Four Hole Swamp HUC8 03050205
A 1,694 km² sub-basin of the South Atlantic-Gulf region in SC. 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
52
Moderate
Drought index
241
Severe
Area in D2+
46.54%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
818
0 springs · 382 wells
USGS gauges (4)
- EDISTO RIVER BELOW CANADYS, SC02174055658 cfsno long-term record
- COW CASTLE CREEK NEAR BOWMAN, SC021742502 cfsno long-term record
- FOUR HOLE SWAMP NEAR DORCHESTER, SC0217448043 cfsno long-term record
- EDISTO RIVER BELOW JACKSONBORO, SC02175025-61 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 241 | 46.54 | — | — |
| 2026-10-20 | 241 | 46.54 | — | — |
| 2026-10-19 | 241 | 46.54 | — | — |
| 2026-10-18 | 241 | 46.54 | — | — |
| 2026-10-17 | 241 | 46.54 | — | — |
| 2026-10-16 | 241 | 46.54 | — | — |
| 2026-10-15 | 264 | 69.61 | — | — |
| 2026-10-14 | 264 | 69.61 | — | — |
| 2026-10-13 | 264 | 69.61 | — | — |
| 2026-10-12 | 264 | 69.61 | — | — |
| 2026-10-11 | 264 | 69.61 | — | — |
| 2026-10-10 | 264 | 69.61 | — | — |
| 2026-10-09 | 264 | 69.61 | — | — |
| 2026-10-08 | 295 | 95.25 | — | — |
Top water assets
- 65Providence Swampriver
- 65Four Hole Swampriver
- 65Bull Swampriver
- 65Middle Pen Swampriver
- 65Four Hole Swampriver
- 65Cow Castle Creek Near Bowman, Scriver
- 65Buck Branchriver
- 65Sandy Runriver
- 65Four Hole Swampriver
- 65Home Branchriver