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Perimeter Flood Barrier - Muscle Walls

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What is it?

Gravity walls are free standing barriers that rely on their self-weight to generate friction to resist lateral flood loads. This classification of walls includes bags and ridged containers that can be filled with sand or water. Gravity walls are transported to site empty and then filled on site with sand or water. Gravity wall deployment requirements vary substantially by system and scale of installation.

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What assets can be protected?

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Project Phase?

  • Emergency

Implementation Time?

Implementation of gravity walls varies based on type of system and scale of application.

Useful Life?

Useful life varies substantially by system; however, a shelf life of 25 to 50 years is achievable with most systems (dependent on amount of use)

Preliminary Costs?

 $$

Costs for gravity wall flood barriers vary substantially based on the type of system and scale of installation. Water-filled systems for 24” tall walls are approximately $50/LF and exceed $500/LF for walls approaching 96”. Soil-filled systems for 24” tall walls are approximately $25/LF and approach $50/LF for 84” walls.

Benefits

  • Easy set-up; adapts to terrain

  • Customizable, reversible, reusable

  • Rigid; stackable to maximize storage space

  • One 4-ft system can replace approx. 468 sandbags

Limiting Factors

  • Flood water depths for these systems varies widely, but most systems don’t retain more than 6-feet of flood water.

  • Ground condition requirements vary per system

Learn More

Quick Reference Guide

The Quick Reference Guide provides a detailed summary available for printing and additional information for future reference.

External References

  • Flood Defense Group

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