Located in the Town of Cortlandt in Westchester County, this NYSDOT-led flood mitigation project will elevate the Annsville Circle by four (4) feet and elevate a half-mile segment of Route 6/Route 202 by seven (7) feet, improving safety during high tides, heavy rains, and flooding from extreme weather events.
This contract encompasses the implementation of operational and safety enhancements at the intersection of US Rt 6/Rt 202/Rt 9 during the construction of a modern four (4) leg roundabout. Key construction features include the full-depth pavement reconstruction of the existing circle, realignment, and elevation of the approaching roadways to exceed the 50-year flood occurrence. Additionally, the project includes the installation of a new closed storm water drainage system, lighting improvements for nighttime safety, native landscape treatments, guide rail installations, and new pedestrian crosswalks and shared paths to connect Paddlesports Park with the Jan Peek Bridge over Annsville Creek.
This is among the first NYSDOT projects to use lightweight fill material made from recycled glass. This foamed glass is one of the most environmentally friendly lightweight fill materials available and will be manufactured locally. Its use is expected to reduce the construction schedule by up to a year.
Additionally, the project will use geosynthetic reinforced soil technology to stabilize the Hudson River embankment edges. This method involves using layers of materials like fabrics, grids, and meshes to strengthen the soil and hold it in its place. This technology is commonly used to support bridges, roads, slopes, and other structures requiring a stable foundation, including the nearby Popolopen Bridge. It will save valuable space and allow for two-way traffic to be maintained during most of the construction.