Congaree HUC8 03050110
A 1,786 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
59
Moderate
Drought index
249
Severe
Area in D2+
48.68%
0% exceptional (D4)
Gauges below normal
33%
of 3 reporting
Median flow
83%
p26 of record
Water assets
1,879
0 springs · 904 wells
USGS gauges (4)
- ROCKY BRANCH AT PICKENS ST AT COLUMBIA, SC021695051 cfsp18 · below normal
- GILLS CREEK AT COLUMBIA, SC0216957019 cfsp26 · normal
- CONGAREE RIVER AT COLUMBIA, SC021695003,580 cfsp40 · normal
- CONGAREE RIVER AT CONGAREE NP NEAR GADSDEN, SC021696255,270 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 249 | 48.68 | 1/3 | p26 |
| 2026-10-18 | 249 | 48.68 | 0/3 | p43 |
| 2026-10-17 | 249 | 48.68 | 0/3 | p38 |
| 2026-10-16 | 249 | 48.68 | 0/3 | p48 |
| 2026-10-15 | 249 | 48.68 | 0/3 | p58 |
| 2026-10-14 | 249 | 48.68 | 0/3 | p63 |
| 2026-10-13 | 249 | 48.68 | 1/3 | p73 |
| 2026-10-12 | 249 | 48.68 | 1/3 | p78 |
| 2026-10-11 | 249 | 48.68 | 1/3 | p76 |
| 2026-10-10 | 249 | 48.68 | 2/3 | p14 |
| 2026-10-09 | 249 | 48.68 | 2/3 | p15 |
| 2026-10-08 | 200 | 0 | 2/3 | p16 |
| 2026-10-07 | 200 | 0 | 2/3 | p24 |
| 2026-10-06 | 200 | 0 | 2/3 | p18 |
Top water assets
- 77Middendorf Aquifer — Midlands South Carolinaaquifer
- 66Weston Lakereservoir
- 65Lower Twin Lakereservoir
- 65Dry Branchriver
- 65Congaree River At Columbia, Scriver
- 65Semmes Lakereservoir
- 65Toms Branchriver
- 65Gills Creek At Columbia, Scriver
- 65Congaree River At Congaree Np Near Gadsden, Scriver
- 65Bates Old Riverriver