Lake Maurepas HUC8 08070204
A 1,846 km² sub-basin of the Lower Mississippi region in LA. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
80
Healthy
Drought index
23
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
87%
p38 of record
Water assets
982
0 springs · 795 wells
USGS gauges (4)
- Bayou Lafourche SW of Donaldsonville, LA07380401286 cfsp38 · normal
- Amite River Diversion south of Whitehall, LA073802101,450 cfsno long-term record
- New River north of Sorrento, La07380228031 cfsno long-term record
- New River Canal east of Sorrento, LA073802284205 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 23 | 0 | 0/1 | p38 |
Top water assets
- 65Pass Manchacriver
- 65Bayou Conwayriver
- 65Old New Riverriver
- 65Old New Riverriver
- 65Mississippi Bayouriver
- 65Saveiro Canalriver
- 65Blind Riverriver
- 65Amite River Diversion South Of Whitehall, Lariver
- 65New River North Of Sorrento, Lariver
- 65Big Branchriver