Black-Rocky HUC8 04110001
A 2,317 km² sub-basin of the Great Lakes region in OH. 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 5 reporting
Median flow
122%
p52 of record
Water assets
449
4 springs · 73 wells
USGS gauges (9)
- Plum Creek near Olmsted Falls OH042014231 cfsp51 · normal
- East Branch Rocky River near Strongsville OH0420148419 cfsp51 · normal
- West Branch Rocky River at West View OH0420140037 cfsp52 · normal
- Black River at Elyria OH0420050023 cfsp54 · normal
- Rocky River near Berea OH0420150082 cfsp80 · above normal
- Baker Creek at Olmsted Falls OH04201404no readingno long-term record
- Unnamed Tributary to W B Rocky R near Berea OH04201409no readingno long-term record
- Unnamed Trib to W B Rocky R near Olmsted Falls OH04201429no readingno long-term record
- Baldwin Creek at Strongsville OH04201495no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/5 | p52 |
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