US Army Corps of Engineers

Lower Granite Dam

Thursday October 23, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.50 13.10 0.00 736.84 636.76 100.08 737.05 637.06
2 13.50 13.10 0.00 736.92 636.49 100.43 737.00 636.99
3 13.60 13.20 0.00 736.95 636.56 100.39 737.06 636.97
4 13.50 13.10 0.00 736.96 636.67 100.29 737.11 637.03
5 14.60 13.10 1.10 736.99 636.46 100.53 737.06 637.34
6 23.10 12.80 9.90 736.85 635.96 100.89 737.11 637.19
7 22.80 12.60 9.80 736.88 635.69 101.19 737.05 636.85
8 22.70 12.40 9.90 736.82 635.95 100.87 736.90 637.19
9 22.60 12.60 9.60 736.69 636.07 100.62 736.90 636.96
10 17.60 17.20 0.00 736.75 636.37 100.38 736.84 636.78
11 17.70 17.30 0.00 736.75 636.57 100.18 736.81 636.92
12 13.60 13.20 0.00 736.74 636.37 100.37 736.85 636.79
13 13.40 13.00 0.00 736.78 636.51 100.27 736.89 636.95
14 13.30 12.90 0.00 736.82 636.58 100.24 736.90 636.97
15 13.40 13.00 0.00 736.82 636.50 100.32 736.95 636.98
16 19.30 17.20 0.00 736.79 637.03 99.76 737.00 637.64
17 18.00 17.60 0.00 736.81 636.56 100.25 736.95 637.02
18 17.80 17.40 0.00 736.79 636.37 100.42 736.91 636.75
19 17.90 17.50 0.00 736.75 636.67 100.08 736.96 636.80
20 17.80 17.40 0.00 736.81 636.32 100.49 736.93 636.66
21 17.70 17.30 0.00 736.79 636.14 100.65 736.87 636.58
22 17.50 17.10 0.00 736.77 636.14 100.63 736.89 636.43
23 13.60 13.20 0.00 736.81 636.19 100.62 736.89 636.44
24 13.40 13.00 0.00 736.83 636.08 100.75 736.92 636.68
AVG 16.75 14.60 1.68 736.82 636.38 100.45 736.95 636.92
MAX 23.10 17.60 9.90 736.99 637.03 101.19 737.11 637.64
MIN 13.30 12.40 0.00 736.69 635.69 99.76 736.81 636.43
BUILDING STRONG®