West Branch Penobscot River HUC8 01020001
A 5,521 km² sub-basin of the New England region in CN, ME. 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
67
Moderate
Drought index
271
Severe
Area in D2+
71.18%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
82%
p40 of record
Water assets
1,545
0 springs · 54 wells
USGS gauges (2)
- S. Br. Penobscot River nr Canada Falls Lake, Maine0102724087 cfsp39 · normal
- North Branch Penobscot River nr Pittston Farm, ME01027200242 cfsp41 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 271 | 71.18 | 0/2 | p40 |
| 2026-10-18 | 271 | 71.18 | 0/2 | p41 |
| 2026-10-17 | 271 | 71.18 | 0/2 | p45 |
| 2026-10-16 | 271 | 71.18 | 0/2 | p56 |
| 2026-10-15 | 253 | 53.35 | 0/2 | p61 |
| 2026-10-14 | 253 | 53.35 | 1/2 | p21 |
| 2026-10-13 | 253 | 53.35 | 2/2 | p13 |
| 2026-10-12 | 253 | 53.35 | 2/2 | p15 |
| 2026-10-11 | 253 | 53.35 | 2/2 | p16 |
| 2026-10-10 | 253 | 53.35 | 1/2 | p17 |
| 2026-10-09 | 253 | 53.35 | 2/2 | p9 |
| 2026-10-08 | 200 | 0 | 2/2 | p8 |
| 2026-10-07 | 200 | 0 | 2/2 | p9 |
| 2026-10-06 | 200 | 0 | 2/2 | p8 |
Top water assets
- 66Canada Falls Lakereservoir
- 66Ripogenusreservoir
- 66Dolbyreservoir
- 66Seboomook Lakereservoir
- 66North Twinreservoir
- 66Medwayreservoir
- 65Wadleigh Brookriver
- 65Beaver Brookriver
- 65Nulhedus Streamriver
- 65Smith Brookriver