Lower Brazos-Little Brazos HUC8 12070101
A 6,986 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
43
Stressed
Drought index
305
Extreme
Area in D2+
83.4%
0% exceptional (D4)
Gauges below normal
100%
of 4 reporting
Median flow
30%
p12 of record
Water assets
1,429
63 springs · 523 wells
USGS gauges (6)
- Brazos Rv at Washington, TX08110200375 cfsp11 · below normal
- Brazos Rv at SH 21 nr Bryan, TX08108700338 cfsp12 · below normal
- Brazos Rv nr Hempstead, TX08111500461 cfsp12 · below normal
- Brazos Rv nr Highbank, TX08098290155 cfsp16 · below normal
- Little Pond Ck nr Burlington, TX08098300no readingno long-term record
- Little Brazos Rv at FM 485 nr Hearne, TX08108780562 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 305 | 83.4 | 4/4 | p12 |
| 2026-10-19 | 305 | 83.4 | 4/4 | p11 |
| 2026-10-18 | 305 | 83.4 | 4/4 | p11 |
| 2026-10-17 | 305 | 83.4 | 4/4 | p12 |
| 2026-10-16 | 305 | 83.4 | 4/4 | p13 |
| 2026-10-15 | 279 | 83.4 | 4/4 | p13 |
| 2026-10-14 | 279 | 83.4 | 4/4 | p11 |
| 2026-10-13 | 279 | 83.4 | 3/4 | p20 |
| 2026-10-12 | 279 | 83.4 | 2/4 | p24 |
| 2026-10-11 | 279 | 83.4 | 1/4 | p29 |
| 2026-10-10 | 279 | 83.4 | 1/4 | p38 |
| 2026-10-09 | 279 | 83.4 | 0/4 | p49 |
| 2026-10-08 | 314 | 92.84 | 0/4 | p56 |
| 2026-10-07 | 314 | 92.84 | 0/4 | p51 |
Top water assets
- 66Marlin New City Lake Damreservoir
- 66Cow Bayou Ws Scs Site 29 Damreservoir
- 66Cow Bayou Ws Scs Site 18 Damreservoir
- 66Bryan Utilities Lake Damreservoir
- 66Cow Bayou Ws Scs Site 25 Damreservoir
- 66Spring Lake Damreservoir
- 66Cow Bayou Ws Scs Site 3 Damreservoir
- 66Coffield Lake Damreservoir
- 66Cow Bayou Ws Scs Site 15 Damreservoir
- 66Yarboro Damreservoir