South Grand HUC8 10290108
A 5,302 km² sub-basin of the Missouri region in KS, MO. 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
75
Healthy
Drought index
114
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
43%
p34 of record
Water assets
2,049
10 springs · 1,141 wells
USGS gauges (3)
- Big Creek near Blairstown, MO069217208 cfsp34 · normal
- South Grand River at Archie, MO069215909 cfsp35 · normal
- South Grand River at Urich, MO0692160047 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 114 | 0 | 0/2 | p34 |
| 2026-10-19 | 114 | 0 | 0/3 | p44 |
| 2026-10-18 | 114 | 0 | 0/3 | p51 |
| 2026-10-17 | 114 | 0 | 0/3 | p47 |
| 2026-10-16 | 114 | 0 | 0/3 | p51 |
| 2026-10-15 | 80 | 0 | 0/2 | p39 |
| 2026-10-14 | 80 | 0 | 0/2 | p37 |
| 2026-10-13 | 80 | 0 | 1/2 | p24 |
| 2026-10-12 | 80 | 0 | 1/2 | p25 |
| 2026-10-11 | 80 | 0 | 0/2 | p27 |
| 2026-10-10 | 80 | 0 | 0/2 | p28 |
| 2026-10-09 | 80 | 0 | 0/3 | p31 |
| 2026-10-08 | 111 | 0 | 0/3 | p43 |
| 2026-10-07 | 111 | 0 | 0/3 | p51 |
Top water assets
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- 66Harrisonville City Lake Damreservoir
- 66Williams Lake Dam-Sec 36reservoir
- 65Norcross Farm Lake Damreservoir
- 65Hinton Lake Dam No 1reservoir
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