US Army Corps of Engineers

Lower Granite Dam

Friday October 17, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.20 12.80 0.00 736.69 636.77 99.92 736.80 637.14
2 13.10 12.70 0.00 736.71 636.70 100.01 736.79 637.07
3 13.10 12.70 0.00 736.70 636.28 100.42 736.86 636.52
4 13.20 12.80 0.00 736.76 636.74 100.02 736.89 637.09
5 14.60 13.00 1.30 736.75 636.61 100.14 736.89 637.49
6 28.90 17.30 9.60 736.60 636.24 100.36 736.93 637.59
7 27.30 17.50 9.50 736.53 635.88 100.65 736.78 637.02
8 27.10 17.20 9.50 736.48 636.18 100.30 736.55 637.18
9 22.40 12.70 9.30 736.39 636.05 100.34 736.51 636.80
10 13.10 12.50 0.10 736.43 636.47 99.96 736.50 636.89
11 12.90 12.50 0.00 736.42 636.90 99.52 736.51 637.22
12 13.00 12.60 0.00 736.42 636.54 99.88 736.60 636.71
13 13.00 12.60 0.00 736.46 636.61 99.85 736.61 636.98
14 13.00 12.60 0.00 736.48 637.07 99.41 736.62 637.52
15 13.00 12.60 0.00 736.45 636.57 99.88 736.76 636.96
16 12.90 12.50 0.00 736.46 636.85 99.61 736.85 637.30
17 13.20 12.80 0.00 736.54 637.08 99.46 736.81 637.37
18 13.00 12.60 0.00 736.60 636.64 99.96 736.82 637.00
19 12.90 12.50 0.00 736.57 636.82 99.75 736.86 637.21
20 14.70 12.60 0.00 736.63 636.89 99.74 736.86 637.26
21 13.00 12.60 0.00 736.66 636.57 100.09 736.86 636.89
22 13.00 12.60 0.00 736.69 636.89 99.80 736.91 637.41
23 12.90 12.50 0.00 736.75 636.74 100.01 736.93 636.99
24 13.00 12.60 0.00 736.78 636.47 100.31 736.96 636.83
AVG 15.40 13.23 1.64 736.58 636.61 99.97 736.77 637.10
MAX 28.90 17.50 9.60 736.78 637.08 100.65 736.96 637.59
MIN 12.90 12.50 0.00 736.39 635.88 99.41 736.50 636.52