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$2.3M Awarded for Coronado Bridge

Thursday, February 7, 2013

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A big section of San Diego's scenic Coronado Bay Bridge is in for a $2.3 million facelift by Certified Coatings, of Concord, CA.

The California Department of Transportation (Caltrans) has awarded a $2,291,294 contract to the contractor to clean and paint four spans on the bridge.

The project involves cleaning and recoating structural steel surfaces on a 647.25-foot-long section (spans 26-29) of the bridge. The engineer’s estimate was $2,320,000.

Close to $2.3 million has been awarded to Certified Coatings to clean and paint four spans on the Coronado Bay Bridge in San Diego.

The rocker bearings, catwalk, bridge crane rails and other steel will be steam-cleaned or pressure-washed to remove gloss and deteriorated coatings. The steel will be tested for soluble salt (SSPC-Guide 15) with chloride remediation as needed. Corroded surfaces and all crane rail surfaces will be abrasive blast-cleaned to a Near White finish (SSPC-SP 10) and coated with an inorganic zinc-rich primer. All steel surfaces will be finished with two coats of waterborne paint.

The existing coatings contain lead, cadmium and zinc; Class I containment according to SSPC-Guide 6 is required. SSPC-QP 1 and QP 2 certifications are also required.

About the Contractor

Certifed Coatings is a subsidiary of the Muelhlan AG, an international coatings company based in Hamburg, Germany. Muelhlan AG has nearly 30 subsidiaries in North America, Europe and in growth regions of the Middle East and Asia. More than 2,100 employees at about 40 locations offer customized services for surface protection in ship building and repair, wind energy, oil and gas and other large construction and infrastructure projects.

About the Bridge

The curved, five-lane 11,179-foot-long prestressed concrete/steel girder structure connects the cities of Coronado and San Diego over the San Diego Bay. It reaches a maximum height of 200 feet, allowing the U.S. Navy ships that operate out of the nearby Naval Station San Diego to pass underneath.

The bridge cost $47.6 million to build and opened in 1969 to mark the 200th anniversary of the founding of San Diego. It was retrofitted in 1976 with special rods as a preventive measure against potential earthquake damage.

In late 2011, Truesdell Corporation of California Inc., of Phoenix, AZ was awarded a $397,397 contract to clean and seal approximately 346,560 square feet of concrete bridge deck surfaces using 4,335 gallons of high molecular weight methacrylate penetrating treatment.

Coating Maintenance

Caltrans employs a four-person crew that works year-round to protect steel on the bridge from its corrosive ocean environment. The bridge is comprised of 13,000 tons of structural steel that is painted blue, intended to blend well with the bridge’s vibrant sky and sea backdrop.

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


Tagged categories: Abrasive blasting; Bidding; Bridges; Containment; Lead paint abatement; Paint BidTracker

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