Upper Yuba HUC8 18020125
A 3,483 km² sub-basin of the California region in CA. 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
79
Healthy
Drought index
100
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
91%
p43 of record
Water assets
1,144
17 springs · 192 wells
USGS gauges (3)
- N YUBA R BL GOODYEARS BAR CA11413000122 cfsp29 · normal
- YUBA R NR MARYSVILLE CA11421000575 cfsp43 · normal
- DEER C NR SMARTSVILLE CA114185009 cfsp46 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 100 | 0 | 0/3 | p43 |
| 2026-10-21 | 100 | 0 | 0/3 | p39 |
| 2026-10-20 | 100 | 0 | 0/3 | p38 |
| 2026-10-19 | 100 | 0 | 1/3 | p27 |
| 2026-10-18 | 100 | 0 | 1/3 | p29 |
| 2026-10-17 | 100 | 0 | 1/3 | p28 |
| 2026-10-16 | 100 | 0 | 0/3 | p38 |
| 2026-10-15 | 100 | 0 | 0/3 | p34 |
| 2026-10-14 | 100 | 0 | 0/3 | p36 |
| 2026-10-13 | 100 | 0 | 0/3 | p43 |
| 2026-10-12 | 100 | 0 | 0/3 | p50 |
| 2026-10-11 | 100 | 0 | 1/3 | p50 |
| 2026-10-10 | 100 | 0 | 1/3 | p49 |
| 2026-10-09 | 100 | 0 | 0/3 | p47 |
Top water assets
- 71Bowman Archreservoir
- 69Middle Yuba Riverriver
- 69Poorman Creekriver
- 69Slate Creekriver
- 69Blue Lakereservoir
- 69South Yuba Riverriver
- 69Long Valley Creekriver
- 69Upper Feeleyreservoir
- 69North Fork Canyon Creekriver
- 69Lake Creekriver