Monona-Harrison Ditch HUC8 10230004
A 2,503 km² sub-basin of the Missouri region in IA. 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
51
Moderate
Drought index
200
Severe
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
44%
p19 of record
Water assets
934
0 springs · 102 wells
USGS gauges (1)
- Monona-Harrison Ditch near Turin, IA0660240055 cfsp19 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 200 | 0 | 1/1 | p19 |
Top water assets
- 65East Fork Wolf Creekriver
- 65Fiddle Creekriver
- 65Johns Creekriver
- 65Mud Creekriver
- 65Wolf Creekriver
- 65Farmers Ditchriver
- 65Wolf Creekriver
- 65Johns Creekriver
- 65West Fork Little Sioux Riverriver
- 65West Fork Little Sioux Riverriver