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 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
72
Moderate
Drought index
100
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
33%
of 3 reporting
Median flow
104%
p53 of record
Water assets
1,144
17 springs · 192 wells
USGS gauges (3)
- DEER C NR SMARTSVILLE CA114185002 cfsp20 · below normal
- YUBA R NR MARYSVILLE CA11421000821 cfsp53 · normal
- N YUBA R BL GOODYEARS BAR CA11413000148 cfsp54 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 100 | 0 | 1/3 | p53 |
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