US Army Corps of Engineers

Lower Granite Dam

Tuesday April 7, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 68.30 12.00 55.90 735.07 633.50 101.57 735.40 634.77
2 68.20 12.00 55.90 735.06 633.26 101.80 735.42 634.69
3 68.20 11.90 55.90 735.06 633.43 101.63 735.43 634.73
4 68.20 12.00 55.90 735.04 633.38 101.66 735.44 634.74
5 68.20 12.00 55.80 735.02 633.33 101.69 735.45 634.57
6 68.20 12.00 55.80 734.97 633.25 101.72 735.44 634.51
7 68.00 12.00 55.70 734.81 633.42 101.39 735.44 634.45
8 68.30 12.00 56.00 734.88 633.35 101.53 735.42 634.54
9 68.30 12.00 55.90 734.81 633.47 101.34 735.41 634.50
10 64.20 12.00 51.80 734.80 633.31 101.49 735.39 634.61
11 64.10 12.00 51.70 734.79 633.40 101.39 735.39 634.55
12 64.10 12.00 51.60 734.79 633.18 101.61 735.40 634.62
13 62.20 12.00 49.80 734.85 633.23 101.62 735.41 634.67
14 62.10 11.90 49.80 734.89 633.32 101.57 735.42 634.58
15 62.20 11.90 49.80 734.90 633.50 101.40 735.44 634.53
16 62.30 12.00 49.90 734.95 633.20 101.75 735.47 634.58
17 62.40 12.00 50.00 734.96 633.04 101.92 735.48 634.55
18 62.50 12.00 50.00 735.02 633.28 101.74 735.49 634.53
19 62.50 12.00 50.10 735.06 633.14 101.92 735.49 634.61
20 62.50 11.90 50.20 735.06 632.99 102.07 735.49 634.58
21 62.60 12.00 50.20 735.08 633.19 101.89 735.50 634.58
22 64.50 12.20 50.30 735.10 633.14 101.96 735.50 634.52
23 62.80 12.10 50.30 735.10 632.98 102.12 735.51 634.54
24 62.80 12.00 50.30 735.11 633.22 101.89 735.51 634.56
AVG 64.90 12.00 52.44 734.97 633.27 101.69 735.45 634.59
MAX 68.30 12.20 56.00 735.11 633.50 102.12 735.51 634.77
MIN 62.10 11.90 49.80 734.79 632.98 101.34 735.39 634.45