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 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
83
Healthy
Drought index
5
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 8 reporting
Median flow
108%
p51 of record
Water assets
1,157
5 springs · 587 wells
USGS gauges (9)
- GRAND RIVER AT PORTLAND, MI04114000341 cfsp30 · normal
- SYCAMORE CREEK AT HOLT ROAD NEAR HOLT, MI0411285018 cfsp35 · normal
- GRAND RIVER AT LANSING, MI04113000349 cfsp50 · normal
- SLOAN CREEK NEAR WILLIAMSTON, MI041120001 cfsp50 · normal
- RED CEDAR RIVER NEAR WILLIAMSTON, MI0411137943 cfsp52 · normal
- LOOKING GLASS RIVER NEAR EAGLE, MI0411449861 cfsp54 · normal
- RED CEDAR RIVER AT EAST LANSING, MI0411250083 cfsp58 · normal
- GRAND RIVER AT JACKSON, MI0410900088 cfsp63 · normal
- GRAND RIVER NEAR EATON RAPIDS, MI04111000no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 5 | 0 | 0/8 | p51 |
| 2026-10-18 | 5 | 0 | 0/8 | p56 |
| 2026-10-17 | 5 | 0 | 0/8 | p54 |
| 2026-10-16 | 5 | 0 | 0/8 | p51 |
| 2026-10-15 | 5 | 0 | 1/8 | p52 |
| 2026-10-14 | 5 | 0 | 0/8 | p49 |
| 2026-10-13 | 5 | 0 | 0/8 | p55 |
| 2026-10-12 | 5 | 0 | 0/8 | p58 |
| 2026-10-11 | 5 | 0 | 0/8 | p58 |
| 2026-10-10 | 5 | 0 | 0/8 | p61 |
| 2026-10-09 | 5 | 0 | 0/8 | p61 |
| 2026-10-08 | 5 | 0 | 0/8 | p65 |
| 2026-10-07 | 5 | 0 | 0/8 | p70 |
| 2026-10-06 | 5 | 0 | 0/8 | p72 |
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