"The city will build Brooklyn's first " blue belt" - a "nature-based" flood management system that aims to manage stormwater and improve natural spaces - in the park, building on the Prospect Park Alliance's ongoing Lakeshore restoration projects. "This work means faster drainage, new rain gardens, restored wetlands, and nature-based flood protections that keep homes and streets dry," said Jeff Roth, Deputy Mayor of Operations. "This is government at its best, using science, partnership and shared purpose to meet the challenges of a changing climate.""
"Perhaps the most critical part of the project are improvements to the lake's drainage system so it can take on more water during large storms. "Right now, there's kind of a rudimentary mechanism where there's a 6-inch plank that [the Alliance] lifts up and [the water] slowly lowers," said Sangamithra Iyer, Chief of Blue Belts & Urban Stormwater Planning at DEP. It can take up to two weeks for the lake to lower significantly, she said."
The city will build Brooklyn's first blue belt in Prospect Park, a nature-based flood management system to manage stormwater and improve natural spaces. Design for the $68 million project has begun following a year-long drainage study of the park and surrounding neighborhoods. Key work will upgrade the lake's drainage to increase capacity and allow the lake to be lowered from up to two weeks to about 36 hours. Planned measures include faster drainage, new rain gardens, restored wetlands, and wildlife-protective drains to create space in the lake ahead of storms and reduce neighborhood flooding.
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