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SFPUC hears sea level rise briefing; staff recommends 36-inch planning baseline for 2100
Summary
SFPUC staff briefed commissioners on citywide sea-level-rise guidance and how it will be applied to the Source System Improvement Program (SSIP), recommending infrastructure planning toward a static 36-inch mean sea-level rise by 2100 and noting potential operational vulnerabilities to salt intrusion and storm surge.
Emilio Cruz, assistant general manager for infrastructure, told the Public Utilities Commission on Oct. 14 that city planning now uses five scenarios and multiple time horizons to assess sea-level-rise risk and to inform the SSIP.
Cruz said the citys guidance looks at short (2030), mid (2050) and long (2100) horizons and that the committee that developed the guidance recommended using a 36-inch mean sea-level rise as a design baseline for long-lived infrastructure.
"There's a recommendation that maybe we look at this mean level rise of 36 inches for our 2100 design," Cruz said,…
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