US Army Corps of Engineers

Lower Granite Dam

Wednesday November 4, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 12.60 12.20 0.00 736.59 636.49 100.10 736.85 636.81
2 12.70 12.30 0.00 736.61 636.56 100.05 736.89 636.95
3 12.70 12.30 0.00 736.66 636.41 100.25 736.95 636.84
4 12.70 12.30 0.00 736.72 636.63 100.09 736.96 637.09
5 13.40 12.40 0.60 736.73 636.56 100.17 736.98 637.24
6 27.20 17.20 9.60 736.61 636.28 100.33 737.04 637.21
7 27.30 17.40 9.50 736.57 636.11 100.46 736.91 637.00
8 27.10 17.30 9.50 736.49 636.31 100.18 736.72 637.30
9 27.10 17.40 9.30 736.34 636.19 100.15 736.68 637.10
10 17.30 13.50 3.40 736.37 636.23 100.14 736.58 636.60
11 13.70 13.30 0.00 736.38 636.75 99.63 736.51 637.15
12 15.50 13.40 0.00 736.30 636.66 99.64 736.63 637.01
13 13.30 12.90 0.00 736.41 636.31 100.10 736.70 636.59
14 13.20 12.80 0.00 736.46 636.74 99.72 736.63 637.18
15 13.30 12.90 0.00 736.43 636.68 99.75 736.74 637.07
16 13.40 13.00 0.00 736.50 636.43 100.07 736.79 636.85
17 17.80 17.40 0.00 736.51 637.01 99.50 736.74 637.47
18 17.90 17.50 0.00 736.45 636.51 99.94 736.77 636.80
19 19.50 17.40 0.00 736.47 636.52 99.95 736.72 636.95
20 17.90 17.50 0.00 736.44 636.73 99.71 736.69 637.14
21 17.70 17.30 0.00 736.43 636.61 99.82 736.72 636.95
22 13.70 13.30 0.00 736.49 636.47 100.02 736.70 636.81
23 13.60 13.20 0.00 736.50 636.70 99.80 736.71 637.07
24 13.60 13.20 0.00 736.51 636.29 100.22 736.79 636.47
AVG 16.84 14.56 1.75 736.50 636.51 99.99 736.77 636.99
MAX 27.30 17.50 9.60 736.73 637.01 100.46 737.04 637.47
MIN 12.60 12.20 0.00 736.30 636.11 99.50 736.51 636.47
BUILDING STRONG®