GM2 is providing consultant liaison engineering (CLE) services, under a multi-year CLE contract with CTDOT, for the rehabilitation of four Pan Am Railroad (PAR) bridges and one retaining wall in the City of Waterbury. GM2 also assisted with the survey of Bridge No. 04234R, enabling the consultant to develop timber tie dapping diagrams for the two westerly tracks.

Bridge 04234R over Freight Street is an open deck, four-span, riveted steel girder bridge which supports four tracks, three of which have been abandoned. The rehabilitation includes replacing deteriorated lateral gusset plates, web stiffeners, and lateral bracing, and replacing deteriorated rivets with new high strength bolts. The concrete abutments are being refaced with a concrete form liner finish. The retaining wall is being refaced with a concrete form liner finish, and a new concrete cap is installed, along with a new safety fence.

Bridge 09100R over Crane Street is being replaced with a single-track carrying superstructure with ballasted deck plate, floor beams and two girders seated on new elastomeric bearing pads. A new walkway with fiberglass grating and a steel handrail is being installed on the east side of the bridge.

Bridge 00600R over West Main Street Bridge is being replaced with a single-track carrying superstructure with ballasted deck plate, floor beams and two girders seated on new elastomeric bearing pads. A new walkway with fiberglass grating and a steel handrail is being installed on the east side of the bridge.

Bridge 09101R over drainage channel entails rehabilitation of a culvert via repairing spalls, hollow areas, and cracks, and installing riprap at the inlet.