Upper Androscoggin River HUC8 01040001
A 3,549 km² sub-basin of the New England region in CN, ME, NH. 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
60
Moderate
Drought index
67
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
75%
of 4 reporting
Median flow
66%
p11 of record
Water assets
1,784
14 springs · 690 wells
USGS gauges (4)
- Androscoggin River at Errol, NH010535001,000 cfsp8 · much below normal
- Androscoggin River near Gorham, NH010540001,200 cfsp8 · much below normal
- Androscoggin River below Bog Brook at Cambridge NH010536001,050 cfsp13 · below normal
- Diamond River near Wentworth Location, NH0105250043 cfsp27 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 67 | 0 | 3/4 | p11 |
Top water assets
- 67Middle Branch Dead Diamond Riverriver
- 67West Branch Little Magalloway Riverriver
- 67Middle Branch Dead Diamond Riverriver
- 67Middle Branch Little Magalloway Riverriver
- 67East Branch Dead Diamond Riverriver
- 67East Branch Dead Diamond Riverriver
- 67Cupsuptic Riverriver
- 67Bereau Brookriver
- 67Cupsuptic Riverriver
- 67Cupsuptic Riverriver