Upper Grand HUC8 04050004
A 4,559 km² sub-basin of the Great Lakes region in MI. 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
6
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 8 reporting
Median flow
376%
p89 of record
Water assets
1,157
5 springs · 587 wells
USGS gauges (9)
- SYCAMORE CREEK AT HOLT ROAD NEAR HOLT, MI0411285049 cfsp85 · above normal
- GRAND RIVER AT JACKSON, MI04109000121 cfsp86 · above normal
- LOOKING GLASS RIVER NEAR EAGLE, MI04114498117 cfsp87 · above normal
- SLOAN CREEK NEAR WILLIAMSTON, MI041120001 cfsp88 · above normal
- GRAND RIVER AT PORTLAND, MI041140001,180 cfsp90 · above normal
- GRAND RIVER AT LANSING, MI04113000925 cfsp90 · above normal
- RED CEDAR RIVER AT EAST LANSING, MI04112500210 cfsp92 · much above normal
- RED CEDAR RIVER NEAR WILLIAMSTON, MI04111379110 cfsp92 · much above normal
- GRAND RIVER NEAR EATON RAPIDS, MI04111000no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 6 | 0 | 0/8 | p89 |
Top water assets
- 77Mount Simon Deep Fossil Aquifer — Southern Michiganfossil_water
- 65Red Cedar River Near Williamston, Miriver
- 65Mason Wildlife Damreservoir
- 65Baldwin Flooding Damreservoir
- 65Lake Le-Ann South Damreservoir
- 65Lake Of The Hills Damreservoir
- 65Mixreservoir
- 65Scenic Lake Damreservoir
- 65Moores Park Damreservoir
- 65Grand River At Portland, Miriver