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 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
51
Moderate
Drought index
258
Severe
Area in D2+
57.68%
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, SC02174055577 cfsno long-term record
- COW CASTLE CREEK NEAR BOWMAN, SC021742500 cfsno long-term record
- FOUR HOLE SWAMP NEAR DORCHESTER, SC021744803 cfsno long-term record
- EDISTO RIVER BELOW JACKSONBORO, SC02175025no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 258 | 57.68 | — | — |
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