Boyer HUC8 10230007
A 3,082 km² sub-basin of the Missouri region in IA. 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
80
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
374%
p86 of record
Water assets
1,236
0 springs · 222 wells
USGS gauges (1)
- Boyer River at Logan, IA06609500516 cfsp86 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 0 | 0 | 0/1 | p86 |
| 2026-10-20 | 0 | 0 | 0/1 | p85 |
| 2026-10-19 | 0 | 0 | 0/1 | p87 |
| 2026-10-18 | 0 | 0 | 0/1 | p88 |
| 2026-10-17 | 0 | 0 | 0/1 | p88 |
| 2026-10-16 | 0 | 0 | 0/1 | p88 |
| 2026-10-15 | 0 | 0 | 0/1 | p85 |
| 2026-10-14 | 0 | 0 | 0/1 | p86 |
| 2026-10-13 | 0 | 0 | 0/1 | p87 |
| 2026-10-12 | 0 | 0 | 0/1 | p86 |
| 2026-10-11 | 0 | 0 | 0/1 | p86 |
| 2026-10-10 | 0 | 0 | 0/1 | p85 |
| 2026-10-09 | 0 | 0 | 0/1 | p86 |
| 2026-10-08 | 0 | 0 | 0/1 | p87 |
Top water assets
- 66Kasparbauerreservoir
- 66Straight Damreservoir
- 66Winner Damreservoir
- 66Assman #4 Grade Stabilization Structurereservoir
- 66Cleveland Damreservoir
- 66Koski Damreservoir
- 66Cohrs Damreservoir
- 66Johnson (Oscar) Damreservoir
- 66Burkhart Damreservoir
- 66Smith (Steve) Damreservoir