Box Girder Balancing Act

by Alan R. Phipps, P.E., (M.ASCE), Regional Dir.; Western Regional Ofc., Figg Bridge Engrs., Denver, CO,

Serial Information: Civil Engineering—ASCE, 2000, Vol. 70, Issue 3, Pg. 34-39

Document Type: Feature article


On November 18, 1999, cranes lowered into place the last of 202 precast concrete segments that form the main span of the new Sagadahoc Bridge, a $46.6 million crossing that boasts the longest precast balanced cantilever concrete segmental span in the United States, at 128 m (420 ft). Scheduled for completion in October 2000, the Sagadahoc Bridge will replace the Carlton Bridge, a steel truss lift bridge built in 1927. Other innovations incorporated into this Figg engineering project include the design-build approach�a first for the Maine Department of Transportation�and five- and ten-year warranties on parts of the work.

Subject Headings: Steel bridges | Precast concrete | Truss bridges | Movable bridges | Girder bridges | Concrete bridges | Cantilever bridges

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