Water Resources of the United States

Water-level Sensors

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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.


Rainfall across Louisiana including amounts above 30 inches in some locations resulted in record-setting flooding. With over $8 billion in expected damages, the US Geological Survey responded with streamgage repairs, high-water mark collection, streamflow measurements, and assistance for 7 USGS employees whose own homes were damaged by the floods.

image of USGS WaterWatch chart

Regional Flooding: After winter flooding blew out the cumulative runoff record for Louisiana, spring rains and August rains continued to press 2016 toward being the heaviest runoff record on record for Louisiana.

Click the image at left to see the cumulative runoff or visit USGS WaterWatch for current flood conditions and other tools to explore flood and drought.

image of USGS flood event viewer

Flood Event Viewer: USGS technicians and hydrologists, in partnership with FEMA, have collected hundreds of high-water marks and produce flood inundation maps. Click the image to enter the USGS Flood Event Viewer for this event.

Check out the published report: Characterization of Peak Streamflows and Flood Inundation of Selected Areas in Louisiana from the August 2016 Flood

image of FEMA website

FEMA disaster declaration (DR-4277): Incident period: August 11, 2016. Major Disaster Declaration declared on August 14, 2016

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URL: https://water.usgs.gov/floods/events/2016/aug_la/
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Page Last Modified: Friday, 10-Feb-2017 11:59:50 EST