Blackwater HUC8 03010202
A 1,917 km² sub-basin of the South Atlantic-Gulf region in NC, VA. 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
70
Moderate
Drought index
137
Moderate
Area in D2+
11.49%
0% exceptional (D4)
Gauges below normal
33%
of 3 reporting
Median flow
51%
p35 of record
Water assets
1,140
0 springs · 219 wells
USGS gauges (4)
- BLACKWATER RIVER AT ROUTE 620 NEAR ZUNI, VA020477838 cfsp15 · below normal
- BLACKWATER RIVER NEAR FRANKLIN, VA0204950020 cfsp35 · normal
- BLACKWATER RIVER NEAR DENDRON, VA0204750014 cfsp45 · normal
- BLACKWATER RIVER AT HWYS 58/258 AT FRANKLIN, VA02050000-125 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 137 | 11.49 | 1/3 | p35 |
Top water assets
- 65Blackwater River Near Dendron, Variver
- 65Second Swampriver
- 65Blackwater River At Hwys 58/258 At Franklin, Variver
- 65Warwick Swampriver
- 65Terrapin Swampriver
- 65Seacock Swampriver
- 65Blackwater River At Route 620 Near Zuni, Variver
- 65Blackwater River Near Franklin, Variver
- 65Blackwater Riverriver
- 65Round Hill Swampriver