Lower Grand HUC8 10280103
A 6,114 km² sub-basin of the Missouri region in IA, MO. 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
84
Healthy
Drought index
34
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 5 reporting
Median flow
114%
p52 of record
Water assets
1,925
0 springs · 170 wells
USGS gauges (6)
- Grand River near Fountain Grove, MO06900800293 cfsp32 · normal
- Grand River near Sumner, MO06902000267 cfsp34 · normal
- East Locust Creek near Boynton, MO069012051 cfsp52 · normal
- Medicine Creek near Laredo, MO0690005017 cfsp53 · normal
- Locust Creek near Linneus, MO0690150020 cfsp63 · normal
- Medicine Creek at Lucerne, MO06899900no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 34 | 0 | 0/5 | p52 |
Top water assets
- 66East Locust Creek Watershed Dam E- 36reservoir
- 66Upper Locust Creek W-189reservoir
- 66Lake Lu Juan Damreservoir
- 66East Locust Creek Watershed Dam E- 43reservoir
- 66Upper Locust Creek W- 77reservoir
- 66East Locust Creek Watershed Dam E-29reservoir
- 66Wise Damreservoir
- 66Ronda Connor Damreservoir
- 66East Locust Creek Watershed Dam E- 69reservoir
- 66Upper Locust Creek W- 76reservoir