Rockcastle HUC8 05130102
A 1,978 km² sub-basin of the Ohio region in KY. 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
78
Healthy
Drought index
100
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
111%
p52 of record
Water assets
1,055
12 springs · 482 wells
USGS gauges (1)
- ROCKCASTLE RIVER AT BILLOWS, KY0340650050 cfsp52 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 100 | 0 | 0/1 | p52 |
| 2026-10-19 | 100 | 0 | 0/1 | p58 |
| 2026-10-18 | 100 | 0 | 0/1 | p73 |
| 2026-10-17 | 100 | 0 | 0/1 | p75 |
| 2026-10-16 | 100 | 0 | 0/1 | p68 |
| 2026-10-15 | 100 | 0 | 0/1 | p58 |
| 2026-10-14 | 100 | 0 | 0/1 | p51 |
| 2026-10-13 | 100 | 0 | 0/1 | p44 |
| 2026-10-12 | 100 | 0 | 0/1 | p37 |
| 2026-10-11 | 100 | 0 | 0/1 | p29 |
| 2026-10-10 | 100 | 0 | 0/1 | p26 |
| 2026-10-09 | 100 | 0 | 0/1 | p26 |
| 2026-10-08 | 100 | 0 | 0/1 | p29 |
| 2026-10-07 | 100 | 0 | 0/1 | p30 |
Top water assets
- 65Roundstone Creekriver
- 65Rockcastle Riverriver
- 65Rolling Forkriver
- 65Walkers Branchriver
- 65Rockcastle Riverriver
- 65Calloway Branchriver
- 65Rockcastle River At Billows, Kyriver
- 65Brush Creekriver
- 65Pine Creekriver
- 65Lick Creekriver