Mackinaw HUC8 07130004
A 2,976 km² sub-basin of the Upper Mississippi region in IL. 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
76
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
449%
p84 of record
Water assets
778
0 springs · 600 wells
USGS gauges (4)
- MONEY CREEK NEAR TOWANDA, IL055644003 cfsp81 · above normal
- MACKINAW RIVER NEAR CONGERVILLE, IL0556750094 cfsp84 · above normal
- MACKINAW RIVER NEAR GREEN VALLEY, IL05568000242 cfsp85 · above normal
- SIXMILE CREEK AT HUDSON, IL055657002 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/3 | p84 |
Top water assets
- 66Evergreen Lake Damreservoir
- 66Eureka Lake Damreservoir
- 66Heritage Lake Damreservoir
- 66Lake Bloomington Damreservoir
- 65Sixmile Creekriver
- 65Comlara Park Pond Damreservoir
- 65Northbridge Subdivision Lake Damreservoir
- 65Sutton Pond Damreservoir
- 65Money Creek Near Towanda, Ilriver
- 65Mackinaw River Near Green Valley, Ilriver