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J.F. White and its Design Build Team was contracted by MassDot as the best valued design build contractor for the Cedar Street Bridge Replacement Project in Wellesley, MA. the main objective of the project was to upgrade the deteriorated components of the bridge substructure and replace the existing bride superstructure with a new bridge deck that has an increased load capacity and 1'-3' greater vertical clearance under the bridge to Route 9 below.
J. F. White utilized accelerated bridge construction methods in order to minimize the duration of work performed int eh roadway. the replacement bridge deck was built in advance on a temporary support structure adjacent to the existing bridge. During a 72 hour long detour of Route 9, J. F. White proceeded with the demolition of the existing bridge and abutments and installed precast concrete abutments extensions. The new bridge deck superstructure was moved in to place with Self-Propelled Modular Transporters (SPMTs) that lifted the replacement bridge deck from its temporary shoring towers and drove it out on to Route 9 to its final location where it was lowered into place with all work complete 10 hours ahead of schedule.
Contract value: $3,748,000. |