Project Experience

Specialized Technical Services

I-66 Transform

I-66 Transform

The widening of the I-66 westbound lanes and the associated bike/shared use path required the construction of multiple retaining walls. Due to the required wall heights and existing right of way constraints, a double post and panel wall was designed. The wall system...

M6 Grand Rapids South Beltway Bridges

M6 Grand Rapids South Beltway Bridges

M6 Grand Rapids consists of 187-ft long S02 and 223-ft long S03 simple span bridges with twin box girder bridge superstructures. These bridges required the replacement of the existing superstructure which had plate girders as steel erection issues were experienced by...

Arthur DiTomasso Memorial Cable-Stayed Bridge

Arthur DiTomasso Memorial Cable-Stayed Bridge

Arthur DiTomasso is a 300-ft main span cable-stayed bridge in the city of Fitchburg, MA. It crosses both the Nashua River and the Boston and Maine Railroad tracks. It has a deck width of 45 feet and serves 2 lanes of traffic. Sena Kumarasena, Ph.D., PE served as the...