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Levees and the National Flood Insurance Program Improving Policies and Practices (2013) / Chapter Skim
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Appendix A: Code of Federal Regulations Title 44: Emergency Management and Assistance, Section 65.10 Mapping of areas protected by levee systems or "44 CFR 65.10"
Pages 157-160

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From page 157...
... This information must be supplied to FEMA by the community or other party seeking recognition of such a levee system at the time a flood risk study or restudy is conducted, when a map revision under the provisions of part 65 of this subchapter is sought based on a levee system, and upon request by the Federal Insurance Administrator during the review of previously recognized structures. The FEMA review will be for the sole purpose of establishing appropriate risk zone determinations for NFIP maps and shall not constitute a determination by FEMA as to how a structure or system will perform in a flood event.
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From page 158...
... The factors that shall be addressed in the analyses include: Depth of flooding, duration of flooding, embankment geometry and length of seepage path at critical locations, embankment and foundation materials, embankment compaction, penetrations, other design factors affecting seepage (such as drainage layers) , and other design factors affecting embankment and foundation stability (such as berms)
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From page 159...
... Operation plans for closures must include the following: (i) Documentation of the flood warning system, under the jurisdiction of Federal, State, or community officials, that will be used to trigger emergency operation activities and demonstration that sufficient flood warning time exists for the completed operation of all closure structures, including necessary sealing, before floodwaters reach the base of the closure.
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From page 160...
... All maintenance activities must be under the jurisdiction of a Federal or State agency, an agency created by Federal or State law, or an agency of a community participating in the NFIP that must assume ultimate responsibility for maintenance. This plan must document the formal procedure that ensures that the stability, height, and overall integrity of the levee and its associated structures and systems are maintained.
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Key Terms

  • engineering analyses
  • nfip maps
  • levee embankment
  • interior drainage
  • previously recognized

  • estimated base
  • sound engineering
  • engineering practice
  • appropriate engineering
  • agency created

  • state law
  • freeboard requirement
  • structural requirements
  • warning time
  • design factors

  • community participating
  • officially adopted
  • analyses demonstrating
  • loading conditions
  • time exists

  • demonstrating adequate
  • foundation stability
  • maintenance plans
  • maintenance activities
  • requirement described

  • state agency
  • foundation materials
  • adequately designed
  • levee design
  • described herein


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