Future New York - The Dryline – BIG’s vision to save New York City

The Big U is a protective system that encircles Manhattan, responding to the needs and concerns of the island’s diverse communities. Stretching from West 57th Street south to The Battery and up to East 42nd Street, the Big U protects 10 continuous miles of low-lying geography that comprise an incredibly dense, vibrant, and vulnerable urban area. The team’s approach is rooted in the two concepts of social infrastructure and hedonistic sustainability. The Big U not only shields the city against floods and storm water; it provides social and environmental benefits to the community, and fosters an improved public realm. The team envisions three compartments that function independently to provide flood protection. Each compartment comprises a physically discrete flood-protection zone that can be isolated from flooding in adjacent zones. At the same time, each presents opportunities for integrated social and community planning. The compartments work in unison to protect and enhance the city, yet each compartment’s proposal is designed to stand on its own.

The proposal consists of separate but coordinated plans for three contiguous regions of the waterfront and associated communities, regions dubbed compartments. Each compartment comprises a physically separate flood-protection zone, isolated from flooding in the other zones, but each equally a field for integrated social and community planning. The compartments work in concert to protect and enhance the city, but each compartment’s proposal is designed to stand on its own. Each compartment was designed in close consultation with the associated communities and many local, municipal, state and federal stakeholders; each has a benefit-cost ratio greater than one; and each is flexible, easily phasable, and can be integrated with in-progress developments along the City’s waterfront.

Bridging Berm provides robust vertical protection for the Lower East Side from future storm surge and rising sea levels. The Berm also offers pleasant, accessible routes into the park, with many unprogrammed spots for resting, socializing, and enjoying views of the park and river. Both berms and bridges are wide and planted with a diverse selection of salt tolerant trees, shrubs and perennials, providing a resilient urban habitat.

Between the Manhattan Bridge and Montgomery Street, deployable walls are attached to the underside of the FDR Drive, ready to flip down to prepare for flood events. Decorated by neighborhood artists, the panels when not in use create an inviting ceiling above the East River Esplanade. At night, lighting integrated into the panels transforms a currently menacing area into a safe destination. Panels can also be flipped down to protect from the elements, creating a seasonal market during the winter.

The east and west boundaries of the Battery were key inlets during Hurricane Sandy, allowing floodwaters to rush into Lower Manhattan and shut down the nation’s – and the world’s – premier financial district. Enhancing the public realm while protecting the Financial District and critical transportation infrastructure beyond, the Battery Berm weaves an elevated path through the park. Along this berm, a series of upland knolls form unique landscapes where people farm, sunbathe, eat and engage with world class gardens.
http://www.citiesofthefuture.org/manhattans-big-u-by-big/

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