Upper Nueces HUC8 12110103
A 4,867 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
74
Moderate
Drought index
80
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
113188%
p84 of record
Water assets
866
8 springs · 209 wells
USGS gauges (2)
- Nueces Rv bl Uvalde, TX0819200087 cfsp84 · above normal
- Nueces Rv nr Asherton, TX0819300068 cfsp84 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 80 | 0 | 0/2 | p84 |
Top water assets
- 66Upper Nueces Lake Damreservoir
- 65Tortuga Creekriver
- 65Nueces Riverriver
- 65Tortuga Creekriver
- 65Boynton Lake Damreservoir
- 65El Barrosa Creekriver
- 65Sage Creekriver
- 65San Roque Creekriver
- 65Espio Creekriver
- 65Nueces Riverriver