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Keyhole Reservoir

Critical Stages
4099.3' - Action
Flood
Moderate
Major

Latest Observation

Updated: 1:15 AM MST 12/16/25

Status: No Flooding

Stage: 4089.19 ft

Flow: -999 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
2:15 AM 12/16 4089.19 -999
2:00 AM 12/16 4089.19 -999
1:45 AM 12/16 4089.19 -999
1:30 AM 12/16 4089.19 -999
1:15 AM 12/16 4089.19 -999
1:00 AM 12/16 4089.19 -999
12:45 AM 12/16 4089.19 -999
12:30 AM 12/16 4089.2 -999
12:15 AM 12/16 4089.19 -999
12:00 AM 12/16 4089.19 -999
11:45 PM 12/15 4089.19 -999
11:30 PM 12/15 4089.19 -999
11:15 PM 12/15 4089.19 -999
11:00 PM 12/15 4089.19 -999
10:45 PM 12/15 4089.19 -999
10:30 PM 12/15 4089.19 -999
10:15 PM 12/15 4089.19 -999
10:00 PM 12/15 4089.19 -999
9:45 PM 12/15 4089.19 -999
9:30 PM 12/15 4089.19 -999
9:15 PM 12/15 4089.19 -999
9:00 PM 12/15 4089.19 -999
8:45 PM 12/15 4089.19 -999
8:30 PM 12/15 4089.19 -999
8:15 PM 12/15 4089.19 -999
8:00 PM 12/15 4089.19 -999
7:45 PM 12/15 4089.19 -999
7:30 PM 12/15 4089.19 -999
7:15 PM 12/15 4089.19 -999
7:00 PM 12/15 4089.19 -999
Hydrograph for Keyhole Reservoir
4134' - Dam crest elevation.
4128.7' - Normal water surface elevation.
4111.5' - Top of flood control.
4099.3' - Spillway crest elevation. Top of active conservation capacity.
4051' - Top of inactive conservation pool.
4036' - Top of dead storage pool.
DateStage (ft)
Mar 28, 2019 4101.98
May 21, 1978 4100.38
Mar 14, 2020 4099.58
Jun 27, 2015 4099.55
Mar 17, 2012 4099.45
Jun 14, 1999 4099.06
Mar 7, 1972 4098.78
Apr 23, 1997 4098.55
Aug 6, 1998 4098.3
Jun 13, 2014 4098
Jun 20, 2011 4097.79
May 9, 2000 4097.39
Apr 23, 2016 4097.15
Jun 18, 2001 4097
Jun 29, 2018 4096.59
May 4, 1973 4096.41
Jun 30, 1971 4096.31
Apr 22, 1979 4096.11
Mar 17, 1974 4095.74
Jun 24, 2013 4095.67

Data provided by the National Weather Service.