Waterlands
Mermentau River
USGS · 08012150
MERMENTAU RIVER
USGS · 08012150LIVE

Mermentau River At Mermentau, LA

LOUISIANA30.1900°N, -92.5906°W Updated 18 hr ago
FLOW RATE
185cfs
GAUGE HT
2.14ft
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
185cfs
Optimal band: 374–506 cfs
PERIOD HIGH
7,937cfs
PERIOD LOW
3cfs
RUNNABLE
8%
last 1 year in band

Gauge Height

2.14ft
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Station Location

30.1900, -92.5906
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DATA · USGS · NOAA · NWSUPDATED 2026-10-16 00:00 UTC
Site #08012150·USGS

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