The "North Washington Street Bridge" project

TREVIICOS is progressing its work for the construction of the drilled shaft foundations to support the five new piers.

After more than 100 years of service, the North Washington Street Bridge is replaced with a new bridge for the 21st century, a complete street over water that works for everyone: people driving, riding the bus, biking, walking, sightseeing, boating, and living nearby. TREVIICOS is progressing its work for the construction of the drilled shaft foundations to support the five new piers.

TREVIICOS was selected as subcontractor to carry out the foundation works for the project “North Washington St. Bridge Replacement over the Boston Inner Harbor” owned by MassDOT Highway Division.

The foundation works consist in the execution of 40 drilled shafts with 6 feet diameter and rock socket with 5.5 feet diameter, with lengths ranging from 63 to 95 feet. The drilled shafts are excavated from temporary cofferdams installed at the location of the five new piers of the bridge.