Lower Osage HUC8 10290111
A 2,791 km² sub-basin of the Missouri region in 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
71
Moderate
Drought index
177
Moderate
Area in D2+
4.8%
0% exceptional (D4)
Gauges below normal
0%
of 5 reporting
Median flow
80%
p41 of record
Water assets
1,899
10 springs · 1,191 wells
USGS gauges (5)
- Tavern Creek below St. Elizabeth, MO0692629011 cfsp28 · normal
- Maries River at Westphalia, MO069270004 cfsp29 · normal
- Osage River near Bagnell, MO069260001,120 cfsp41 · normal
- Osage River at Tuscumbia, MO069260802,730 cfsp52 · normal
- Osage River below St. Thomas, MO069265103,580 cfsp60 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 177 | 4.8 | 0/5 | p41 |
| 2026-10-20 | 177 | 4.8 | 1/5 | p28 |
| 2026-10-19 | 177 | 4.8 | 1/5 | p30 |
| 2026-10-18 | 177 | 4.8 | 1/5 | p28 |
| 2026-10-17 | 177 | 4.8 | 2/5 | p29 |
| 2026-10-16 | 177 | 4.8 | 1/5 | p31 |
| 2026-10-15 | 93 | 4.8 | 1/5 | p30 |
| 2026-10-14 | 93 | 4.8 | 2/5 | p51 |
| 2026-10-13 | 93 | 4.8 | 2/5 | p26 |
| 2026-10-12 | 93 | 4.8 | 3/5 | p18 |
| 2026-10-11 | 93 | 4.8 | 3/5 | p19 |
| 2026-10-10 | 93 | 4.8 | 3/5 | p22 |
| 2026-10-09 | 93 | 4.8 | 3/5 | p22 |
| 2026-10-08 | 93 | 4.8 | 3/5 | p23 |
Top water assets
- 66Twehous Lake Damreservoir
- 66Rinquelin Trail Damreservoir
- 66Groff Lake Damreservoir
- 66Schell-Kampeter Damreservoir
- 65Sam Hammond Damreservoir
- 65Nepomuceno Lake Damreservoir
- 65Osage River Below St. Thomas, Moriver
- 65Wilson Lake Damreservoir
- 65Tavern Creek Below St. Elizabeth, Moriver
- 65Osage River At Tuscumbia, Moriver