Earthquakes: Fuel Tank - Anchoring

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Unanchored fuel tanks can be easily moved by flood waters, posing serious threats not only to you, others and your property, but also to public safety and the environment. An unanchored tank outside your property can be driven into your walls by flood waters, or it can be swept downstream, damaging other houses. When an unanchored tank in your basement is moved by flood waters, the supply line can tear free and your basement can be contaminated by oil. Even a buried tank can be pushed to the surface by the buoyant effect of soil saturated by water.

One way to anchor a fuel tank is to attach it to a large concrete slab whose weight is great enough to resist the force of flood waters. This method can be used for all tanks above ground, both inside and outside your property. You can also anchor an outside tank by running straps over it and attaching them to the concrete slab by using turnbuckles.

 

Benefits of Using This Mitigation Strategy

  • Helps to prevent damage and contamination to a structure and neighboring structures
  • Helps to protect public health and safety, as well as those of the structure’s occupants, in addition to protecting the environment
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Tips

Keep these points in mind when you anchor a fuel tank:

  • If you prefer not to do this work yourself, you can have a handyman or contractor anchor your tank.

Estimated Costs

Anchoring a 1,000-gallon fuel tank to a concrete base will cost approximately $300 to $500.

Technical Information Provided by FEMA





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