Based on studies conducted to comply with new federal guidelines, what problems are typically found within levee systems?
Erosion the breakdown of levee structures can be caused by fast-moving flows, waves and recreational use of the levees. Underseepage when rivers reach flood stage, pressure builds up in layers of sand and gravel underground, forcing water under the levees and out of the ground. In this case, the integrity of the levee can be severely compromised. This water can erode the levee foundation, leading to failure. Through-seepage seepage through the existing levee that can erode the interior of the levee.
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