Tappan Zee Set for Inverset (Available only in Structures special issue)

by Harry Goldstein, Asst. Editor; Civil Engineering, 345 E. 47th St., NY, NY 10017,


Serial Information: Civil Engineering—ASCE, 1996, Vol. 66, Issue 9, Pg. 12A-13A


Document Type: Feature article

Abstract:

Replacing the deck on New York's Tappan Zee Bridge is a ticklish problem, considering that all of the work has to be done at night. A combination of isotropically reinforced concrete slabs and the Inverset deck system seems to be the answer. Faced with a tight budget and the need to replace the deck of the mall section on over 80 50 ft trestle spans on the west side of the heavily traveled, 3 mi long Tappan Zee Bridge spanning the Hudson River, a team of engineers led by the New York State Thruway Authority devised a plan for deck replacement that would restore traffic after an overnight construction window of 8 p.m. to 6 a.m. using the Inverset bridge system supplied by the Fort Miller Co., Inc., Schuylerville, N.Y.

Subject Headings: Bridge decks | Infrastructure construction | Reinforced concrete | Ecological restoration | Bridge engineering | Windows | Water transportation

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