Lavaca HUC8 12100101
A 2,356 km² sub-basin of the Texas-Gulf region in TX. 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
43
Stressed
Drought index
181
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
0%
p0 of record
Water assets
357
3 springs · 46 wells
USGS gauges (2)
- Lavaca Rv at Hallettsville, TX081635000 cfsp0 · much below normal
- Lavaca Rv nr Edna, TX081640000 cfsp0 · much below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 181 | 0 | 2/2 | p0 |
Top water assets
- 65Smothers Creekriver
- 65Lavaca Riverriver
- 65Big Brushy Creekriver
- 65Big Brushy Creekriver
- 65Lavaca Riverriver
- 65Barnes Lake Damreservoir
- 65Lavaca Riverriver
- 65Big Brushy Creekriver
- 65Rocky Creekriver
- 65Rocky Creekriver