Mermentau River at Lake Arthur Water Level

Current Water Level

Gage Height

Streamflow

Last Reading

FLOOD STAGES

Know the flood categories.

Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.

Major Flood

27.5 ft

Moderate Flood

26.5 ft

Minor Flood

25 ft

Action Stage

24.5 ft

Low-Water Impacts

5 ft

Stage needed to inundate designated Gulf Sturgeon critical habitat below Jim Woodruff Lock and Dam.

3 ft

Temporary (not sustainable) operating level for of Scholz Power Plant

What happens as water levels drop, per the National Weather Service.

7-Day Water Level Chart

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View Official NWS Hydrograph →

About This Gauge

USGS Site

08080202

NWS LID

MLAL1

River

Mermentau River

County

Jefferson Davis, LA

Coordinates

30.0728°N, 92.6592°W

Get Flood Alerts for Mermentau River

StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.

Frequently Asked Questions

What is the current water level of Mermentau River at Lake Arthur?

The Mermentau River at Lake Arthur gauge is maintained by USGS (site 08080202) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.

What is flood stage for Mermentau River at Lake Arthur?

The NWS-defined flood stage for Mermentau River at Lake Arthur is 25 feet. Action stage begins at 24.5 feet. Moderate flooding starts at 26.5 feet, and major flooding at 27.5 feet.

How do I get alerts when Mermentau River rises?

Download StormCast free on Google Play, go to River Gauges, and add Mermentau River at Lake Arthur to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.

Where is the Mermentau River at Lake Arthur gauge located?

The gauge is located in Jefferson Davis County, Louisiana at coordinates 30.0728°N, 92.6592°W. USGS site number: 08080202. Data is provided by the U.S. Geological Survey and the National Weather Service.

More Gauges on Mermentau River

Mermentau River at Catfish Point Lock Mermentau River at Mermentau

On This River

Upstream: Mermentau River at Mermentau Downstream: Mermentau River at Lacassine Wildlife Refuge

More Resources

Louisiana River Gauges River Level App Flood Alerts Understanding River Flood Levels Flash Flood Warnings Tornado Alerts

Source & Notes

Data provided by: Observations courtesy of U.S. Geological Survey, US Geological Survey

Mermentau River at Lake Arthur Water Level & Flood Stage.