Manitowoc-Sheboygan HUC8 04030101
A 4,222 km² sub-basin of the Great Lakes region in WI. 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
58
Moderate
Drought index
175
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
713%
p92 of record
Water assets
3,823
11 springs · 2,897 wells
USGS gauges (5)
- MANITOWOC RIVER AT MANITOWOC, WI04085427385 cfsp91 · much above normal
- SHEBOYGAN RIVER AT SHEBOYGAN, WI04086000377 cfsp93 · much above normal
- GLRI WATERWAY NUMBER 6 NR MORRISON, WI4414530875757010 cfsno long-term record
- DISCOVERY FARMS WATERWAY KD2 NEAR KEWAUNEE, WI4421550873300010 cfsno long-term record
- DISCOVERY FARMS WATERWAY KD1 NEAR KEWAUNEE, WI4424050874144010 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 175 | 0 | 0/2 | p92 |
Top water assets
- 65Kielreservoir
- 65Mullet Creekreservoir
- 65Hinghamreservoir
- 65Mischosreservoir
- 65Onion Riverreservoir
- 65Richardsonreservoir
- 65Collins Marshreservoir
- 65Mishicotreservoir
- 65Sheboygan Marshreservoir
- 65Haytonreservoir