San Gabriel HUC8 12070205
A 3,540 km² sub-basin of the Texas-Gulf 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
58
Moderate
Drought index
259
Severe
Area in D2+
68.66%
0% exceptional (D4)
Gauges below normal
40%
of 10 reporting
Median flow
84%
p34 of record
Water assets
1,011
59 springs · 335 wells
USGS gauges (11)
- Berry Ck at Airport Rd nr Georgetown, TX081050950 cfsp10 · below normal
- Willis Ck nr Granger, TX081055050 cfsp10 · below normal
- N Fk San Gabriel Rv nr Georgetown, TX081047001 cfsp17 · below normal
- Brushy Ck at Cedar Park, TX081058726 cfsp18 · below normal
- Brushy Ck at IH 35, Round Rock, TX0810588312 cfsp27 · normal
- San Gabriel Rv at Laneport, TX081057005 cfsp42 · normal
- Lake Ck at Lake Ck Pkwy nr Austin, TX081058861 cfsp50 · normal
- Brushy Ck at Kenney Fort Blvd at Round Rock, TX0810588815 cfsp51 · normal
- S Fk San Gabriel Rv at Georgetown, TX081049008 cfsp60 · normal
- N Fk San Gabriel Rv at Reagan Blvd nr Leander, TX08104646604 cfsp87 · above normal
- Brushy Ck at FM 619 nr Taylor, TX08106050778 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 259 | 68.66 | 4/10 | p34 |
| 2026-10-18 | 259 | 68.66 | 4/10 | p35 |
| 2026-10-17 | 259 | 68.66 | 4/10 | p35 |
| 2026-10-16 | 259 | 68.66 | 3/10 | p47 |
| 2026-10-15 | 259 | 68.66 | 3/10 | p52 |
| 2026-10-14 | 259 | 68.66 | 4/10 | p34 |
| 2026-10-13 | 259 | 68.66 | 3/10 | p40 |
| 2026-10-12 | 259 | 68.66 | 3/10 | p44 |
| 2026-10-11 | 259 | 68.66 | 3/10 | p40 |
| 2026-10-10 | 259 | 68.66 | 3/10 | p47 |
| 2026-10-09 | 259 | 68.66 | 3/10 | p55 |
| 2026-10-08 | 331 | 79.25 | 3/10 | p61 |
| 2026-10-07 | 331 | 79.25 | 3/10 | p82 |
| 2026-10-06 | 331 | 79.25 | 3/10 | p79 |
Top water assets
- 67North San Gabriel Damreservoir
- 67Granger Damreservoir
- 66Upper Brushy Creek Ws Scs Site 7 Damreservoir
- 66Lower Brushy Creek Ws Scs Site 10 Damreservoir
- 66Lower Brushy Creek Ws Scs Site 9 Damreservoir
- 66Upper Brushy Creek Ws Scs Site 21 Damreservoir
- 66Upper Brushy Creek Ws Scs Site 17 Damreservoir
- 66Lower Brushy Creek Ws Scs Site 24 Damreservoir
- 66Upper Brushy Creek Ws Scs Site 29 Damreservoir
- 66Lower Brushy Creek Ws Scs Site 4A Damreservoir