Nehalem HUC8 17100202
A 2,214 km² sub-basin of the Pacific Northwest region in OR. 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
61
Moderate
Drought index
48
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
34%
p10 of record
Water assets
62
28 springs · 2 wells
USGS gauges (4)
- NEHALEM RIVER NEAR VERNONIA, OR142998005 cfsp10 · below normal
- NEHALEM RIVER NEAR FOSS, OR1430100093 cfsp11 · below normal
- NEHALEM RIVER AT JEWELL, OR1430035040 cfsno long-term record
- NEHALEM RIVER AT NEHALEM, OR143013404,020 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 48 | 0 | 2/2 | p10 |
| 2026-10-18 | 48 | 0 | 2/2 | p11 |
| 2026-10-17 | 48 | 0 | 2/2 | p12 |
| 2026-10-16 | 48 | 0 | 2/2 | p12 |
| 2026-10-15 | 48 | 0 | 2/2 | p13 |
| 2026-10-14 | 48 | 0 | 2/2 | p14 |
| 2026-10-13 | 48 | 0 | 2/2 | p17 |
| 2026-10-12 | 48 | 0 | 2/2 | p18 |
| 2026-10-11 | 48 | 0 | 2/2 | p15 |
| 2026-10-10 | 48 | 0 | 2/2 | p13 |
| 2026-10-09 | 48 | 0 | 2/2 | p14 |
| 2026-10-08 | 48 | 0 | 2/2 | p14 |
| 2026-10-07 | 48 | 0 | 2/2 | p20 |
| 2026-10-06 | 48 | 0 | 2/2 | p21 |
Top water assets
- 76Bobs Creek — Power Developmentspring
- 76Zimmerman Creek — Industrial/Manufacturing Usesspring
- 76Vosburg Creek — Industrial/Manufacturing Usesspring
- 73Vosburg Creek — Industrial/Manufacturing Usesspring
- 66Pearl Creek — Domesticspring
- 66Fishhawk Lakereservoir
- 66Messhouse Creek — Industrial/Manufacturing Usesspring
- 66Unnamed Stream — Domesticspring
- 66Alder Creek — Irrigationspring
- 66Unnamed Creek — Domesticspring