1 / 31

Santa Maria River Levee

Santa Maria River Levee. Cook & Broadway Santa Maria 1914. Santa Maria River Levee. 26 Miles Compacted Sand Rock Slope Protection Facing. Santa Maria. Guadalupe. Levee Cross Section. Base Road. Compacted Sand.

tryna
Download Presentation

Santa Maria River Levee

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Santa Maria River Levee Cook & Broadway Santa Maria 1914

  2. Santa Maria River Levee • 26 Miles Compacted Sand • Rock Slope Protection Facing Santa Maria Guadalupe

  3. Levee Cross Section Base Road Compacted Sand City River x x x Rock Slope Protection

  4. SM River Levee Quick Facts • Built 1959 – 1963; Part of Santa Maria Project • Built by Feds – US Army Corps of Engineers • Designed to a flow of 150,000 cfs • Owned and Operated by Santa Barbara County Flood Control District

  5. So What is the Problem? • River Flows 20-25 Feet Per Second • Failure is from Below (Scour) • Rock Facing is Inadequate (18” thick)

  6. Santa Maria River Damage History • 1966 – Revetment Damages • 1969 – Near Breach • 1978 – Revetment damages • 1983 – Revetment damages • 1995 – Revetment Damages • 1998 – Total Breach, other Revetment Damage • 2001 – Revetment Damage

  7. SM River Levee – Critical Areas Suey Rd East of Landfill

  8. Levee Break Inundation Area – Corps of Engineers March 1980 “Supplement to Design Memorandum 2” Suey Road Breach

  9. Santa Maria River Levee – Suey Breach Inundation Breach Point

  10. Levee Break Inundation Area – Corps of Engineers March 1980 “Supplement to Design Memorandum 2” Bradley / SM Landfill Breach

  11. Santa Maria River Levee – SM Landfill / Bradley Breach Inundation Breach Point

  12. Historic Photos – 1966 - 1969 Below – SM Levee in 1966 Failed Section Above – SM Levee in 1969 Note Flow Patterns

  13. Santa Maria River Levee - 1969

  14. Santa Maria River Levee1998

  15. 1998 Breach – North Levee • Meandering Flows Impinge in Levee • 1000 feet of Levee lost • Flow was less than 30,000 cfs • Breach Plugged in 24 hours

  16. 1998 Breach – North Levee

  17. SM River Levee Remedial Efforts

  18. “Low Tech Groins” - 2005

  19. USGS Topo Map – Santa Maria Valley

  20. 3-D View of Santa Maria Valley

  21. Questions

  22. Where your property taxes go...

  23. Scan 1969 report pictures / stories

  24. Questions

More Related