Storrow Drive Connector Bridge

The Storrow Drive Bridge, connecting Boston’s Storrow Drive with Interstate-93, is one of the largest single-cell trapezoidal steel box girder bridges in North America. The exceptional size and weight of the steel girder sections presented many design and constructability considerations. The entire 830-foot long box girder was fabricated in Florida, then disassembled into sections and shipped to Boston via ocean-going barge. Once in Boston the barges were maneuvered through the Charles River Dam locks with only inches of clearance on either side. Overall the bridge consists of a three-span structure with a main span of 380-feet, and a 76-foot wide roadway carrying four lanes of traffic.