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 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
53
Moderate
Drought index
329
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
132%
p75 of record
Water assets
112
54 springs · 21 wells
USGS gauges (4)
- GSL FARMINGTON BAY OUTFLOW AT CAUSEWAY BRIDGE410401112134801487 cfsp75 · above normal
- GSL BREACH AT LAKESIDE, UT100100200 cfsno long-term record
- 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 |
|---|---|---|---|---|
| 2026-10-22 | 329 | 100 | 0/1 | p75 |
| 2026-10-21 | 329 | 100 | 0/1 | p60 |
| 2026-10-20 | 329 | 100 | 0/1 | p77 |
| 2026-10-19 | 329 | 100 | 0/1 | p56 |
| 2026-10-18 | 329 | 100 | 0/1 | p70 |
| 2026-10-17 | 329 | 100 | 0/1 | p82 |
| 2026-10-16 | 329 | 100 | 0/1 | p78 |
| 2026-10-15 | 329 | 100 | 0/2 | p54 |
| 2026-10-14 | 329 | 100 | 0/2 | p44 |
| 2026-10-13 | 329 | 100 | 0/2 | p45 |
| 2026-10-12 | 329 | 100 | 0/2 | p53 |
| 2026-10-11 | 329 | 100 | 0/2 | p56 |
| 2026-10-10 | 329 | 100 | 0/2 | p48 |
| 2026-10-09 | 329 | 100 | 0/2 | p49 |
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