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PA Seeks Bids to Rehab Platt Bridge

Monday, February 7, 2011

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The Pennsylvania Department of Transportation will accept bids March 3 for cleaning, coating and other rehabilitation work on the George C. Platt Memorial Bridge over the Schuylkill River in Philadelphia.

George C. Platt Memorial Bridge

The Platt Bridge is an 8,780-foot-long, 47.9-foot-wide cantilevered through truss bridge with a 680-foot-long main span over the Schuylkill. The bridge carries PA 291 (Penrose Avenue) over the Schuylkill and was known as the Penrose Avenue Bridge when it opened to traffic in 1951, replacing ferry service across the Schuylkill. The bridge was renamed in the late 1970s to honor an Ireland-born Civil War Medal of Honor winner.

Scope of Work

The rehabilitation project will include cleaning and recoating the structural steel surfaces, as well as repairs to the structural steel and concrete, deck rehabilitation and other miscellaneous construction. The steel will be abrasive blast-cleaned to SSPC-SP 10 (near white) and recoated with a three-coat organic zinc-epoxy-urethane system.

The existing coatings contain lead; containment according to SSPC-Guide 6 and waste disposal according to Guide 7 will be required.

The project also includes application of penetrating sealant to 4,024 square yards of reinforced concrete superstructure surfaces as well as application of epoxy-based surface treatment to 4,800 square yards of bridge decks. PennDOT estimates the value of the contract at $40 million to $45 million.

History, Mystery

The bridge, constructed in 1949 and rehabilitated in 1984, passes over an oil refinery and has been endangered several times by refinery fires.  In 1986, two bronze bas-reliefs of Platt's face were mounted on poles at each end of the bridge. The works were commissioned by Platt's great-great-grandson, Lawrence Griffin Platt. Both works were later stolen and never recovered.

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

   

Tagged categories: Bidding; Government contracts; Maintenance coating work; Renovation

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