A new $158 million-dollar lift span bridge over the Southern Branch of the Elizabeth River to replace the existing double-leaf bascule bridge that was constructed in 1938. The new bridge will be 1,908 feet long.
The two main vertical lift span piers (Pier 9 and Pier 10) are supported on 12-foot diameter post grouted drilled shafts. Each pier has four shafts with a length of approximately 112.5 feet. AFT was responsible for the design and fabrication of post grouting systems, grouting operations, instrumentation, and monitoring of all the post grouted drilled shafts. AFT provided two independent grout plants during grouting operations. Post grouting was implemented as a Value Engineering alternative.