US Army Corps of Engineers

Lower Granite Dam

Monday January 26, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 17.90 17.90 0.00 735.89 633.28 102.61 735.90 633.51
2 17.80 17.80 0.00 736.08 633.43 102.65 735.90 633.87
3 17.90 17.90 0.00 736.09 633.62 102.47 735.90 634.04
4 18.50 18.50 0.00 736.20 633.37 102.83 735.90 633.98
5 27.90 27.90 0.00 736.20 633.94 102.26 735.90 634.49
6 40.70 40.70 0.00 736.02 634.05 101.97 736.20 634.39
7 41.20 41.20 0.00 735.96 633.60 102.36 736.20 634.05
8 40.90 40.90 0.00 735.82 633.95 101.87 736.20 634.61
9 40.00 40.00 0.00 735.65 633.92 101.73 736.20 634.31
10 40.90 40.90 0.00 735.61 633.50 102.11 736.20 633.80
11 31.60 31.60 0.00 735.62 633.51 102.11 735.60 634.00
12 16.80 16.80 0.00 735.68 633.29 102.39 735.60 633.69
13 13.30 13.30 0.00 735.74 633.32 102.42 735.60 633.70
14 12.90 12.90 0.00 735.93 633.47 102.46 735.80 633.84
15 13.10 13.10 0.00 736.12 633.32 102.80 735.80 633.71
16 13.70 13.70 0.00 736.17 633.42 102.75 736.15 634.24
17 27.60 27.60 0.00 736.11 633.90 102.21 736.30 634.36
18 39.50 39.50 0.00 736.04 633.77 102.27 736.30 634.16
19 40.20 40.20 0.00 735.93 633.82 102.11 736.30 634.43
20 40.70 40.70 0.00 735.75 634.01 101.74 736.30 634.38
21 42.10 40.40 0.00 735.66 633.82 101.84 736.30 634.07
22 28.40 28.40 0.00 735.78 633.41 102.37 736.30 633.89
23 18.40 18.40 0.00 735.85 633.71 102.14 736.30 634.18
24 13.50 13.50 0.00 735.99 633.60 102.39 736.30 633.88
AVG 27.31 27.24 0.00 735.91 633.63 102.29 736.06 634.07
MAX 42.10 41.20 0.00 736.20 634.05 102.83 736.30 634.61
MIN 12.90 12.90 0.00 735.61 633.28 101.73 735.60 633.51