US Army Corps of Engineers

Lower Granite Dam

Wednesday October 22, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.30 12.90 0.00 736.83 636.56 100.27 736.94 636.90
2 13.40 13.00 0.00 736.88 636.35 100.53 736.93 636.73
3 13.30 12.90 0.00 736.95 636.38 100.57 736.94 636.83
4 13.40 13.00 0.00 736.95 636.48 100.47 737.03 636.83
5 14.70 13.10 1.20 736.93 636.25 100.68 737.05 637.17
6 27.40 17.20 9.90 736.85 636.09 100.76 737.06 637.34
7 27.60 17.40 9.80 736.77 635.70 101.07 736.89 636.81
8 27.30 17.20 9.70 736.67 635.92 100.75 736.74 637.13
9 22.60 12.70 9.50 736.60 636.08 100.52 736.71 636.93
10 12.90 12.50 0.00 736.61 636.28 100.33 736.67 636.68
11 14.70 12.60 0.00 736.64 636.78 99.86 736.77 637.14
12 14.90 12.80 0.00 736.66 636.49 100.17 736.81 636.74
13 13.30 12.90 0.00 736.72 636.44 100.28 736.82 637.12
14 14.90 12.80 0.00 736.72 636.86 99.86 736.87 637.16
15 13.20 12.80 0.00 736.72 636.37 100.35 736.95 636.92
16 13.30 12.90 0.00 736.81 636.78 100.03 736.93 637.18
17 19.40 17.30 0.00 736.76 637.01 99.75 737.00 637.26
18 17.90 17.50 0.00 736.74 636.43 100.31 737.00 636.79
19 17.60 17.20 0.00 736.78 636.74 100.04 736.91 637.12
20 17.70 17.30 0.00 736.72 636.73 99.99 736.94 637.09
21 17.70 17.30 0.00 736.71 636.30 100.41 736.98 636.68
22 17.60 17.20 0.00 736.78 636.76 100.02 736.93 637.15
23 13.70 13.30 0.00 736.80 636.40 100.40 736.89 636.69
24 13.60 13.20 0.00 736.80 636.42 100.38 737.00 636.87
AVG 16.89 14.54 1.67 736.77 636.44 100.33 736.91 636.97
MAX 27.60 17.50 9.90 736.95 637.01 101.07 737.06 637.34
MIN 12.90 12.50 0.00 736.60 635.70 99.75 736.67 636.68
BUILDING STRONG®