The $225 million North Dorchester Bay Combined Sewer Overflow Storage (CSO) includes construction of a two-mile long tunnel being built along the north shore of North Dorchester Bay in Boston. The project also includes construction of drop shafts, diversion structures, near-surface connecting pipes, a construction/access mining shaft, a pump station and an odor control facility. The $80 million pump station and odor control facility will be attached to the tunnel; the pump station has a capacity of 10 mgd.
Overview
PMA Role
PMA provided the Massachusetts Water Resource Authority (MWRA) project management support and change order and claims administration services.