New Tappan Zee Bridge: Hudson River Test Boring Ends

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Test boring operations in the Hudson River for the new Tappan Zee Bridge have been completed, Tappan Zee Constructors and the New York State Thruway Authority announced Friday. Photo Credit: New York State

TARRYTOWN, N.Y. – Test boring operations in the Hudson River have been completed, Tappan Zee Constructors and the New York State Thruway Authority announced Friday.

Test boring on land, however, will continue next week as crews work on the Westchester trestle. The trestle will support the large crane that will help build the new bridge. The 1,000-foot long trestle reduces dredging and allows crews to work from the water, the Thruway Authority said.

Work on the trest includes daytime pile driving to install the temporary foundation. Crews will continue surveying and test boring next week, causing a temporary right lane closure on the southbound I-87/I-287 lane between the bridge and Route 9 from 10 a.m. to 3 p.m. on Monday and Tuesday.

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