RIVER GAUGE · BIG SANDY RIVER (WY)
Big Sandy River (WY) above Big Sandy Reservoir
Sublette County, Wyoming
Water level3.68 ft
Flow35 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action10 ft
Minor flood12 ft
Moderate flood13 ft
Major flood14 ft
The past week
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What floods at each level
- 14 ft
Major Flood Stage. Flood Plain Full. Left Bank likely seeing significant errosion.
- 13 ft
Moderate Flood Stage. Water Tops embankment by 1 ft. Gage equipment likely damaged or destroyed and embankment likely compromised.
- 12 ft
Minor Flood Stage. Top of embankment.
- 10 ft
Bankfull stage. Action Stage. Water reaches the top of staff gage on left bank flume structure.
- 8.46 ft
Record stage and flow---1,890 cfs (6/3/1986).
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jun 2, 1986 | 8.46 ft | 1,890 cfs |
| Jun 16, 1995 | 8.45 ft | 1,720 cfs |
| Jun 8, 1972 | 8.1 ft | 1,480 cfs |
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