Elm Fork Trinity HUC8 12030103
A 4,813 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
57
Moderate
Drought index
279
Severe
Area in D2+
79.49%
0% exceptional (D4)
Gauges below normal
31%
of 13 reporting
Median flow
83%
p30 of record
Water assets
1,544
4 springs · 602 wells
USGS gauges (15)
- Timber Ck nr Collinsville, TX080508000 cfsp10 · below normal
- Range Ck nr Collinsville, TX080508400 cfsp10 · below normal
- Hickory Ck at Denton, TX080527800 cfsp10 · below normal
- Elm Fk Trinity Rv at Greenbelt nr Pilot Point, TX080511357 cfsp13 · below normal
- Clear Ck nr Sanger, TX080515000 cfsp25 · normal
- Indian Ck at FM 2281, Carrollton, TX080530092 cfsp27 · normal
- Elm Fk Trinity Rv nr Carrollton, TX08055500116 cfsp30 · normal
- Doe Br at US Hwy 380 nr Prosper, TX0805274564 cfsp41 · normal
- Elm Fk Trinity Rv at Spur 348, Irving, TX08055560161 cfsp46 · normal
- Hutton Br at N Denton Dr at Carrollton, TX080530901 cfsp53 · normal
- Elm Fk Trinity Rv at Gainesville, TX080504001 cfsp58 · normal
- Elm Fk Trinity Rv nr Lewisville, TX08053000419 cfsp76 · above normal
- Little Elm Ck nr Aubrey, TX0805270017 cfsp100 · much above normal
- Elm Fk Trinity Rv at FM 1198 nr Myra, TX080503500 cfsno long-term record
- Timber Ck at S. Edmonds Ln, Lewisville, TX0805302517 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 279 | 79.49 | 4/13 | p30 |
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