The Triborough Bridge and Tunnel Authority, a division of the New York City Metropolitan Transportation Authority, recently accepted two sets of bids for major repairs on the 13,700-foot-long Verrazano Narrows Bridge.
The Authority received eight bids for replacing the upper level roadway deck on the suspended spans, and six bids for maintenance and coatings application on the cables.
About the Bridge
The Verrazano Narrows Bridge was built between 1959 and 1964, and was the longest suspension bridge in the world at the time of its opening. The 13,700-foot structure, which features a 4,260-foot-long main span, is currently the planet’s eighth longest suspension bridge. The iconic structure is visible from points in all five boroughs, and, as of 2008, carries an average of 190,000 vehicles per day over the Narrows (for a hefty toll).
Photo by Mass Communication Specialist 3rd Class Jonathan Snyder, USN
(via Wikimedia Commons)
The structure was the last major project overseen by Robert Moses. The renowned head of the Triborough Bridge and Tunnel Authority viewed the bridge as the final major component of his expressway system. The project was also the last significant project for chief engineer Othmar Ammann, who, with Moses, coordinated a number of major bridge projects in NYC. The structural design work required engineers to account for the earth’s curvature in planning the massive towers, resulting in the tops being 1 5/8 inches further apart than at the bases.
The Authority received eight bids on June 28 for installation of new orthtropic steel decking on the upper level roadway of the suspended spans and a variety of related repairs. The project includes coating lower level relief joints and floor truss lower chord members, as well as performing touch-up work at other locations. The low bid was submitted by Tutor Perini Corp. of Peekskill, NY, at $235,728,000. CCA Civil Inc. (Jersey City, NJ) and the joint venture of Judlau Contracting (College Point, NY) and Conti Construction (Edison, NJ) were close behind, at approximately $242.2M and $247.4M, respectively. The remaining five bids ranged up to $329.3M. The project has an anticipated duration of five years.
The Authority also accepted bids for oiling of cable strands and eyebars and coating of cable and suspender ropes. The bridge is supported by four 7,205-foot-long, 3-foot-diameter cables. The contract, which requires SSPC-QP 1 and QP 2 certification for the coatings work, was let on June 1, and received six responses. The low bidder, Commodore Maintenance Corp. of Mt. Vernon, NY, proposed a price of $8,373,000. Corcon, Inc. of Lowellville, OH, was the next closest submittal, at $12,488,260. The Authority received four other bids, with the highest valued at almost $23M. The contract is expected to last for two years.
Other Recent Projects
The bridge has undergone numerous major projects over the past ten years, including $31M anchorage and approach repairs that were finished in 2002, a $40M paint job that was completed in 2003, and a second painting job that concluded in 2008 at a cost of $32M. Corcon, Inc. is currently performing lead abatement and coatings application on the lower portions of the towers, under a $19M contract.
Courtesy of MTA
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