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Flood Damage Reduction Making Stormwater Management Systems Reduce Flood Damages

Flood Damage Reduction Making Stormwater Management Systems Reduce Flood Damages D. Leslie Miller, P.E. Flood Preparedness Program Manager. Fighting Floods – “So what” Factor…. March 2008 Cape Girardeau, MO successful flood fight – raised levee height with sandbags

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Flood Damage Reduction Making Stormwater Management Systems Reduce Flood Damages

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  1. Flood Damage Reduction Making Stormwater Management Systems Reduce Flood Damages D. Leslie Miller, P.E. Flood Preparedness Program Manager

  2. Fighting Floods – “So what” Factor…. March 2008 Cape Girardeau, MO successful flood fight – raised levee height with sandbags May 2001 Davenport, IA successful sandbagging flood fight of John O-Donnell Stadium May 2002 Crystal City, MO successful sandbagging flood fight of Dairy Queen

  3. PerspectiveKeep rain as close to where it falls…even when it exceeds stormwater retention system designs…. Design system so they can safely retain a much larger volume of run off…by using emergency operations….

  4. Basics Design Plan Rehearse

  5. Basics – Why, where, what, when, how and who … Flood Fight Design & Plan…then Rehearse…. • Right & legal priority • Specific location & access (Real Estate agreements) • Coordinated Emergency Operations • Warning & triggering • Collaborative design • Identified Resources • Assigned Responsibilities • Remember to cover preparation, prevention, response and recovery • Link it to permanent mitigation

  6. Some reasons for designing a stormwater system to accommodate emergency operations • Provides an opportunity to convert new flood science, technology, historical and anecdotal accounts into a cost, time and resource effective way of reducing flood related damages • Becomes part of community flood fight design and plan • Allows neighbors to contribute (planning, training, exercising, stockpiling…placing…removing) • Builds a collaborative vision (changes stagnant feature into dynamic possibilities) • Increases chance of successfully reducing flood damages beyond the stormwater system

  7. Stormwater system design considerations to accommodate emergency operations • Modifications to new and existing retention structures • Assess how much increase storage capacity is available • Embankment vs. walls • Natural vegetated crowns vs. four season surface • Width of crown for access and placement of temporary height and length extention • Include worst case assumptions about material and processes used to place and remove the temporary structure • Spillway or overtopping back slope protection

  8. Flood Fight Tools To Consider • Sandbags • Baskets • Geotechnical Grids • Impervious Fabrics • Water Filled Bladders • Water Weighted Floaters • Barricades • Agricultural Products and Containers • Pumps • Web Sites

  9. Flood-Fighting Structures Demonstration and Evaluation Program • US Army Corps of Engineers • Engineering Research and Development Center • Laboratory and Field Testing in Vicksburg, Mississippi • ERDC TR-07-3 Report – July 2007 • Evaluated 4 foot high level of protection: • Sandbag Levee • Hesco Bastion Concertainer Levee • Rapid Deployment Flood Wall (RDFW) • Portadam Levee

  10. Typical Pyramid Sandbag Placement 3 to 1 Base/Height Ratio

  11. Sandbagging 2009

  12. Super Sacks – One Ton Bag

  13. Folded Plastic Barrier – Filled with Sand

  14. Hesco Baskets – Jamestown, ND - 2009

  15. Portadam Hydrostatic Loading Creates Seal to Stream Bed

  16. Water Inflated Flood Barriers – FloodWalls™

  17. Water Filled Barriers – Tiger Dam System

  18. Mount Prospect, Illinois - 2007

  19. Muscle Wall - Testing

  20. RDFW Tied Into Temporary Levee Jamestown, ND - 2009

  21. Researching – Flood Barriers using Agricultural Products

  22. Portadam Pallet & Plastic Flood Fight Design Hydrostatic Loading

  23. Summary • Know why – stay committed • Write it down – get everyone involved • Pick the right tools – one(s) you believe will work for your site and circumstances • Make it fun – rehearse your plan • Include everyone in your plan • Play with your “right tools” • Celebrate together…cookies and milk anyone

  24. http://www.metalithh2o.com/assets/pdfs/USACE_NonFed-Levee-Owners-Manual_Mar06.pdfhttp://www.metalithh2o.com/assets/pdfs/USACE_NonFed-Levee-Owners-Manual_Mar06.pdf http://chl.erdc.usace.army.mil/ffs Corps Information - Web Sites

  25. Flood Fight Technology - Web Sites(In order of presentation) • http://hesco-bastion.com/ • http://www.geocellsystems.com/index.htm • http://www.portadam.com/index.html • http://www.aquafence.com/index.html • http://www.aquadam.com/index.htm • http://www.floodwalls.com/FloodWalls/index.htm • http://www.hydroresponse.com/wipp.htm • http://www.usfloodcontrol.com • http://www.hydroresponse.com/flood_barrier.htm • http://www.hydroresponse.com/watergate.htm • http://www.hydroresponse.com/floodgate.htm • http://www.musclewall.com

  26. Where do “you choose” to go from here? For more information about flood fight design, planning and tools, please have your state or county Emergency Management Office contact me and I will get you in contact with the Corps office serving your area: D. Leslie Miller, P.E. Flood Preparedness Program Manager Readiness Branch (CENWP-OD-E) Portland District, U.S. Army Corps of Engineers 333 SW 1st Avenue Portland, Oregon 97204-3495 503-808-4400 d.les.miller@usace.army.mil

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