Skip to main content

Affordability of National Flood Insurance Program Premiums Report 1 (2015) / Chapter Skim
Currently Skimming:

Appendix E-- NFIP Flood Designations
Pages 143-146

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 143...
... C and X Area of minimal flood hazard, usually depicted on FIRMs as above the 500-year flood level. High Risk Areas In communities that participate in the NFIP, mandatory flood insurance purchase requirements apply to all of these zones: ZONE DESCRIPTION A Areas with a 1% annual chance of flooding and a 26% chance of flooding over the life of a 30-year mortgage.
Read the entire page →
From page 144...
... Average flood depths derived from detailed hydraulic analyses are shown within these zones. AR Areas with a temporarily increased flood risk due to the build ing or restoration of a flood control system (such as a levee or a dam)
Read the entire page →
From page 145...
... Flood insurance rates are com mensurate with the uncertainty of the flood risk. SOURCE: FEMA's Map Service Center, available online at https://msc.fema.gov/webapp/wcs/ stores/servlet/info?
Read the entire page →

Key Terms

  • flood insurance
  • base flood
  • insurance purchase
  • flood hazard
  • mandatory flood

  • detailed analyses
  • purchase requirements
  • elevations derived
  • shallow flooding
  • annual chance

  • base floodplain
  • storm waves
  • requirements apply
  • usually depicted
  • depths derived

  • average depth
  • increased flood
  • risk due
  • hazard associated
  • minimal flood

  • flood depths
  • ditional hazard
  • insurance rates
  • average flood
  • flood risk

  • hydraulic analyses
  • detailed hydraulic
  • stream flood
  • temporarily increased
  • depth ranging


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.