US Army Corps of Engineers

Lower Granite Dam

Friday January 23, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 27.20 27.20 0.00 736.03 633.87 102.16 736.23 634.03
2 27.10 27.10 0.00 736.15 633.73 102.42 736.23 634.20
3 27.00 27.00 0.00 736.16 633.72 102.44 736.28 634.21
4 28.80 27.10 0.00 736.19 633.69 102.50 736.37 634.01
5 27.70 27.70 0.00 736.22 633.87 102.35 736.38 634.46
6 41.80 41.80 0.00 736.06 634.55 101.51 736.40 635.09
7 42.30 42.30 0.00 735.99 633.90 102.09 736.29 634.19
8 42.20 42.20 0.00 735.89 633.95 101.94 736.12 634.44
9 41.80 41.80 0.00 735.76 634.30 101.46 736.09 634.58
10 35.80 35.80 0.00 735.79 633.47 102.32 736.02 633.96
11 27.70 27.70 0.00 735.86 633.47 102.39 735.94 633.95
12 27.30 27.30 0.00 735.83 633.91 101.92 736.07 634.24
13 27.10 27.10 0.00 735.94 633.48 102.46 736.13 633.80
14 27.10 27.10 0.00 736.03 633.46 102.57 736.12 633.94
15 27.10 27.10 0.00 736.02 633.71 102.31 736.18 634.15
16 27.60 27.60 0.00 736.03 633.56 102.47 736.25 634.06
17 43.00 43.00 0.00 735.86 634.18 101.68 736.25 634.56
18 42.30 42.30 0.00 735.82 633.86 101.96 736.08 634.17
19 42.40 42.40 0.00 735.69 633.74 101.95 735.93 634.22
20 42.80 42.80 0.00 735.49 634.26 101.23 735.85 634.59
21 42.60 42.60 0.00 735.49 633.81 101.68 735.75 634.06
22 30.40 28.70 0.00 735.58 633.38 102.20 735.75 633.74
23 27.90 27.90 0.00 735.55 633.88 101.67 735.75 634.31
24 15.50 15.50 0.00 735.79 633.35 102.44 735.75 633.50
AVG 33.02 32.88 0.00 735.88 633.80 102.09 736.09 634.19
MAX 43.00 43.00 0.00 736.22 634.55 102.57 736.40 635.09
MIN 15.50 15.50 0.00 735.49 633.35 101.23 735.75 633.50
BUILDING STRONG®