Lifting over the Piscataqua - A New Lift Bridge for Maine and New Hampshire

摘要

The new 300-ft vertical lift bridge crossing the Piscataqua River between Maine and New Hampshireintroduces new design features to carry vehicular, pedestrian and freight rail traffic. The design of the Sarah LongBridge successfully utilized the CM/GC (Construction Manager/General Contractor) process throughout preliminaryconcepts through final design, environmental permitting, and ROW, in a period of 21 months. This process, aswell as the innovative design techniques that maximized project value, are described hereinafter.