North Santiam HUC8 17090005
A 1,979 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
40
Stressed
Drought index
293
Severe
Area in D2+
87.97%
0% exceptional (D4)
Gauges below normal
100%
of 8 reporting
Median flow
58%
p17 of record
Water assets
562
11 springs · 285 wells
USGS gauges (10)
- BLOWOUT CREEK NEAR DETROIT, OR141803004 cfsp8 · much below normal
- NO SANTIAM R BLW BOULDER CRK, NR DETROIT, OR14178000279 cfsp9 · much below normal
- BREITENBUSH R ABV FRENCH CR NR DETROIT, OR.1417900097 cfsp10 · much below normal
- NORTH SANTIAM R AT GREENS BRIDGE, NR JEFFERSON, OR141841001,170 cfsp10 · below normal
- LITTLE NORTH SANTIAM RIVER NEAR MEHAMA, OR1418250048 cfsp24 · below normal
- SANTIAM RIVER AT JEFFERSON, OR141890002,280 cfsp24 · below normal
- NORTH SANTIAM RIVER AT MEHAMA, OR141830001,310 cfsp25 · below normal
- NORTH SANTIAM RIVER AT NIAGARA, OR141815001,270 cfsp25 · below normal
- NORTH SANTIAM RIVER NR MARION FORKS, OR1417445055 cfsno long-term record
- BREITENBUSH RIVER BLW BREITENBUSH HOT SPRINGS, OR1417861087 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 293 | 87.97 | 8/8 | p17 |
| 2026-10-17 | 293 | 87.97 | 7/8 | p19 |
| 2026-10-16 | 293 | 87.97 | 4/8 | p18 |
| 2026-10-15 | 293 | 87.97 | 4/8 | p18 |
| 2026-10-14 | 293 | 87.97 | 4/8 | p19 |
| 2026-10-13 | 293 | 87.97 | 4/8 | p20 |
| 2026-10-12 | 293 | 87.97 | 4/8 | p18 |
| 2026-10-11 | 293 | 87.97 | 4/8 | p19 |
| 2026-10-10 | 293 | 87.97 | 4/8 | p18 |
| 2026-10-09 | 293 | 87.97 | 4/8 | p20 |
| 2026-10-08 | 293 | 87.97 | 4/8 | p19 |
| 2026-10-07 | 293 | 87.97 | 4/8 | p20 |
| 2026-10-06 | 293 | 87.97 | 4/8 | p21 |
| 2026-10-05 | 293 | 87.97 | 4/8 | p24 |
Top water assets
- 76Breitenbush Springs — Commercial Usesspring
- 73A Well — Irrigationwell
- 73A Well — Irrigationwell
- 73A Well — Irrigationwell
- 73A Well — Irrigationwell
- 73Infiltration Trench — Irrigationwell
- 73Well 5 — Irrigationwell
- 73Well 4 — Irrigationwell
- 73A Well — Irrigationwell
- 73A Sump — Irrigationwell