Big Sandy HUC8 15030201
A 5,576 km² sub-basin of the Lower Colorado region in AZ. 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
46
Stressed
Drought index
109
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
5%
p1 of record
Water assets
1,287
34 springs · 394 wells
USGS gauges (4)
- BIG SANDY RIVER NEAR WIKIEUP, AZ094244500 cfsp1 · much below normal
- TROUT CREEK ABOVE KNIGHT CREEK, NEAR WIKIEUP, AZ0942438010 cfsno long-term record
- COFER HOT SPRING OUTFLOW NEAR WIKIEUP, AZ094244220 cfsno long-term record
- BIG SANDY RIVER AT US 93 BRIDGE, NEAR WIKIEUP, AZ0942442575 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 109 | 0 | 1/1 | p1 |
| 2026-10-20 | 109 | 0 | 1/1 | p1 |
| 2026-10-19 | 109 | 0 | 1/1 | p2 |
| 2026-10-18 | 109 | 0 | 1/1 | p2 |
| 2026-10-17 | 109 | 0 | 1/1 | p2 |
| 2026-10-16 | 109 | 0 | 1/1 | p10 |
| 2026-10-15 | 158 | 0 | 0/1 | p98 |
| 2026-10-14 | 158 | 0 | 0/1 | p100 |
| 2026-10-13 | 158 | 0 | 0/1 | p100 |
| 2026-10-12 | 158 | 0 | 0/1 | p100 |
| 2026-10-11 | 158 | 0 | 1/1 | p9 |
| 2026-10-10 | 158 | 0 | 1/1 | p8 |
| 2026-10-09 | 158 | 0 | 0/1 | p38 |
| 2026-10-08 | 160 | 0 | 0/1 | p29 |
Top water assets
- 69Cow Creekriver
- 69Muddy Creekriver
- 69Trout Creekriver
- 69Cow Creekriver
- 69Muddy Creekriver
- 69Muddy Creekriver
- 69Muddy Creekriver
- 69Muddy Creekriver
- 69Muddy Creekriver
- 69Muddy Creekriver