US Army Corps of Engineers

Lower Granite Dam

Sunday May 3, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 62.30 12.10 49.80 734.93 633.06 101.87 735.55 634.47
2 62.30 12.00 49.90 734.92 633.34 101.58 735.53 634.56
3 62.30 12.00 49.80 734.93 633.12 101.81 735.54 634.55
4 62.40 12.10 49.90 734.94 632.99 101.95 735.54 634.33
5 62.40 12.10 50.00 734.93 633.23 101.70 735.53 634.60
6 62.40 12.10 50.00 734.94 633.20 101.74 735.53 634.50
7 62.40 12.10 50.00 734.94 633.16 101.78 735.54 634.42
8 62.50 12.00 50.10 735.00 633.10 101.90 735.54 634.45
9 62.60 12.00 50.10 735.01 632.95 102.06 735.54 634.37
10 62.60 12.10 50.10 735.09 633.17 101.92 735.56 634.62
11 62.60 12.00 50.10 735.16 633.28 101.88 735.58 634.70
12 62.60 12.00 50.20 735.20 633.29 101.91 735.62 634.65
13 62.80 12.10 50.30 735.25 633.47 101.78 735.71 634.81
14 69.40 12.00 57.00 735.19 633.57 101.62 735.80 634.78
15 72.60 12.10 60.10 735.15 633.67 101.48 735.84 634.80
16 72.50 12.10 60.00 735.10 633.62 101.48 735.80 634.87
17 72.40 12.10 59.90 735.02 633.57 101.45 735.76 634.73
18 71.00 12.20 58.40 735.03 633.44 101.59 735.74 634.81
19 68.50 12.20 56.00 735.02 633.32 101.70 735.73 634.64
20 68.30 12.00 55.90 734.99 633.42 101.57 735.72 634.79
21 68.30 12.00 55.90 735.02 633.53 101.49 735.71 634.75
22 68.50 12.10 56.00 735.03 633.54 101.49 735.71 634.66
23 68.60 12.10 56.00 735.00 633.46 101.54 735.70 634.85
24 68.50 12.10 56.00 735.00 633.51 101.49 735.70 634.78
AVG 65.87 12.07 53.40 735.03 633.33 101.70 735.65 634.65
MAX 72.60 12.20 60.10 735.25 633.67 102.06 735.84 634.87
MIN 62.30 12.00 49.80 734.92 632.95 101.45 735.53 634.33