The Dryline

EXISTING BRIDGING BERM FUTURE: FULL BERM CONTEXTUAL AND AESTHETIC IMPACT American infrastructure traditionally has not been civic or accessible, but rather has been imposed on our cities at large scale with often terrible consequences for the urban experience. The BIG U balances the two: it is a protective ribbon that meets stringent regulations for safety and operation and also adds value through good design that accounts for local context, cultural and physical factors. Using ‘Compartment 1’ as an example, the undulating berm in East River Park will rise 15 feet to provide floodprotectionandconnect coastandcommunity.Ultimately, theBridgingBermwill capthehighway. The berms support diversenewplantings, provideenhancedprospectson thepark, andcreate thesocial spaces that residents have requested for their waterfront. The berm is shaped such that existing sportsfields can bemaintained. Wide landscaped bridges will connect the East River Park to the community. In addition to improving aesthetic impacts through landscaping, the Bridging Berm camouflages the adjacent six-lanehighway that isascar intheurbanfabricanddivorces the waterfront from the neighboring community. WATER: 100% of stormwater will be treated on-site during typical rain events through bioswales prior to being discharged to the East River. During storm events an ejector pump system will pump runoff up and over the levy walls to maintain a dry condition on the land-side of the levy. Stormwater quality will not be an issue. The only potable water demand throughout the BIG U would be irrigation water. Since the East River Park has almost no irrigation currently, the BIG U is designed for native and drought-resistant planting. The BIG U aims to maintain the nearly zero water demand baseline . Additionally, the BIG U connects underserved communities with waterfront access and delivers public amenities. For example, a River Bath will provide a much-needed swimming facility for the LES . RESOURCE & ENVIRONMENTAL PERFORMANCE Considering the BIG U is an urban intervention in predominantly a public park setting, it is inherently a low-energy and low- carbon project. One primary component of the design was the flood protection system for which the team attempted to utilize a passive earthen levy approach as much as possible. ENERGY: The major energy consuming feature is lighting for security and safety. By using LED lamps and carefully designing distribution and placement, the BIG U aims to reduce lighting energy demand by 30% below existing conditions and to contribute 50% of all lighting through solar panels integrated into lighting poles and lamps. ECONOMIC VIABILITY & COMPATIBILITY $500 mill will be incurred from flood damages in the next 50 years if no action is taken. Phase 1 proposal ($375 mill) decreases the total and severity of disaster damages. The segmented BIG U is flexible, able to incorporate various financing models. Leveraging local and government investment engages neighbors in developing protective measures that create tremendous economies of scale. The Big U aims to avoid each party (building owners, NYCHA, DOT, MTA) rebuilding just for itself, resulting in a chaotic set of changes that could prove destructive to the urban realm as a whole. A piecemeal approach would cost much more than a coherent plan and could also worsen economic disparity. The BIG U creates a more resilient, connected, equitable city. In C1, Lower East Side: deployable walls and an undulating berm will provide protection and social spaces for the community including the 95,000+ low-income, elderly, and disabled residents live there, predominantly along the East River. The flood protection in LES - East River Park protects $780,000,000 in potential damages (NPV) and costs less than half of that! With a design height of 15ft, the system has a benefit cost ratio of 2.08. In C2, Two Bridges: the net present value of avoided damages for the next 50 years would be $242m. In C3, the flood zone in this compartment includes over 60m SF of office space in the Financial District. The net present value of avoided damages for the next 50 years would be $1.912m. Construction cost and maintenance for the next 50 years would be less than 20% of that. HA14_KZAKM (REBUILD BY DESIGN - THE BIG U) BOARD 7