Coos HUC8 17100304
A 2,299 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
56
Moderate
Drought index
164
Moderate
Area in D2+
15.06%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
417
101 springs · 269 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 164 | 15.06 | — | — |
| 2026-10-19 | 164 | 15.06 | — | — |
| 2026-10-18 | 164 | 15.06 | — | — |
| 2026-10-17 | 164 | 15.06 | — | — |
| 2026-10-16 | 164 | 15.06 | — | — |
| 2026-10-15 | 164 | 15.06 | — | — |
| 2026-10-14 | 164 | 15.06 | — | — |
| 2026-10-13 | 164 | 15.06 | — | — |
| 2026-10-12 | 164 | 15.06 | — | — |
| 2026-10-11 | 164 | 15.06 | — | — |
| 2026-10-10 | 164 | 15.06 | — | — |
| 2026-10-09 | 164 | 15.06 | — | — |
| 2026-10-08 | 164 | 15.06 | — | — |
| 2026-10-07 | 164 | 15.06 | — | — |
Top water assets
- 76Big Creek — Irrigationspring
- 76Big Creek — Irrigationspring
- 76Reservoir 1 — Irrigationspring
- 76Cut Creek — Miningspring
- 76Cut Creek — Miningspring
- 76A Reservoir — Irrigationspring
- 76Reservoir 2 — Irrigationspring
- 73South Fork Coos River — Irrigationspring
- 73Big Creek — Primary And Supplemental Irrigationspring
- 73Cut Creek — Irrigation Of Cranberriesspring