Crawlspace Construction for Buildings Locations in the SFHA

FEMA TB-11  CoverCrawlspace Construction for Buildings Located in the Special Flood Hazard Area (SFHA), NFIP Interim Guidance

FEMA TB-11 - Published November 2001

This technical bulletin provides guidance on crawlspace construction within the Special Flood Hazard Area (SFHA). 

Topics include:

  • Best Practices for Crawlspace Foundations in the SFHA
  • Drainage
  • NFIP Requirements for all Crawlspace Construction
  • Flood Forces on Buildings
  • Flood Insurance Implications
  • Flood-Resistant Materials
  • Pre-Engineered Below-Grade Crawlspace Foundation Guidance
  • Utilities, Access, and Ventilation Openings

Uploaded March 5, 2020