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9.A. - Page 14 <br /> San Mateo County, California CCAMP <br /> q p <br /> San Francisco Bay Area Coastal Study <br /> October 2014 <br /> The San Mateo County shoreline is <br /> part of the San Francisco Bay Area <br /> • <br /> Coastal Study conducted under the i . - <br /> Federal Emergency Management F042 0071 an <br /> Agency's (FEMA) California Coastal Fran Sa:sco <br /> '042 0061 y <br /> Analysis and Mapping Program _ <br /> (CCAMP). This study will revise - <br /> and update flood and wave data <br /> included in the National Flood aoas 0044 0063 <br /> --::, <br /> Insurance Program (NFIP), Flood <br /> Insurance Study (FIS) reports, and <br /> 0 131 0132 0151 1 ! : a 7 [o'i17717 1 <br /> Flood Insurance Rate Map (FIRM) <br /> panels. �o , ; WEI <br /> Coastal flooding along the bay <br /> 0134 0153 0154 oisa 0159 0178 0179 usi + . Valli <br /> shoreline is a product of local still --z • <br /> water levels ( SWELs) and waves. ipi, Coastal SFHA <br /> 0166 0167 0186 0187 0191 <br /> SWELs include the effects of tides, Impacted Panels <br /> storm surge, and riverine discharges, Communities <br /> dr and exclude local variations due to 0168 - , <br /> ., 0169 0188 0189 0193 0194 a <br /> waves and wave set -up. The waves <br /> t i <br /> within the bay originate from two „ 0 <br /> sources, wind- driven waves that are 4 0301 0306 0307 0326 06' <br /> . 1 0302 <br /> generated locally during strong wind Nim•i---:-_'.::•:. <br /> events, and ocean swells that enter <br /> the bay through the Golden Gate. The Sara .. r . - <br /> interrelationship of SWEL and waves, <br /> and their combined flood hazard <br /> effect, vary along the San Mateo <br /> County shoreline. The analyses rely on a combination of along with the local topographic data, <br /> regional -scale hydrodynamic models are used to evaluate the location and <br /> The coastal study is guided by FEMA's and localized one - dimensional (1 -D) extent of revised coastal Special Flood <br /> 2005 Guidelines for Coastal Flood wave models to calculate elevated Hazard Areas (SFHA) as well as the Base <br /> Hazard Analysis and Mapping for the SWELs, wave heights, and overland Flood Elevations (BFEs). <br /> Pacific Coast of the United States. wave propogation. These analyses, <br /> California Coastal Analysis <br /> ovpdmi, and Mapping Project <br /> 5 T www.r9coastal.org <br /> �' <br /> '°� nr, � � Contact: <br /> ��' /.S Kathleen Schaefer <br /> - 4Ivo sE FEMA Engineer <br /> kathleen.schaefer @fema.dhs.gov <br />