Download - Flood maps – Modeling a levee break
![Page 1: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/1.jpg)
![Page 2: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/2.jpg)
![Page 3: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/3.jpg)
![Page 4: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/4.jpg)
![Page 5: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/5.jpg)
![Page 6: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/6.jpg)
![Page 7: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/7.jpg)
![Page 8: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/8.jpg)
![Page 9: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/9.jpg)
![Page 10: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/10.jpg)
![Page 11: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/11.jpg)
![Page 12: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/12.jpg)
Flood maps – Modeling a levee break
http://www.msa.saccounty.net/waterresources/stormready/default.asp
![Page 13: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/13.jpg)
Flooding• Urban flooding
– Paved areas and storm sewers increase runoff by inhibiting infiltration
– Rapid delivery of water to streams increases peak discharge and hastens occurrence of flood
• Flash floods– Local, sudden floods of large
volume and short duration– Typically triggered by heavy
thunderstorms
![Page 14: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/14.jpg)
Flooding• Flood control– Dams designed to trap flood
waters in reservoirs upstream and release it gradually over time
– Artificial levees designed to increase capacity of river channel
• Works well until stream overtops artificially raised levees, leading to extremely rapid flooding and erosion
– Wise land-use planning, including prevention of building within 100-year floodplains, is most effective
![Page 15: Flood maps – Modeling a levee break](https://reader036.vdocuments.mx/reader036/viewer/2022062300/56649dd35503460f94aca323/html5/thumbnails/15.jpg)
Real-time river data
http://cdec.water.ca.gov/river/rivcond.html
http://cdec.water.ca.gov/river/americanStages.html