US Army Corps of Engineers

Lower Granite Dam

Sunday January 25, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 14.00 14.00 0.00 736.11 632.89 103.22 735.90 633.25
2 12.90 12.90 0.00 736.22 633.89 102.33 735.90 634.30
3 13.00 13.00 0.00 736.35 633.51 102.84 735.90 633.67
4 17.90 17.90 0.00 736.50 633.19 103.31 735.90 633.76
5 27.40 27.40 0.00 736.46 634.31 102.15 735.90 634.98
6 42.20 42.20 0.00 736.31 634.10 102.21 735.90 634.62
7 55.50 55.50 0.00 736.15 634.05 102.10 735.90 634.46
8 55.00 55.00 0.00 735.89 634.44 101.45 735.90 634.88
9 55.30 55.30 0.00 735.58 634.14 101.44 735.90 634.41
10 42.10 42.10 0.00 735.53 633.59 101.94 735.90 633.92
11 27.70 27.70 0.00 735.55 633.64 101.91 735.90 634.06
12 26.90 26.90 0.00 735.46 633.82 101.64 735.90 634.10
13 18.30 18.30 0.00 735.66 633.27 102.39 735.90 633.51
14 17.50 17.50 0.00 735.78 633.60 102.18 735.90 634.03
15 18.50 18.50 0.00 735.77 633.77 102.00 735.90 634.19
16 26.90 26.90 0.00 735.85 633.37 102.48 735.90 633.79
17 28.10 28.10 0.00 735.91 633.70 102.21 735.90 634.36
18 41.10 41.10 0.00 735.70 634.13 101.57 735.90 634.37
19 40.90 40.90 0.00 735.66 633.59 102.07 735.90 633.99
20 41.80 41.80 0.00 735.59 633.96 101.63 735.90 634.44
21 41.20 41.20 0.00 735.42 634.08 101.34 735.90 634.41
22 30.50 30.50 0.00 735.53 633.15 102.38 735.90 633.45
23 18.70 18.70 0.00 735.66 633.39 102.27 735.90 633.79
24 17.90 17.90 0.00 735.65 633.76 101.89 735.90 634.13
AVG 30.47 30.47 0.00 735.85 633.72 102.12 735.90 634.12
MAX 55.50 55.50 0.00 736.50 634.44 103.31 735.90 634.98
MIN 12.90 12.90 0.00 735.42 632.89 101.34 735.90 633.25
BUILDING STRONG®