Construction Management

Construction Management Services for the Croton Reservoir System

HAKS, as the Managing Joint Venture partner, is providing construction management services to the New York City Department of Environmental Protection for Construction Contract CRO-206, which involves the reconstruction of Croton Falls Dam, Croton Falls Diverting Dam and Cross River Dam in Putnam County, NY. Our scope of services includes project management, resident engineering inspection, project operations services, subcontracted expert and supplemental services.

The Croton Reservoir System supplies water to New York City and provides flood control for local communities. The dams and related structures, almost 100 years old, are being rehabilitated to facilitate maintenance, repairs and cost containment, and to assure a reliable water supply to New York City.

Major construction operations are being carried out at the three dams. At Croton Falls Dam, some 7,200 feet of post-tensioned anchors are being installed, the down stream face is being cleaned and refaced with an 8-inch thick reinforced concrete lining, and other work is being done on the spillway channel, weir, and bridge at the dam crest. At Croton Falls Diverting Dam, the intake tower and valve chamber are being removed and replaced, concrete repairs and rehabilitation will be done throughout. At Cross River Dam, the downstream dam face is being resurfaced with an 8-inch thick reinforced concrete lining and  more. Other major work includes installation of erosion and sediment control devices around the reservoir, reconstruction of top-of-dam roads, road relocations, temporary access roads, 140,000 cubic yards of rock excavation, dam spillway reconstructions, cofferdams, site drainage and more.

Throughout construction the HAKS Construction Manager coordinates at a number of levels essential to successful project completion. These range from coordinating reservoir water levels and security to assure uninterrupted water supply, to coordinating with local, state, regional and federal agencies.

Our preconstruction planning identified issues critical to the construction, its local impact, timely completion and project cost. These are scheduling, safety, coordination of work at the three sites, maintenance of water supply, cofferdam construction, connecting channel work, sediment control, and security. The Resident Engineering Inspection services we are providing include supervision and inspection of work performed at the construction sites, preparation of field change orders, processing of contractor's payments and other related services.