US Army Corps of Engineers

Lower Granite Dam

Friday October 30, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.30 12.90 0.00 736.70 636.73 99.97 736.95 637.18
2 15.00 12.90 0.00 736.74 636.68 100.06 737.00 637.01
3 13.30 12.90 0.00 736.79 636.24 100.55 737.01 636.56
4 13.30 12.90 0.00 736.81 636.79 100.02 737.04 637.27
5 18.20 17.30 0.50 736.76 636.59 100.17 737.09 637.18
6 27.40 17.30 9.70 736.69 636.02 100.67 737.05 637.15
7 27.40 17.40 9.60 736.63 636.31 100.32 736.89 637.32
8 27.20 17.30 9.50 736.55 636.23 100.32 736.76 637.16
9 22.50 12.90 9.20 736.47 636.27 100.20 736.70 636.81
10 13.10 12.70 0.00 736.50 636.54 99.96 736.64 636.92
11 13.20 12.80 0.00 736.48 636.62 99.86 736.69 637.04
12 13.20 12.80 0.00 736.49 636.46 100.03 736.80 636.77
13 13.10 12.70 0.00 736.58 636.52 100.06 736.80 636.89
14 13.20 12.80 0.00 736.59 636.76 99.83 736.81 637.18
15 13.30 12.90 0.00 736.58 636.58 100.00 736.90 636.93
16 13.30 12.90 0.00 736.62 636.75 99.87 736.92 637.22
17 17.60 17.20 0.00 736.59 636.86 99.73 736.96 637.27
18 17.80 17.40 0.00 736.59 636.60 99.99 736.97 636.87
19 17.70 17.30 0.00 736.61 636.80 99.81 736.93 637.22
20 17.70 17.30 0.00 736.58 636.69 99.89 736.91 637.08
21 17.60 17.20 0.00 736.59 636.48 100.11 736.91 636.76
22 13.50 13.10 0.00 736.66 636.54 100.12 736.87 636.73
23 13.10 12.70 0.00 736.66 636.57 100.09 736.92 636.95
24 14.80 12.70 0.00 736.68 636.29 100.39 736.99 636.64
AVG 16.66 14.51 1.60 736.62 636.54 100.08 736.90 637.00
MAX 27.40 17.40 9.70 736.81 636.86 100.67 737.09 637.32
MIN 13.10 12.70 0.00 736.47 636.02 99.73 736.64 636.56