Mill Dam Bridge – Centerport, NY (2005)Posted in Civil Services
Located between Mill Pond and Centerport Harbor, Mill Dam Bridge was once the site of a functioning mill. To keep this historic road intact GBI restored the bridge and its amenities. Before they could begin they had to install a steel sheeting coffer dam on both sides of the bridge and dewater the construction site with well points so that they could work in dry conditions. GBI then removed the existing bridge and abutments, constructed new reinforced concrete abutments, a pre-stressed pre-cast bridge deck, concrete barriers, asphalt approach ramps and street lighting. To keep the pond healthy GBI fabricated and installed wooden tidal gates which maintain Mill Pond’s water levels at low tide while allowing tidal flushing at high tide.