US Army Corps of Engineers

Lower Granite Dam

Saturday December 6, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 13.60 13.20 0.00 735.11 635.72 99.39 735.48 636.09
2 13.60 13.20 0.00 735.15 635.64 99.51 735.48 636.08
3 13.60 13.20 0.00 735.19 635.75 99.44 735.54 636.10
4 13.50 13.10 0.00 735.23 635.77 99.46 735.61 636.09
5 14.00 13.60 0.00 735.26 636.03 99.23 735.65 636.61
6 26.00 25.60 0.00 735.15 635.92 99.23 735.69 636.26
7 27.20 26.80 0.00 735.15 635.66 99.49 735.60 635.96
8 26.10 25.70 0.00 735.12 635.84 99.28 735.54 636.25
9 14.10 13.70 0.00 735.09 635.66 99.43 735.52 636.10
10 13.60 13.20 0.00 735.10 635.42 99.68 735.52 635.84
11 13.50 13.10 0.00 735.21 635.73 99.48 735.54 635.97
12 13.50 13.10 0.00 735.27 635.60 99.67 735.54 635.98
13 13.40 13.00 0.00 735.25 635.57 99.68 735.60 635.96
14 13.50 13.10 0.00 735.33 635.42 99.91 735.69 635.78
15 13.50 13.10 0.00 735.44 635.49 99.95 735.70 635.93
16 15.20 14.80 0.00 735.33 635.88 99.45 735.73 636.39
17 26.80 26.40 0.00 735.30 635.78 99.52 735.81 636.22
18 27.30 26.90 0.00 735.32 635.34 99.98 735.70 635.70
19 27.10 26.70 0.00 735.20 635.86 99.34 735.55 636.19
20 27.30 26.90 0.00 735.07 635.70 99.37 735.54 636.06
21 27.10 26.70 0.00 735.10 635.21 99.89 735.53 635.53
22 15.60 15.20 0.00 735.20 635.32 99.88 735.50 635.58
23 13.20 12.80 0.00 735.14 635.52 99.62 735.49 635.86
24 13.20 12.80 0.00 735.19 635.28 99.91 735.49 635.72
AVG 18.15 17.75 0.00 735.20 635.63 99.57 735.59 636.01
MAX 27.30 26.90 0.00 735.44 636.03 99.98 735.81 636.61
MIN 13.20 12.80 0.00 735.07 635.21 99.23 735.48 635.53
BUILDING STRONG®