This year's Art Basel/Design Miami was a wash. The tallest stilettos could not save feet from floodwaters that inundated streets and forced partygoers under small tents. Even when it's not raining, water bubbles up through stormwater grates and sewers, a result of the city's porous limestone bedrock. Miami Beach is a barrier island that is routinely battered by hurricanes and floods. With global warming, the bad floods will only get worse. The U.S. Army Corps of Engineers, NASA, and NOAA predict sea level rise between eight inches and six feet by 2100. For these reasons, Harvard GSD's newly established Design Office for Urbanization selected Miami Beach as its first focus site. Though unaffiliated with Harvard, a recent Florida architecture grad would make a great contribution to the program. Designer Isaac Stein, at West 8's New York office, envisions a solution for incorporating rising seas into Miami Beach's urban design, Vanity Fair reports. While completing an undergraduate degree in architecture at the University of Miami, Stein drafted a plan for a mangrove forest, raised buildings, canals, and other design interventions that will bend to, not fight, the rising seas. The plan focuses on South Beach proper, from 5th to 15th Streets. One of Miami Beach's main thoroughfares, Alton Road, would be raised on stilts to accomodate floodwater. Trams would replace cars, and bike lanes would be installed along Washington Avenue, roughly parallel to and a few blocks inland from the Atlantic. Historically, Miami Beach's western (bay) side was lined with mangroves. Stein's plan restores the mangrove forest to provide a natural buffer against rising water. Canals would be cut in the medians Michigan, Jefferson, and Lenox Avenues. The resulting fill could be used to raise buildings and roads 1.5 feet above grade, would safeguard the city against six feet of sea level rise.
Posts tagged with "flood resilience":
Major cities in the United Kingdom such as London and Newcastle have adopted a gentler approach to flood resilience—harnessing features of the existing landscape instead of erecting fortifications. This ethos is embodied on King’s Road, an artery of Newcastle University in the Northeast of England, where permeable paving absorbs, filters and stores rainwater, while rainwater planters re-emit this moisture into the atmosphere through evapotranspiration. Green roofs throughout the campus pull double duty, moonlighting as absorbent surfaces that reduce rainwater runoff and the carbon footprint while insulating the building against heat loss. Also a feature of the Herne Hill Highline Project in south London, where 22 green roofs run parallel to the River Effra, they have prevented flash floods that used to inundate the sewers and snarl local drainage systems. The New Derbyshire Pocket Park in Bethnal Green, London, is flood-proofed by virtue of a sustainable urban drainage system that slows surface water run-off through retention and storage, while bespoke planters dotted throughout the park also capture rainwater. In some cases, leaving nature to its own devices—with a few corrective prods from a landscape architect—is best. Built on the floodplain of the River Thames, the Barking Riverside development, which consists of 10,000 new homes, office spaces, schools and more, has relinquished part of the land to the river—better to be safe than sorry. Meanwhile, the flood-conscious landscaping provides areas for recreation, picnic zones, community gardens, and walking trails. All surface water run-off in the area is channeled towards the parkland to prevent river overflow, and is incrementally discharged into the creeks at low tide. Also in London, formerly flood-prone Church Street and Paddington Green have been primed to fend off rainfall greater than the volume of an Olympic-sized swimming pool with a 500 percent increase in trees and the installation of a rain garden, in which select plant species are configured for optimal soil infiltration to reduce run-off.