US Army Corps of Engineers

Lower Granite Dam

Tuesday February 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.30 13.30 0.00 736.38 636.23 100.15 736.90 636.66
2 13.40 13.40 0.00 736.49 636.57 99.92 736.90 636.97
3 13.30 13.30 0.00 736.62 636.14 100.48 736.90 636.53
4 13.30 13.30 0.00 736.74 636.69 100.05 736.90 637.12
5 13.80 13.80 0.00 736.80 636.90 99.90 736.90 637.37
6 20.90 20.90 0.00 736.78 636.54 100.24 736.90 636.95
7 29.70 29.70 0.00 736.72 636.95 99.77 737.03 637.40
8 48.60 48.60 0.00 736.48 637.22 99.26 736.94 637.62
9 48.50 48.50 0.00 736.39 636.35 100.04 736.94 636.77
10 28.60 28.60 0.00 736.42 636.56 99.86 736.46 636.97
11 28.00 28.00 0.00 736.35 636.64 99.71 736.56 637.06
12 14.60 14.60 0.00 736.56 635.70 100.86 736.64 636.05
13 14.00 14.00 0.00 736.69 636.67 100.02 736.70 637.06
14 14.00 14.00 0.00 736.74 636.28 100.46 736.93 636.70
15 15.60 13.90 0.00 736.91 635.70 101.21 737.06 636.13
16 14.70 14.70 0.00 736.96 637.18 99.78 737.12 636.85
17 29.30 29.30 0.00 736.87 637.24 99.63 737.28 637.79
18 50.20 50.20 0.00 736.66 636.80 99.86 737.25 637.27
19 52.40 50.70 0.00 736.53 637.13 99.40 736.87 637.59
20 50.10 50.10 0.00 736.20 637.47 98.73 736.61 637.87
21 48.50 48.50 0.00 735.98 636.84 99.14 736.51 637.22
22 43.00 43.00 0.00 735.95 636.80 99.15 736.27 637.19
23 41.20 41.20 0.00 735.79 637.04 98.75 736.10 637.41
24 27.40 27.40 0.00 735.87 636.42 99.45 736.09 636.76
AVG 28.60 28.46 0.00 736.50 636.67 99.83 736.78 637.05
MAX 52.40 50.70 0.00 736.96 637.47 101.21 737.28 637.87
MIN 13.30 13.30 0.00 735.79 635.70 98.73 736.09 636.05
BUILDING STRONG®