Blackbird-Soldier HUC8 10230001
A 4,167 km² sub-basin of the Missouri region in IA, NE, SD. 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
75
Healthy
Drought index
33
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
40%
of 5 reporting
Median flow
91%
p43 of record
Water assets
1,522
0 springs · 355 wells
USGS gauges (8)
- Missouri River at Sioux City, IA0648600025,900 cfsp19 · below normal
- Missouri River at Decatur, NE0660120026,100 cfsp21 · below normal
- South Omaha Creek at Walthill, Nebr.066009009 cfsp43 · normal
- Omaha Creek at Homer, Nebr.0660100022 cfsp52 · normal
- Soldier River at Pisgah, IA06608500136 cfsp74 · normal
- Perry Creek near Millnerville, IA065999003 cfsno long-term record
- Perry Creek near Hinton, IA0659995072 cfsno long-term record
- Perry Creek at 38th Street at Sioux City, IA0660000024 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 33 | 0 | 2/5 | p43 |
| 2026-10-20 | 33 | 0 | 2/5 | p41 |
| 2026-10-19 | 33 | 0 | 2/5 | p50 |
| 2026-10-18 | 33 | 0 | 2/5 | p42 |
| 2026-10-17 | 33 | 0 | 2/5 | p48 |
| 2026-10-16 | 33 | 0 | 2/5 | p51 |
| 2026-10-15 | 33 | 0 | 2/5 | p34 |
| 2026-10-14 | 33 | 0 | 2/5 | p35 |
| 2026-10-13 | 33 | 0 | 2/5 | p32 |
| 2026-10-12 | 33 | 0 | 2/5 | p33 |
| 2026-10-11 | 33 | 0 | 2/5 | p41 |
| 2026-10-10 | 33 | 0 | 2/5 | p38 |
| 2026-10-09 | 33 | 0 | 2/5 | p42 |
| 2026-10-08 | 90 | 0 | 2/5 | p36 |
Top water assets
- 76NE Well G-005158well
- 76NE Well G-004683well
- 76NE Well G-005317well
- 75NE Well G-005316well
- 75NE Well G-001794well
- 75NE Well G-002207well
- 75NE Well G-003888well
- 75NE Well G-002624well
- 75NE Well G-002208well
- 74NE Well G-001577well