Lower Missouri HUC8 10300200
A 4,119 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
75
Healthy
Drought index
106
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 14 reporting
Median flow
138%
p57 of record
Water assets
4,364
40 springs · 2,573 wells
USGS gauges (14)
- Mill Creek near Florissant, MO069359970 cfsp37 · normal
- Creve Coeur Creek at Chesterfield, MO069358501 cfsp44 · normal
- Cowmire Creek at Bridgeton, MO069359801 cfsp51 · normal
- Coldwater Creek near Black Jack, MO069364759 cfsp52 · normal
- Caulks Creek at Chesterfield, MO069358309 cfsp53 · normal
- Fee Fee Creek near Bridgeton, MO069359553 cfsp53 · normal
- Missouri River at Washington, MO0693545078,600 cfsp56 · normal
- Creve Coeur Creek near Creve Coeur, MO069358906 cfsp57 · normal
- Bonhomme Creek near Ellisville, MO069357551 cfsp61 · normal
- Missouri River at Hermann, MO0693450075,300 cfsp61 · normal
- Missouri River near Labadie, MO0693555076,500 cfsp62 · normal
- Missouri River at St. Charles, MO0693596579,200 cfsp73 · normal
- Spanish Lake Trib. nr Black Jack, MO069365300 cfsp77 · above normal
- Bonhomme Creek near Clarkson Valley, MO069357706 cfsp87 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 106 | 0 | 0/14 | p57 |
| 2026-10-17 | 106 | 0 | 0/14 | p68 |
| 2026-10-16 | 106 | 0 | 0/14 | p83 |
| 2026-10-15 | 59 | 0 | 0/14 | p63 |
| 2026-10-14 | 59 | 0 | 3/14 | p61 |
| 2026-10-13 | 59 | 0 | 2/14 | p56 |
| 2026-10-12 | 59 | 0 | 2/14 | p58 |
| 2026-10-11 | 59 | 0 | 3/14 | p56 |
| 2026-10-10 | 59 | 0 | 3/14 | p56 |
| 2026-10-09 | 59 | 0 | 1/14 | p77 |
| 2026-10-08 | 59 | 0 | 1/14 | p69 |
| 2026-10-07 | 59 | 0 | 0/14 | p63 |
| 2026-10-06 | 59 | 0 | 1/14 | p63 |
| 2026-10-05 | 59 | 0 | 1/14 | p56 |
Top water assets
- 67Alpine Lake Damreservoir
- 66True Femme Osage Properties Lake Damreservoir
- 66Kopmann Farms - Field #N1reservoir
- 66Lake Wanderfern Damreservoir
- 66Wagner Lake Damreservoir
- 66Double D Ranch Damreservoir
- 66See Tal Lake Damreservoir
- 66Hoffman Lake Damreservoir
- 66Lakeview Acres Damreservoir
- 66Dierberg Lake Damreservoir