Great Salt Lake HUC8 16020310
A 4,527 km² sub-basin of the Great Basin region in UT. 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
47
Stressed
Drought index
335
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
57%
p24 of record
Water assets
112
54 springs · 21 wells
USGS gauges (4)
- GSL FARMINGTON BAY OUTFLOW AT CAUSEWAY BRIDGE410401112134801121 cfsp23 · below normal
- GSL BREACH AT LAKESIDE, UT100100200 cfsp25 · normal
- BEAR R BAY OUTFLOW AT CAUSEWAY BRG NR WARREN, UT1001006030 cfsno long-term record
- BEAR RIVER BAY OUTFLOW AT GSL MINERALS CORP BRIDGE411403112200801155 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 335 | 100 | 1/2 | p24 |
Top water assets
- 74Great Salt Lake — Olake
- 67Bear River Bay Outflow At Gsl Minerals Corp Bridgeriver
- 67Bear R Bay Outflow At Causeway Brg Nr Warren, Utlake
- 67Farmington Creekriver
- 51Great Salt Lake — Olake
- 44Great Salt Lake Near Saline, Utlake
- 44Gsl 3510, 6 Mi West Of Antelope Islandlake
- 44Great Salt Lake At Saltair Boat Harbor, Utlake
- 44Antelope Island Causeway Well 3-60well
- 44Antelope Island Causeway Well 4-75well