Water Resources of the United States

USGS Flood-related Publications

Visit the USGS Flood Reports page for floods dating back over 100 years.

Related Links

Archive of USGS Project Alert flood notices - local and regional flood briefs since 2008.
100-Year Flood--It's All About Chance - poster discussing the meaning and use of probability language in flood characterization.
Video: 2011: The Year of the Flood

State-based Flood Information

There is a USGS Water Science Center office in each State. Alabama Arkansas Georgia Illinois Indiana Kansas Louisiana Montana North Carolina North Dakota Oklahoma South Carolina Tennessee Wyoming Texas Alaska Arizona California Caribbean Colorado Connecticut Florida Hawaii Idaho Iowa Kentucky Maine Maryland-Delaware-D.C. Massachusettes Michigan Minnesota Mississippi Missouri Nebraska Nevada New Hampshire New Jersey New Mexico New York Ohio Oregon Pennsylvania Rhode Island South Dakota Utah Vermont Virginia Washington West Virginia Wisconsin

Click the map above to visit a State-specific flood page (if available), or check out one of these State flood databases:

Colorado Flood Database

Oklahoma Flood Database

USGS Contact Information

For questions related to this site or to contribute content, please email TODD KOENIG or BOB HOLMES.

USGS Flood Information   

The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about the USGS activities, data, and services provided during regional high-flow events, such as hurricanes or multi-state flooding events. The USGS response to these events is typically managed by the National Floods Specialist.

The USGS Tennessee Water-Science Center worked in cooperation with FEMA, USACE, National Weather Service, and local agencies to provide emergency real-time surface-water stage gages at critical locations in Shelby County. The emergency gages included a replacement gage on the Mississippi River at Memphis and other critical locations. Information from the gages assisted the National Weather Service and the Emergency Management agencies in flood forecasts as the crest of the Mississippi river flooding approached and passed Memphis, Tennessee.

The USGS Tennessee Water-Science Center sent four additional crews deployed to the FEMA emergency designated areas, Stewart, Lake, Dyer, and Shelby Counties in Tennessee to document high-water levels in the flooded areas. Six transducers were also deployed to monitor the flood rise, peak levels, and recession. The combination of the high-water marks, transducers, and the emergency gaging are being used to develop flood inundation maps for FEMA. See Additional Resources below for preliminary inundation maps.

Preliminary flood inundation maps:

*Note: This draft data is based on estimates of water level that have not yet been fully processed and may not represent actual conditions in the area.

USGS Activities in the News:

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URL: https://water.usgs.gov/floods/events/2011/memphis/
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Page Last Modified: Friday, 03-Feb-2017 11:01:19 EST