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 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
69
Moderate
Drought index
162
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
9%
of 11 reporting
Median flow
109%
p52 of record
Water assets
2,276
458 springs · 962 wells
USGS gauges (13)
- BULL RUN RIVER AT LOWER FLUME NR BRIGHTWOOD, OR1413872015 cfsp19 · below normal
- BULL RUN RIVER NEAR BULL RUN (RIVER ONLY), OR1414000023 cfsp34 · normal
- NORTH FORK BULL RUN RIVER NEAR MULTNOMAH FALLS, OR1413890012 cfsp36 · normal
- LITTLE SANDY RIVER NEAR BULL RUN, OR1414150016 cfsp42 · normal
- SOUTH FORK BULL RUN RIVER NEAR BULL RUN, OR1413980012 cfsp43 · normal
- BULL RUN RIVER NEAR MULTNOMAH FALLS, OR1413885052 cfsp52 · normal
- SANDY RIVER BLW BULL RUN RIVER, NR BULL RUN, OR14142500458 cfsp61 · normal
- BLAZED ALDER CREEK NEAR RHODODENDRON, OR141388004 cfsp64 · normal
- FIR CREEK NEAR BRIGHTWOOD, OR141388705 cfsp67 · normal
- SANDY RIVER NEAR MARMOT, OR14137000405 cfsp70 · normal
- BEAVER CREEK AT TROUTDALE, OR1414280013 cfsp96 · much above normal
- BULL RUN RIVER BLW BULL RUN RES 2, NR BULL RUN, OR1413994019 cfsno long-term record
- KELLY CREEK AT KANE ROAD NEAR GRESHAM, OR141425801 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 162 | 0 | 1/11 | p52 |
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