Photo Credit: Courtesy of Lee Ross (Taken August 25)
Tappan Zee Constructors, LLC (TZC) continued installing structural steel girders for the New NY Bridge project this week. Smaller girder sections were lifted into place by cranes from the Rockland trestle near the South Nyack shoreline. Local ironworkers then bolted together the steel blue girders and cross beams that will support the new bridge’s concrete road deck.
The I Lift NY super crane will continue placing larger girder assemblies next week and beyond, averaging two placements a week. A total of 31 miles of steel girders cumulatively weighing more than 100,000 tons will be installed for the new twin-span bridge.
TZC will continue the second stage of dredging operations near the Westchester shoreline as part of the preparation for removing the existing bridge and completing the landing of the new southern span. Dredging is allowed during a three-month period from August 1 to October 31 in specified locations and will be conducted 24/7 to complete the required dredging during the short window of time. The window was established to avoid impacting migration and spawning patterns of endangered sturgeon and other fish species.
The installation of foundations for noise barriers along the southbound Thruway between the South Broadway bridge and River Road in S. Nyack continues. The work involves drilling holes into the soil to install the foundations. After the foundations are installed, concrete panels that form the noise barriers will be installed. The barriers will be treated with sound-absorbing material to further reduce traffic noise to the nearby community.