Bad HUC8 10140102
A 8,226 km² sub-basin of the Missouri region in SD. 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
56
Moderate
Drought index
147
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
0%
p10 of record
Water assets
3,727
5 springs · 593 wells
USGS gauges (3)
- SOUTH FORK BAD RIVER NEAR COTTONWOOD, SD064402000 cfsp10 · below normal
- BAD RIVER NEAR FORT PIERRE, SD064415000 cfsp10 · below normal
- PLUM CREEK BELOW HAYES, SD064411100 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 147 | 0 | 2/2 | p10 |
Top water assets
- 78Robert Berryriver
- 76Finn Farm Incriver
- 76Gaylord Saucermanwell
- 76Virgil Hortonwell
- 76W Scott Gundersonriver
- 76Regina Iversenriver
- 76George E Haukwell
- 76Willard Bloomwell
- 76Peno Farms Incwell
- 76Donald E Posswell