RIVER GAUGE · MERMENTAU RIVER
Mermentau River at Lake Arthur
Jefferson Davis County, Louisiana
Water level22.29 ft
Flow—
Last readingSep 16, 2026, 5:15 PM UTC (last recorded)
Action24.5 ft
Minor flood25 ft
Moderate flood26.5 ft
Major flood27.5 ft
The past week
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When the water runs low
- 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
More on Mermentau River
UpstreamMermentau River at Mermentau
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