Bayou Manchac near Little Prairie, LA

Ascension Parish, Louisiana · USGS gauge 07380101 · NWS BMPL1 · Bayou Manchac flood status · Louisiana river levels

Nearby: river levels near Port Vincent

Is Bayou Manchac near Little Prairie, LA flooding right now?

Bayou Manchac near Little Prairie, LA measured 2.37 ft on 2026-09-22 22:15:00 UTC. That observation was 7.6 ft below its 10 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
2.37 ft
as of 56 min ago
Streamflow
80 cfs
data refreshed 9 min ago

Minor flooding here begins at 10 ft, with major flooding at 16 ft. The highest crest on record was 21.49 ft on Mon, Aug 15, 2016.

Streamflow outlook

NOAA National Water Model forecast, issued 11 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action9 ft6.6 ft below
Minor flood10 ft7.6 ft below
Moderate flood14 ft11.6 ft below
Major flood16 ft13.6 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
21.49 ft2016-08-15
16.92 ft2001-06-10
16.83 ft1990-01-28
16.38 ft1993-01-23
14.78 ft2016-03-14

Last 7 days

Past 7 days · 2.09–3.08 ft

Nearby gauges

GaugeDistanceCounty
Muddy Creek at Manchac Acres Rd near Oak Grove, LA1.9 miAscension Parish
Muddy Creek at Hwy 42 near Oak Grove, LA2.6 miAscension Parish
Henderson Bayou Tributary. No.2 near Duplessis, LA2.9 miAscension Parish
Welsh Gully at J. Broussard Rd near Prairieville, LA3.1 miAscension Parish
Henderson Bayou near Port Vincent, LA3.6 miAscension Parish
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast