Fresh Creek Coastal Protection & Resiliency Project

In the event of storms or high tides, Canarsie’s Fresh Creek, an inlet of Jamaica Bay in Brooklyn, dumps water into the adjacent neighborhood’s storm sewer system, resulting in flooding and overflowing from the creek itself. To address the flooding into the shoreline sewer system, the Dormitory Authority State of New York (DASNY) and the Governor’s Office of Storm Recovery selected the joint venture of UrbanNY and KS Engineers to restore the storm sewer system draining into Fresh Creek by constructing tide gates over five storm sewers along 108th Street and reconstructing the Avenue M outfall.
The $14 million project installed new tide gate chambers within culverts flowing to Fresh Creek at Avenue K, Avenue L, Avenue M, Avenue N, and Seaview Avenue. The gates, or “flappers,” protect the exit point from the sewage pipelines into the creek. This helps prevent creek water from backflowing through culverts and allows the existing drainage system to function more efficiently. This important project helped the community adapt to the effects of climate change by reducing flooding during future storms and sea-level rise, and assisted the area in recovering more quickly during future storm events.
UrbanNY reviewed studies, policies, and assessments performed by city and state agencies and identified areas with the highest risk of climate change-related flooding, based on the rainfall events, storm surges, and sea level rises determined to be the most probable by the NYCDEP and GOSR. UrbanNY used science-based mapping of rainfall events, storm surges, and sea level rise projections to determine the design criteria for the coastal protection elements. Engineering solutions incorporated low-level barriers and green infrastructure. Other services included identifying living shoreline strategies for coastal protection, flood mitigation, and improved rainwater management. Hydrological models were used to test the effects of proposed solutions on drainage systems.
The Fresh Creek Coastal Protection Project was honored with a Gold Award by the American Council of Engineering Companies of New York’s 2023 Engineering Excellence Awards program. The project was recognized in the waste and stormwater category at the organization’s 56th Annual Engineering Excellence Awards Gala.
Dormitory Authority State of New York



