US Army Corps of Engineers

Lower Granite Dam

Tuesday December 2, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.20 12.80 0.00 736.02 636.16 99.86 736.17 636.57
2 13.10 12.70 0.00 735.99 636.13 99.86 736.12 636.53
3 13.20 12.80 0.00 735.99 636.19 99.80 736.25 636.64
4 13.30 12.90 0.00 736.08 636.24 99.84 736.32 636.68
5 13.30 12.90 0.00 735.99 636.35 99.64 736.28 636.84
6 13.30 12.90 0.00 736.22 636.42 99.80 736.37 636.90
7 13.10 12.70 0.00 735.99 636.35 99.64 736.47 636.74
8 13.10 12.70 0.00 736.35 636.43 99.92 736.47 636.81
9 13.20 12.80 0.00 736.35 636.43 99.92 736.49 636.79
10 13.20 12.80 0.00 736.44 636.25 100.19 736.60 636.61
11 13.20 12.80 0.00 736.47 636.25 100.22 736.62 636.62
12 13.30 12.90 0.00 736.51 636.27 100.24 736.66 636.63
13 13.20 12.80 0.00 736.54 636.25 100.29 736.74 636.64
14 13.20 12.80 0.00 736.61 636.20 100.41 736.77 636.59
15 13.20 12.80 0.00 736.63 636.22 100.41 736.80 636.63
16 13.80 13.40 0.00 736.58 636.34 100.24 736.89 636.83
17 30.60 30.20 0.00 736.45 636.72 99.73 736.91 637.20
18 32.10 31.70 0.00 736.47 636.55 99.92 736.65 636.93
19 31.60 31.20 0.00 736.30 636.41 99.89 736.48 637.04
20 27.00 26.60 0.00 736.16 636.53 99.63 736.47 636.74
21 13.90 13.50 0.00 736.24 636.10 100.14 736.36 636.46
22 13.30 12.90 0.00 736.26 636.36 99.90 736.43 636.75
23 13.30 12.90 0.00 736.27 636.24 100.03 736.54 636.51
24 13.30 12.90 0.00 736.38 635.91 100.47 736.49 636.30
AVG 16.12 15.72 0.00 736.30 636.30 100.00 736.51 636.71
MAX 32.10 31.70 0.00 736.63 636.72 100.47 736.91 637.20
MIN 13.10 12.70 0.00 735.99 635.91 99.63 736.12 636.30
BUILDING STRONG®