Lower Columbia-Sandy HUC8 17080001
A 2,264 km² sub-basin of the Pacific Northwest region in OR, WA. 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
48
Stressed
Drought index
162
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
82%
of 11 reporting
Median flow
32%
p8 of record
Water assets
2,276
458 springs · 962 wells
USGS gauges (13)
- BLAZED ALDER CREEK NEAR RHODODENDRON, OR141388001 cfsp6 · much below normal
- SOUTH FORK BULL RUN RIVER NEAR BULL RUN, OR141398006 cfsp7 · much below normal
- LITTLE SANDY RIVER NEAR BULL RUN, OR1414150010 cfsp7 · much below normal
- BULL RUN RIVER NEAR MULTNOMAH FALLS, OR1413885031 cfsp8 · much below normal
- NORTH FORK BULL RUN RIVER NEAR MULTNOMAH FALLS, OR141389008 cfsp8 · much below normal
- SANDY RIVER NEAR MARMOT, OR14137000201 cfsp8 · much below normal
- FIR CREEK NEAR BRIGHTWOOD, OR141388702 cfsp9 · much below normal
- SANDY RIVER BLW BULL RUN RIVER, NR BULL RUN, OR14142500274 cfsp9 · much below normal
- BULL RUN RIVER AT LOWER FLUME NR BRIGHTWOOD, OR1413872013 cfsp15 · below normal
- BULL RUN RIVER NEAR BULL RUN (RIVER ONLY), OR1414000034 cfsp29 · normal
- BEAVER CREEK AT TROUTDALE, OR141428006 cfsp58 · normal
- BULL RUN RIVER BLW BULL RUN RES 2, NR BULL RUN, OR1413994035 cfsno long-term record
- KELLY CREEK AT KANE ROAD NEAR GRESHAM, OR141425800 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 162 | 0 | 9/11 | p8 |
| 2026-10-18 | 162 | 0 | 9/11 | p8 |
| 2026-10-17 | 162 | 0 | 9/11 | p8 |
| 2026-10-16 | 162 | 0 | 9/11 | p8 |
| 2026-10-15 | 162 | 0 | 9/11 | p8 |
| 2026-10-14 | 162 | 0 | 9/11 | p8 |
| 2026-10-13 | 162 | 0 | 9/11 | p9 |
| 2026-10-12 | 162 | 0 | 9/11 | p8 |
| 2026-10-11 | 162 | 0 | 9/11 | p10 |
| 2026-10-10 | 162 | 0 | 9/11 | p11 |
| 2026-10-09 | 162 | 0 | 9/11 | p9 |
| 2026-10-08 | 162 | 0 | 8/11 | p9 |
| 2026-10-07 | 162 | 0 | 9/11 | p9 |
| 2026-10-06 | 162 | 0 | 9/11 | p9 |
Top water assets
- 76Mu — Ce S2-*00924Cwrisspring
- 76Ci — Ce S2-*03060Cwrisspring
- 76Ci Fr — Ce S2-*00891Cwrisspring
- 76Ci — Ce S2-*21182Cwrisspring
- 76Fs — Ce S2-26276Cwrisspring
- 76Ds Ir Po — Ce S2-26161spring
- 76Ir — Ce S2-*11896Cwrisspring
- 76Bull Run River — Power Developmentspring
- 76Bull Run River — Power Developmentspring
- 73Well 3 — Nursery Useswell