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6.A. - Page 158 of 251 <br />Impacts of Climate Change on Redwood City <br />Figure 4: Projected Sea -Level Rise (3.3 feet and 1 percent Annual Chance Storm) and Erosion (4.5 feet and 1 percent <br />Annual Chance Storm) - San Mateo County Shoreline27 <br />Pachca Muntcipol Pier \ <br />Pacifica <br />San <br />[inda Mar <br />—.1 6�_ju Montara <br />fit,ii—ld <br />Marine Reserve T <br />Brisbane <br />Ih 101 oyster Point <br />'Cisco " <br />_ h <br />n <br />no � �. SF Airport c� <br />sr• <br />illbrae m S <br />Burlin Cayote Point <br />n <br />Hillsborough -S <br />�g till <br />Belmont <br />5 Air <br />92 San <br />PIEW Point Harbor ` <br />Surfer's Beach <br />h ' <br />Half Moon Bay <br />Poplar 8eoc <br />Legend <br />Future Erosion' <br />Illlll� Mid -Level Scenari <br />Electnc Substation <br />Wastewater Treats <br />'Erosion impacts are est <br />feet of sea level rise, but <br />not consider shoreline ai <br />""Estimated impacts are <br />annual chance storm or <br />of a storm occurring in ai <br />plus addiiional 3.3 feet c <br />Mat�dge <br />Redwood City <br />8alr [stand <br />Wet[nnds <br />�� DumbaKai <br />a <br />air oaks - a[ey[onddny <br />. Menlo Park iala Alto <br />In 2018 the California Ocean Protection Council QPQ released updated Sea -Level Rise Guidance, which uses <br />"probabilistic-based"a projections and lays out an approach for developing adaptation strategies. The OPC <br />recommends using the projections included in Figure 5, below. Low-risk projections should be used for short-lived <br />infrastructure that is readily adaptable, such as trails. Medium -risk projections should be used for less adaptive, <br />more vulnerable projects such as housing developments. Extreme risk projections should be used for larger and <br />more complex infrastructure projects such as roads, wastewater treatment plants, and hazardous waste sites. <br />Figure 5: San Francisco 2018 Probabilistic Sea -Level Rise Projections28 <br />W <br />W <br />a � <br />W e LM RISK °P <br />W <br />LU MEDIUM RISK <br />J <br />a EXTREME RISK u <br />W m w <br />w iy <br />LL <br />4 � <br />4 <br />Sn � <br />01 <br />2 � eu ao <br />o won o,� �1 1 <br />20#U t6S0 20515 2660 24Th 240U 200 2144 <br />'Probabilistic -based projections "associate a likelihood of occurrence (or probability) with sea -level rise heights and rates and are directly tied <br />to a range of emissions scenarios."18 <br />City of Redwood City Climate Action Plan 27 <br />463 <br />