Lower Devils HUC8 13040302
A 2,260 km² sub-basin of the Rio Grande region in TX. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
60
Moderate
Drought index
217
Severe
Area in D2+
16.87%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
154%
p78 of record
Water assets
39
22 springs · 8 wells
USGS gauges (1)
- Dolan Ck abv Devils River nr Comstock, TX0844910020 cfsp78 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 217 | 16.87 | 0/1 | p78 |
| 2026-10-19 | 217 | 16.87 | 0/1 | p79 |
| 2026-10-18 | 217 | 16.87 | 0/1 | p80 |
| 2026-10-17 | 217 | 16.87 | 0/1 | p78 |
| 2026-10-16 | 217 | 16.87 | 0/1 | p80 |
| 2026-10-15 | 200 | 0 | 0/1 | p57 |
| 2026-10-14 | 200 | 0 | 0/1 | p64 |
| 2026-10-13 | 200 | 0 | 0/1 | p64 |
| 2026-10-12 | 200 | 0 | 0/1 | p73 |
| 2026-10-11 | 200 | 0 | 0/1 | p73 |
| 2026-10-10 | 200 | 0 | 0/1 | p69 |
| 2026-10-09 | 200 | 0 | 1/1 | p2 |
| 2026-10-08 | 285 | 85.38 | 1/1 | p2 |
| 2026-10-07 | 285 | 85.38 | 1/1 | p2 |
Top water assets
- 65Dolan Ck Abv Devils River Nr Comstock, Txriver
- 53Yr-70-33-103well
- 53Yr-71-40-307well
- 42YR-71-08-901spring
- 42Yr-54-63-401well
- 42Moody Lake Damreservoir
- 42Gillis East Lake Damreservoir
- 42Devils Rv Nr Juno, Txriver
- 42YR-70-17-501spring
- 42YR-71-24-301spring