Susquehanna River Bridge Replacement
Harrisburg, PA

Background: This project includes the replacement of the existing bridge structure crossing the Susquehanna River at Milepost 245.72 with Pennsylvania’s first vehicular concrete segmental bridges. The selection of precast concrete technology allows for an economical solution to spanning this wide river and minimizes the time frame for construction access in the river which is susceptible to winter ice flows and spring run-off. The twin concrete box girders will be approximately 5,900 feet long by 57 feet wide with typical spans of 150 feet. They will be built on a new alignment just north of the existing bridge, and will carry three lanes of traffic eastbound and three lanes westbound. As a member of the Construction Management team, JBC is providing construction inspection and documentation services for this project involving roadway construction (concrete and bituminous); segmental bridge; interchange and toll facility; realignment of highway; prestressed casting of concrete segments; bridge structures on access roadways; and river causeway construction.