Levee Design

Standard levee design criteria were established in FEMA 259 to provide a conservative design while eliminating several steps in the USACE design process, thereby minimizing design cost:

  • Minimum settled levee height of 6 feet
  • Minimum levee crest width of 5 feet
  • Levee floodwater side slope of 1: 2.5
  • Levee land side slope (varies)
  • One foot of levee freeboard
cross section of a typical residential Levee Design