USACE Delta Seismic Risk.ppt
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1 Delta Outflow 48% Upstream Consump tive Use 31% CVP ‐ SWP Exports 17% In‐Delta Consump tive Use 4%
Transcript of USACE Delta Seismic Risk.ppt
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Delta Outflow48%
Upstream Consumptive Use31%
CVP ‐SWP
Exports17%
In‐Delta Consumptive Use
4%
Bay-Delta Region Major Faults
27%27%21%21%
10%10%
11%11%3%3%
4%4%
%%
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Pre-1880’s
Present Time
Levee Failure
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Due to Farming of the Delta Marshland Due to Farming of the Delta Marshland Due to Farming of the Delta Marshland Due to Farming of the Delta Marshland
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(Island subsidence between 10(Island subsidence between 10‐‐30 ft. deep)30 ft. deep)(Island subsidence between 10(Island subsidence between 10‐‐30 ft. deep)30 ft. deep)
SWP PumpsSWP Pumps
CVP PumpsCVP Pumps
SWP PumpsSWP Pumps
CVP PumpsCVP Pumps
SWP PumpsSWP PumpsSWP PumpsSWP PumpsCVP PumpsCVP PumpsCVP PumpsCVP Pumps
Sac RiverSac River
StocktonStocktonStocktonStockton
SacramentoSacramentoSacramentoSacramento
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50 levee breaks50 levee breaks6.5 earthquake6.5 earthquake
20 islands flooded20 islands flooded
SWP PumpsSWP PumpsSWP PumpsSWP PumpsCVP PumpsCVP PumpsCVP PumpsCVP Pumps
Sac RiverSac River
StocktonStocktonStocktonStockton
SacramentoSacramentoSacramentoSacramento
77
50 levee breaks50 levee breaks6.5 earthquake6.5 earthquake
20 islands flooded20 islands flooded
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Islands flood with fresh water0 – 6 hours: Salt water intruding into Delta12 – 24 hours: Salt water throughout Delta1 – 7 days: 9
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Animation Animation ––6.5 Magnitude Earthquake6.5 Magnitude Earthquake
Allows repair in vs. 3 years6 months 11
Requiring breach closures & slump restorationRequiring breach closures & slump restoration
SacramentoSacramento
StocktonStockton
SWP PumpsSWP PumpsCVP PumpsCVP Pumps 12
Rio VistaRio VistaHoodHood
Port of StocktonPort of
Stockton12” 12” -- 24” rock diameter 24” rock diameter 240,000 tons of rock stockpile240,000 tons of rock stockpile
Port of Stockton Loading Facility
Emergency Stockpiling & Levee ImprovementsEmergency Stockpiling & Levee ImprovementsEmergency Stockpiling & Levee ImprovementsEmergency Stockpiling & Levee Improvements
SacramentoSacramentoSacramentoSacramento
StocktonStocktonStocktonStockton
Suisun BaySuisun BaySuisun BaySuisun Bay
State & Federal State & Federal Pumping PlantsPumping PlantsState & Federal State & Federal Pumping PlantsPumping Plants
