Lower Big Blue HUC8 10270205
A 4,420 km² sub-basin of the Missouri region in KS, NE. 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
85
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
127%
p54 of record
Water assets
2,403
2 springs · 521 wells
USGS gauges (3)
- BIG BLUE R AT MARYSVILLE, KS06882510176 cfsp28 · normal
- BLACK VERMILLION R NR FRANKFORT, KS0688550017 cfsp54 · normal
- BIG BLUE R NR MANHATTAN, KS06887000994 cfsp56 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/3 | p54 |
Top water assets
- 66Frd No 32reservoir
- 66Plum Creek 2-Creservoir
- 66Frd No 4A (Mission Creek)reservoir
- 66Warford Damreservoir
- 66Spearow Damreservoir
- 66Frd No 76reservoir
- 66Frd No 5B (Mission Creek)reservoir
- 66Mission Creek 7-Freservoir
- 66Unnamed Damreservoir
- 66Lake Elboreservoir