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Northern CA Catastrophic Flood Response Plan

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Northern CA Catastrophic Flood Response Plan Northern CA Catastrophic Flood Response Plan Branch III Annex Community Profile: Branch III is comprised of Sacramento County (Division G) and San Joaquin County (Division H). Population: Total population in Branch III is 2,167,927. County Seats: Sacramento (Sacramento County) and Stockton (San Joaquin County) Geography: [Under development] Hydrology: [Under development] Rivers/Streams: Sacramento River, American River, Cosumnes River, San Joaquin River, Stanislaus River, Middle River, Mokelumne River, and Old River. Flood History: [Under Development; Add More Historical Information] Flood Risk: Branch III Population Branch/ Exposed in Exposed in Total County Population % Exposed Division 100 Yr Zone 500 Yr Zone Exposed Sacramento III / Div G 1,456,424 103,209 502,691 605,900 41.60% San Joaquin III / Div H 711,503 53,524 369,064 422,588 59.39% Total 2,167,927 156,733 871,755 1,028,488 47.44% Branch III Households Branch/ Exposed in Exposed in Total County Households % Exposed Division 100 Yr Zone 500 Yr Zone Exposed Sacramento III / Div G 526,086 35,883 185,886 221,749 42.15% San Joaquin III / Div H 222,277 16,458 121,693 138,151 62.15% Total 748,363 52,341 307,579 359,900 48.03% Branch III Annex Page 1 Northern CA Catastrophic Flood Response Plan Branch III Vacant Households Branch/ Vacant Exposed in Exposed in Total County % Exposed Division Households 100 Yr Zone 500 Yr Zone Exposed Sacramento III / Div G 41,475 1,909 18,968 20,877 50.34% San Joaquin III / Div H 18,454 1,542 12,113 13,655 73.99% Total 59,929 3,451 31,081 34,532 57.62% Branch III Number of Businesses Branch/ Exposed in Exposed in Total County Businesses % Exposed Division 100 Yr Zone 500 Yr Zone Exposed Sacramento III / Div G 52,179 2,154 27,072 29,226 56.01% San Joaquin III / Div H 22,567 1,732 13,340 15,072 66.79% Total 74,746 3,886 40,412 44,298 59.26% Branch III Unemployed (Age 16+) Branch/ Unemployed Exposed in Exposed in Total County % Exposed Division (Age 16+) 100 Yr Zone 500 Yr Zone Exposed Sacramento III / Div G 59,273 2,899 28,590 31,489 53.13% San Joaquin III / Div H 30,909 1,577 17,713 19,290 62.41% Total 90,182 4,476 46,303 50,779 56.31% Branch III Acreage Acres Acres Branch/ Total Acres County Total Acres Exposed in Exposed in % Exposed Division Exposed 100 Yr Zone 500 Yr Zone Sacramento III / Div G 627,876.74 230,590.19 69,314.82 299,905.01 47.76% San Joaquin III / Div H 911,719.74 305,482.28 161,008.90 466,491.18 51.17% Total 1,539,596.48 536,072.47 230,323.72 766,396.19 49.78% Local Maintaining Agencies: See Flood Control Features Overview map (Page 22) State Plan of Flood Control Non-State Plan of Flood Control County LMA LMA Name LMA LMA Name Number Number RD0003 Grand Island RD0317 Brannan Island RD0341 Sherman Island RD0800 Cosumnes RD0349 Sutter Island RD0813 Ehrheardt Club RD0369 Libby McNeil RD1002 Glanville McCormack-Williamson RD0551 Pearson RD2110 Sacramento Tract RD0554 Walnut Grove RD2111 Dead Horse Island RD0556 Upper Andrus RD0563 Tyler Island RD0755 Randall RD1000 Natomas Branch III Annex Page 2 Northern CA Catastrophic Flood Response Plan State Plan of Flood Control Non-State Plan of Flood Control County LMA LMA Name LMA LMA Name Number Number RD1601 Twitchell American River Flood Control NA0001 District Brannan Andrus Levee NA0002 Maintenance District NA0005 City of Sacramento Sacramento River West Side NA0016 Levee District Sacramento County NA0050 (Structures) DWR Sacramento NA0055 Maintenance Yard (Structures) MA0009 Maintenance Area 9*** RD0001 Union Island RD0002 Union Island West RD0017 Mossdale RD0038 Staten Island RD0404 Boggs Tract RD0348 New Hope Tract RD0524 Middle Roberts Island RD0403 Rough and Ready Island RD0544 Upper Roberts Island RD0548 Terminous Tract RD2058 Pescadero RD0684 Lower Roberts Island RD2062 Stewart Tract RD0756 Bouldin Island RD2064 River Junction RD0773 Fabian Tract RD2075 McMullin Ranch RD0828 Weber Tract RD2085 Kasson RD1007 Pico-Naglee RD2089 Stark Tract RD1608 Smith Tract (Lincoln Village) RD2094 Wathall RD1614 Smith Tract RD2095 Paradise Junction RD2023 Venice Island San Joaquin RD2096 Wetherbee Lake RD2027 Mandeville Island RD2107 Mossdale RD2028 Bacon Island San Joaquin County Flood NA0017 Control and Water RD2029 Empire Tract Conservation District RD2030 McDonald Island RD2033 Brack Tract RD2037 Rindge Tract RD2038 Lower Jones Tract RD2039 Upper Jones Tract RD2040 Victoria Island RD2041 Medford Island RD2042 Bishop Tract RD2044 King Island RD2072 Woodward Island Branch III Annex Page 3 Northern CA Catastrophic Flood Response Plan State Plan of Flood Control Non-State Plan of Flood Control County LMA LMA Name LMA LMA Name Number Number RD2074 Sargent-Barnhart Tract RD2086 Canal Ranch RD2108 Tinsley Island RD2113 Fay Island RD2114 Rio Blanco Tract RD2115 Shima Tract RD2116 Holt Station RD2118 Little Mandeville Island RD2119 Wright-Elmwood Tract RD2126 Atlas Tract *** Maintained by DWR’s Sacramento Maintenance Yard Levee Miles: Non-State Plan Flood State Plan Flood Control Total Levee Lengths County Control Levee Lengths Levee Lengths (miles) (miles) (miles) Sacramento 184.5 272.3 456.8 San Joaquin 175.4 733.3 908.7 Total 359.9 1,005.6 1,365.5 Levee Vulnerabilities: See Levee Vulnerabilities Overview map (Page 35) Critical Points of Interest (POI) Serious Points of Interest (POI) Total County Erosion Seepage Stability Other Erosion Seepage Stability Other POI Sacramento 4 12 2 0 29 11 4 0 62 San 7 24 1 0 15 34 0 0 81 Joaquin Total 11 36 3 0 44 45 4 0 143 Flood Triggers: [Local flood triggers under development] CDEC River Gage Forecast Points: See Flood Control Features Overview map (Page 22) SACRAMENTO RIVER Top of Stages Peak Stage CNRFC County Name Levee and Date of ID# Monitor Flood Danger Elevation Record Sacramento I 30.68’ – Sacramento SACC1 34.0’ 25.0’ 31.0’ 32.0’ Street 02/19/86 Branch III Annex Page 4 Northern CA Catastrophic Flood Response Plan AMERICAN RIVER Top of Stages Peak Stage CNRFC County Name Levee and Date of ID# Monitor Flood Danger Elevation Record 43.40’ – Sacramento H Street SAMC1 47.5’ 40.0’ 42.8’ 43.8’ 02/19/86 SAN JOAQUIN RIVER Top of Stages Peak Stage CNRFC County Name Levee and Date of ID# Monitor Flood Danger Elevation Record 34.88’ – San Joaquin Vernalis VNSC1 37.3’ 24.5’ 29.0’ 29.5 01/05/97 24.40’ – San Joaquin Mossdale MOSC1 33.1’ 19.5’ 28.5’ 29.5’ 12/10/50 CONSUMNES RIVER Top of Stages Peak Stage CNRFC County Name Levee and Date of ID# Monitor Flood Danger Elevation Record Michigan 18.54’ – Sacramento MHBC1 13.2’ 7.0’ 12.0’ N/A Bar 01/02/97 48.50’ – Sacramento McConnell MCNC1 N/A 40.0’ 46.0’ N/A 01/02/97 MOKELUMNE RIVER Top of Stages Peak Stage CNRFC County Name Levee and Date of ID# Monitor Flood Danger Elevation Record Benson’s 21.69’ – Sacramento THTC1 N/A 12.0’ 17.0’ N/A Ferry 01/02/97 Dams: See Dams Overview map (Page 24) Dams in Total Non- Flood Zones County # of Jurisdictional Federal Illegal FERC Jurisdictional Dams 100 500 Yr Yr Sacramento 29 19 8 2 0 0 10 0 San Joaquin 19 7 11 1 0 1 2 1 Total 48 26 19 3 0 1 12 1 Folsom Dam (Sacramento County) – Folsom Dam and reservoir, operated by the U.S. Bureau of Reclamation, is located on the American River and is a part of the State Water Project in the central valley. The Folsom reservoir catches runoff from the extensive American River watershed and is a key flood control structure protecting the Sacramento metropolitan area. Branch III Annex Page 5 Northern CA Catastrophic Flood Response Plan Located about 25 miles northeast of Sacramento along the American River, Folsom Dam is a 340 foot high concrete dam flanked by long earthen wing dams extending to high ground at either end and holds over a million acre-feet of water in Folsom Lake. Although its primary function is flood control, Folsom stores water for irrigation and domestic use and electrical power generation. Transportation/Evacuation: Branch III is located in Caltrans District 3 (Sacramento) and Caltrans District 10 (San Joaquin). The following are transportation systems in Branch III. See Transportation Overview map (Page 21) Surface Transportation: Other National STRAHNET/ National Highway Major Intermodal Connectors (only County Highway System STRAHNET portions of roads) System Routes Connectors Routes US-50, SR-12, *Sacramento Intl Airport (served SR-70, SR-99, by existing NHS) Sacramento I-5, I-80 SR-104, SR- 120, SR-160 *Lathrop Rail Yard (E. Roth Rd, Airport Way, French Camp Rd) *Port of Stockton (Harbor St, Fresno Ave, Navy Dr, Charter *Sharpe General Way, Washington St) Depot * Stockton Amtrak Station (San SR-4, SR-12, San Joaquin I-5 *Stockton Naval Joaquin St, Lafeyette St, SR-99, SR-120 Communications Washington St) Station *Stockton Bus Terminal (Center St, El Dorado St) *Stockton Rail Yard (Anderson St, Diamond St, Mariposa Rd, Charter Way) Regional Transportation: Number Daily County Bus Transit System Major City/Area of Ridership Vehicles E-Tran Elk Grove 3,599 43 Sacramento Sacramento Regional Transit Sacramento 48,590 195 San Joaquin San Joaquin Regional Transit Stockton 12,954 92 Aviation Transportation: County Transportation Facility Type Flood Zone Sacramento Mc Clellan Airfield Airport Out of Flood Zone Branch III Annex Page 6 Northern CA Catastrophic Flood Response Plan County Transportation Facility Type Flood Zone Sacramento Franklin Field Airport 100 Year Flood Zone Sacramento Kaiser South Sacramento Hospital HP Heliport 500 Year Flood Zone Sacramento Rancho Murieta Airport 100 Year Flood Zone Sacramento Sacramento Executive Airport 500 Year Flood Zone Sacramento UC Davis Medical Center Tower ll HP Heliport
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