Upper Duck HUC8 06040002
A 3,058 km² sub-basin of the Tennessee region in TN. 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
43
Stressed
Drought index
350
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
67%
of 6 reporting
Median flow
82%
p19 of record
Water assets
1,295
70 springs · 751 wells
USGS gauges (7)
- DUCK RIVER BELOW MANCHESTER, TN0359600014 cfsp8 · much below normal
- WARTRACE CREEK BELOW COUNTY ROAD AT WARTRACE, TN035975900 cfsp17 · below normal
- DUCK RIVER NEAR SHELBYVILLE, TN03598000177 cfsp19 · below normal
- DUCK RIVER AT MILE 156 NEAR POTTSVILLE, TN03599419173 cfsp20 · below normal
- DUCK RIVER AT SHELBYVILLE, TN03597860176 cfsp31 · normal
- DUCK RIVER ABOVE MILLTOWN, TN03599240215 cfsp38 · normal
- DUCK RIVER AT HALLS MILL BRIDGE, TN03598185190 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 350 | 100 | 4/6 | p19 |
| 2026-10-18 | 350 | 100 | 3/6 | p26 |
| 2026-10-17 | 350 | 100 | 2/6 | p27 |
| 2026-10-16 | 350 | 100 | 3/6 | p27 |
| 2026-10-15 | 350 | 100 | 2/6 | p34 |
| 2026-10-14 | 350 | 100 | 1/6 | p36 |
| 2026-10-13 | 350 | 100 | 1/6 | p39 |
| 2026-10-12 | 350 | 100 | 0/6 | p43 |
| 2026-10-11 | 350 | 100 | 0/6 | p38 |
| 2026-10-10 | 350 | 100 | 4/6 | p19 |
| 2026-10-09 | 350 | 100 | 3/6 | p18 |
| 2026-10-08 | 310 | 94.79 | 4/6 | p18 |
| 2026-10-07 | 310 | 94.79 | 3/6 | p22 |
| 2026-10-06 | 310 | 94.79 | 2/6 | p33 |
Top water assets
- 66Normandy Damreservoir
- 65Retention Reservoir Damreservoir
- 65Duck River Below Manchester, Tnriver
- 65Duck River At Shelbyville, Tnriver
- 65Duck River Above Milltown, Tnriver
- 65Wartrace Creek Below County Road At Wartrace, Tnriver
- 65Duck River At Halls Mill Bridge, Tnriver
- 65Duck Riverriver
- 65Duck River At Mile 156 Near Pottsville, Tnriver
- 65Duck River Near Shelbyville, Tnriver