government contracts; NA; North America; Paint BidTracker; Program/Project Management

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