Middle Kaskaskia HUC8 07140202
A 4,450 km² sub-basin of the Upper Mississippi region in IL. 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
70
Moderate
Drought index
174
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
17%
of 6 reporting
Median flow
50%
p26 of record
Water assets
3,060
3 springs · 1,309 wells
USGS gauges (6)
- KASKASKIA RIVER AT VANDALIA, IL0559250054 cfsp17 · below normal
- HURRICANE CREEK NEAR MULBERRY GROVE, IL055928004 cfsp26 · normal
- EAST FORK KASKASKIA RIVER NEAR SANDOVAL, IL055929000 cfsp26 · normal
- HICKORY CREEK NEAR BROWNSTOWN, IL055925750 cfsp26 · normal
- LITTLE CROOKED CREEK NEAR NEW MINDEN, IL055935751 cfsp32 · normal
- KASKASKIA RIVER AT CARLYLE, IL0559300082 cfsp43 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 174 | 0 | 1/6 | p26 |
| 2026-10-21 | 174 | 0 | 0/6 | p34 |
| 2026-10-20 | 174 | 0 | 1/6 | p29 |
| 2026-10-19 | 174 | 0 | 1/6 | p30 |
| 2026-10-18 | 174 | 0 | 1/6 | p41 |
| 2026-10-17 | 174 | 0 | 1/6 | p44 |
| 2026-10-16 | 174 | 0 | 1/6 | p49 |
| 2026-10-15 | 145 | 0 | 2/6 | p29 |
| 2026-10-14 | 145 | 0 | 3/6 | p18 |
| 2026-10-13 | 145 | 0 | 3/6 | p19 |
| 2026-10-12 | 145 | 0 | 3/6 | p19 |
| 2026-10-11 | 145 | 0 | 3/6 | p19 |
| 2026-10-10 | 145 | 0 | 3/6 | p19 |
| 2026-10-09 | 145 | 0 | 3/6 | p19 |
Top water assets
- 66Ramsey Lake Damreservoir
- 66Kinmundy New Lake Damreservoir
- 66Lake Nellie Damreservoir
- 66Lake Centralia Damreservoir
- 66Vandalia Municipal Reservoir Damreservoir
- 65Kaskaskia River At Carlyle, Ilriver
- 65East Fork Kaskaskia River Near Sandoval, Ilriver
- 65Salem Reservoir Damreservoir
- 65Kaskaskia River At Vandalia, Ilriver
- 65Hurricane Creek Near Mulberry Grove, Ilriver