Floodplain Elevation Tool

Introducing Walter P Moore's Floodplain Elevation Tool — an interactive tool designed to provide FEMA 10-year, 50-year, 100-year, and 500-year frequency floodplain elevations and stream flood profiles within the watersheds of Harris County and the City of Houston. Useful when planning urban development and evaluating flood risk, this tool incorporates the new Harris County and City of Houston floodplain regulations.


  • Navigate a web-based map and see the FEMA Mapped floodplain limits.
  • View stream cross sections from hydraulic models used to create the FEMA floodplain maps.
  • Click on a cross section to show different flood elevations, including the 10% (10-year), 2% (50-year), 1% (100-year), and 0.2% (500-year).
  • View the effective stream profile from the Flood Insurance Study.

Please visit flood.walterpmoore.com on Google Chrome for optimal viewing and complete the simple registration process. 


Learn Moore About Water here.

Learn about our Water Resources Group here.

An Introduction to Flood Protection

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