![]() At least 20,000 residents are expected to live on the island by 2035.Ĭlimate scientists, however, commonly try to predict sea rise out at least to the year 2100, a time when some current schoolchildren could be octogenarian residents of the island.Įvery contemporary climate model predicts that, even with deep carbon reductions starting this decade, several feet of sea rise are locked in. Yesica Prado / San Francisco Public PressAfter years of planning, construction has started on residential towers with sweeping views of San Francisco and the Bay Area. “When you put together significant infrastructure, you don’t want to have to maintain it for about that time,” Trivedi said. He said in a recent interview that the most built-up parts of the island should be safe from sea rise through at least 2070. Fifty years or so is a reasonable planning horizon for new developments, he added, and additional phased seawall construction can help future generations stay a step ahead of ever-higher tides. Storm drains, soil grading and landscape and open-space improvements would add about $120 million.ĭilip Trivedi, the site’s project manager with international engineering firm Moffatt and Nichol, has been touting the consortium’s efforts for more than a decade. A 2011 report by the city of San Francisco, which includes Treasure Island, estimated that “geotechnical stabilization” measures would cost $137 million. The development group’s director, Bob Beck, did not return multiple emails and phone calls regarding costs for this work. Improvements include raising some of the land by several feet, preparing a buffer zone for future levees and pumps, and setting aside low-lying open space that could convert to floodable marshland as higher bay waters spill onshore. All told, the $6 billion development would be home to 20,000 people or more.Įngineers for the public-private consortium transforming the island, Treasure Island Community Development, say they are pursuing aggressive sea rise adaptation strategies. Townhomes, retail space and a waterfront transit hub are also in the pipeline. Another, for families and unhoused veterans, is nearly complete. On Treasure Island, a flat tract of 20th-century landfill with epic bay vistas, workers have poured the foundation for a 22-story tower, the first of six planned high-rise buildings, and broken ground on an affordable housing complex. Meanwhile, developers are busy building - and telling the public that they can mitigate this one effect of climate change, despite mounting evidence that it could be a bigger problem than previously believed. But no one knows whether their ambitious efforts will be enough to keep newly built waterfront real estate safe in coming decades. Sea level rise is forcing cities around San Francisco Bay to weigh demand for new housing against the need to protect communities from flooding. Builders say they can solve this dilemma with cutting-edge civil engineering. Navigating Homelessness: Which Way Home?. ![]() Solving Homelessness: Ideas for Ending a Crisis.Driving Home: Surviving the Housing Crisis.Coercive Control: Abuse That Leaves No Marks.Coastal Flood Risk Community Open House pamphletįor more information, contact the Sussex County Environmental and Flood Plain Manager, Mr. ![]()
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