US Army Corps of Engineers

Lower Granite Dam

Saturday May 30, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 80.80 12.10 68.30 735.48 634.45 101.03 736.28 635.78
2 80.80 12.20 68.20 735.48 634.68 100.80 736.26 635.77
3 80.80 12.20 68.20 735.44 634.40 101.04 736.23 635.70
4 80.70 12.10 68.10 735.39 634.59 100.80 736.20 635.70
5 80.60 12.20 68.00 735.33 634.46 100.87 736.17 635.72
6 80.60 12.20 68.00 735.31 634.45 100.86 736.12 635.71
7 80.50 12.10 68.00 735.23 634.56 100.67 736.04 635.69
8 80.30 12.10 67.70 735.16 634.52 100.64 736.02 635.73
9 80.60 12.10 68.00 735.13 634.49 100.64 735.95 635.72
10 80.60 12.20 68.00 735.08 634.47 100.61 735.88 635.78
11 80.50 12.20 67.90 735.02 634.33 100.69 735.82 635.78
12 80.30 12.20 67.70 734.97 634.43 100.54 735.77 635.88
13 75.10 12.20 62.60 734.99 634.34 100.65 735.74 635.57
14 74.30 12.10 61.70 734.96 634.31 100.65 735.73 635.65
15 74.30 12.20 61.70 734.97 634.36 100.61 735.72 635.68
16 74.20 12.10 61.70 734.99 634.33 100.66 735.71 635.46
17 74.20 12.10 61.70 734.99 634.31 100.68 735.71 635.59
18 75.90 12.20 61.60 734.98 634.40 100.58 735.70 635.72
19 73.80 12.30 61.10 735.06 634.13 100.93 735.70 635.48
20 71.20 12.20 58.60 735.04 634.30 100.74 735.70 635.52
21 71.10 12.10 58.60 735.07 634.38 100.69 735.71 635.41
22 71.30 12.20 58.70 735.13 634.24 100.89 735.75 635.51
23 71.40 12.20 58.80 735.16 634.20 100.96 735.78 635.45
24 71.40 12.10 58.90 735.20 634.20 101.00 735.82 635.53
AVG 76.89 12.16 64.24 735.15 634.39 100.76 735.90 635.65
MAX 80.80 12.30 68.30 735.48 634.68 101.04 736.28 635.88
MIN 71.10 12.10 58.60 734.96 634.13 100.54 735.70 635.41