Rebuilding a Railroad Bridge

by Richard Ezyk, P.E., (M.ASCE), Proj. Engr.; STV, New York, NY,


Serial Information: Civil Engineering—ASCE, 1999, Vol. 69, Issue 1, Pg. 49-51


Document Type: Feature article

Abstract:

The Peck Movable Bridge and Bridgeport Viaduct is a four-track crossing in Connecticut that serves three rail lines. The 1904 bridge had deteriorated, causing a kink that forced trains to slow to 10 mph and problems with the drawbridge. Finally the decision was made to replace the entire structure. Engineers designed a temporary run-around to permit uninterrupted rail operations while the new bridge was constructed, and reused some of the old bridge's piers. The new crossing features a mid-level, twin, single-leaf bascule span that allows a 105 ft clear navigational channel in the river. Other spans�including outer viaducts over traffic�used differing construction methods based on factors such as providing adequate clearance or minimizing noise.

Subject Headings: Railroad bridges | Rail transportation | Movable bridges | Viaducts | Railroad grade crossings | Maintenance and operation | Construction methods

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