US Army Corps of Engineers

Lower Granite Dam

Monday December 15, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 36.10 35.70 0.00 733.64 633.55 100.09 734.35 633.99
2 34.50 34.10 0.00 733.59 633.67 99.92 734.27 634.09
3 34.50 34.10 0.00 733.58 633.62 99.96 734.23 633.93
4 28.70 28.30 0.00 733.79 633.35 100.44 734.18 633.68
5 28.20 27.80 0.00 733.77 633.68 100.09 734.13 634.07
6 28.30 27.90 0.00 733.81 633.44 100.37 734.13 633.76
7 28.20 27.80 0.00 734.01 633.33 100.68 734.13 633.68
8 27.80 27.40 0.00 734.09 633.71 100.38 734.13 634.08
9 27.90 27.50 0.00 734.18 633.37 100.81 734.16 633.75
10 27.90 27.50 0.00 734.36 633.29 101.07 734.45 633.64
11 28.00 27.60 0.00 734.50 633.59 100.91 734.49 633.95
12 27.80 27.40 0.00 734.61 633.36 101.25 734.54 633.72
13 27.90 27.50 0.00 734.71 633.30 101.41 734.60 633.72
14 28.20 27.80 0.00 734.81 633.54 101.27 734.64 633.88
15 28.10 27.70 0.00 734.92 633.41 101.51 734.73 633.86
16 35.80 33.70 0.00 734.88 634.09 100.79 734.81 634.22
17 35.10 34.70 0.00 734.93 633.45 101.48 734.87 633.84
18 35.10 34.70 0.00 734.90 633.47 101.43 734.92 633.89
19 35.10 34.70 0.00 734.84 633.91 100.93 734.98 634.09
20 35.10 34.70 0.00 734.82 633.59 101.23 735.03 633.88
21 35.00 34.60 0.00 734.87 633.56 101.31 735.07 633.91
22
23
24
AVG 31.11 30.63 0.00 734.36 633.54 100.83 734.52 633.89
MAX 36.10 35.70 0.00 734.93 634.09 101.51 735.07 634.22
MIN 27.80 27.40 0.00 733.58 633.29 99.92 734.13 633.64
BUILDING STRONG®