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Bids Sought for WA Iron Bridge Painting

Tuesday, March 20, 2012

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The City of Spokane, WA, will accept bids April 2 for coating work as part of the rehabilitation of the city’s historic Iron Bridge over the Spokane River.

The 560-foot-long railroad truss bridge, which was built in 1902 and closed in 1973, is being converted for bicycle and pedestrian use.

 Iron Bridge, Spokane, WA

 MetroSpokane

The bridge will link directly with the popular Spokane River Centennial Trail, a 37-mile rail-trail that draws more than 1.5 million users a year.

The coating piece of the project is estimated at $700,000 to $900,000.

Scope of Work

The project includes cleaning the bridge; abrasive blast-cleaning and patching deteriorated concrete with an elastomeric concrete compound; applying a primer and waterproofing membrane to 740 square yards of deck surfaces; and coating portions of the existing structure.

The steel will be waterjetted at 4,000 psi (minimum) and spot hand-tool and power-tool cleaned (SSPC-SP 2 and SP 3). The project includes spot-recoating corroded surfaces, as well as overcoating floor beams up to 10 feet high on the inside faces of the trusses and other portions of the bridge.

The project also includes removing about 100 linear feet of pack rust and applying a urethane sealant. The steel will be coated with two- and three-coat moisture-cured urethane systems. The existing coatings contain varying levels of lead, with the majority of the surfaces to be coated containing between 167,000 and 322,000 ppm; containment will be required throughout the project.

Reported by Paint BidTracker, a construction reporting service devoted to identifying contracting opportunities for the coatings community. Visit us on Facebook!

   

Tagged categories: Abrasive blasting; Bidding; Bridges; Corrosion; Lead paint abatement; SSPC; Waterjetting; Waterproofing

Comment from Tom Schwerdt, (3/21/2012, 11:17 AM)

Interesting that they are choosing to encapsulate rather than remove the lead.


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