Floodwalls Vs Sandbags to Protect Against Floods

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75% of the $5. 3 BILLION in annual flood damage is from floodwaters  More

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Added: February 27, 2008 This Presentation is Public 
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Slide1: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide2: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide3: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide4: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide5: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide6: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide7: Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide8: US Flood Damage Flexible, Robust, Storable, Temporary Flood Fighting Barriers


Slide9: US Flood Damage $5.3 Billion Annually Flexible, Robust, Storable, Temporary Flood Fighting Barriers


100 Year Flood Trends NOAA: 100 Year Flood Trends NOAA


The Problem : The Problem An estimated 75% of all flood damage is caused by water less than 3 feet deep


The Problem : The Problem An estimated 75% of all flood damage is caused by water less than 3 feet deep Single most used protection from this damage is temporary sandbag dikes


The Problem : The Problem An estimated 75% of all flood damage is caused by water less than 3 feet deep Single most used protection from this damage is temporary sandbag dikes $158 Million spent on sandbags to protect New Orleans from Katrina


Typical Solution to the flooding issue : Typical Solution to the flooding issue Currently 300 foot Sandbag Wall 56 - 5 ton truck loads of sand 700 Man hours 7000 bags Shovels, tools, logistics Disassembly clean-up and landfill disposal TOTAL COST $62,550 Total Cost $62,550 Sandbags Set-Up Manhours


An Alternative Solution Floodwalls: An Alternative Solution Floodwalls 300’ Floodwalls Barrier 20 -A5 Units (148 lbs. ea) 14 Manhours (5+fill) Firehose and Water 1 Pickup Truck 100% Reusable (No Environmental issues) Total Cost - $36,100


Floodwalls - Technical: Floodwalls - Technical 3mm thick Ripstop fabric Impregnated & coated 2 sides EPDM compound All joints & seams vulcanized (no glue) Heat cured oxygen free atmosphere Pressure tested twice - before & after fill coupling installation


Standard Units: Standard Units 4 Standard Shapes Free standing - 3 Wall supported - 1 4 Standard Lengths - 2, 3, 4, & 5 meters Protective heights - up to 5’6”+ Residential units - 18”- 24” depth, 3’- 20’ length


USACE - ERDC: USACE - ERDC


USACE ERDC: USACE ERDC


USACE ERDC: USACE ERDC


USACE ERDC: USACE ERDC Test Result Comparison Total Man Minutes Leakage Manhours per foot gpm/foot


Cost Analysis: Cost Analysis Sandbags 56-5 ton truckloads of sand 700 Man-hours 7000 Sandbags Shovels, Tools, Logistics Disassembly, clean-up, disposal One Use Cost $62,550 10 Use Cost $625,500


Cost Analysis: Cost Analysis FloodWalls 18 A5 Units 14 Man-hours Fire hose and Truck 1 Pickup Truck 1st Year Cost = $36,100 Per cost use =$6,300 @ 10 uses Ten Year Cost = $63,100


Floodwalls Strengths: Floodwalls Strengths


Key Benefits: Key Benefits Cost Effective Alternative to Sandbags Patented Design Deployed, Filled on-Site, In-Place in 1- 3 man minutes per foot. Custom Units Available Can Be Emptied, Rolled, Stored and Reused! – Projected Life 20+ Years Tested by the USACE at their ERDC


Financial Considerations /Options : Financial Considerations /Options Capital Purchase (<$150/ft) Financing Available Leasing Program Standard - 60 month program Special - 12 month leasing program available for local, state and federal agencies and municipalities Service Contracts We store, deliver, deploy, redeploy and re-store


Next Steps: Next Steps Choose a Specific Application Design the System Cost the Application Project the Costs Over Time Propose the Solution Implement


Have Questions, Need More Information?: Have Questions, Need More Information? Contact: Doug Shackelford 202-537-1388 Richard A. James 202-496-5312