US Army Corps of Engineers

Lower Granite Dam

Wednesday April 8, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 62.90 12.00 50.40 735.14 633.16 101.98 735.52 634.49
2 62.90 12.00 50.40 735.12 633.22 101.90 735.53 634.56
3 62.80 12.10 50.40 735.14 633.22 101.92 735.54 634.61
4 62.80 12.00 50.40 735.17 633.23 101.94 735.56 634.61
5 64.60 12.10 50.40 735.20 633.24 101.96 735.58 634.58
6 65.30 12.10 52.80 735.14 633.59 101.55 735.60 634.59
7 65.40 12.10 52.90 735.17 633.44 101.73 735.58 634.68
8 65.40 12.10 52.90 735.14 633.25 101.89 735.57 634.64
9 65.30 12.00 52.90 735.13 633.35 101.78 735.57 634.63
10 65.20 12.00 52.80 735.14 633.34 101.80 735.56 634.72
11 65.30 12.00 52.90 735.15 633.40 101.75 735.56 634.70
12 65.30 12.00 52.90 735.16 633.31 101.85 735.57 634.81
13 65.30 12.10 52.90 735.16 633.47 101.69 735.58 634.71
14 65.30 12.00 52.90 735.16 633.35 101.81 735.61 634.83
15 62.20 12.00 49.80 735.20 633.30 101.90 735.61 634.61
16 64.00 12.10 49.80 735.16 633.48 101.68 735.64 634.75
17 62.30 12.10 49.80 735.21 633.36 101.85 735.70 634.73
18 64.10 12.10 49.90 735.24 633.57 101.67 735.70 634.76
19 62.50 12.10 49.90 735.24 633.33 101.91 735.73 634.69
20 62.30 12.00 49.90 735.29 633.33 101.96 735.80 634.74
21 62.40 12.00 50.00 735.33 633.51 101.82 735.81 634.87
22 62.50 12.00 50.00 735.37 633.43 101.94 735.81 634.76
23 62.60 12.00 50.10 735.40 633.58 101.82 735.82 634.82
24 62.60 12.00 50.20 735.44 633.53 101.91 735.83 634.83
AVG 63.80 12.04 51.14 735.21 633.37 101.83 735.64 634.70
MAX 65.40 12.10 52.90 735.44 633.59 101.98 735.83 634.87
MIN 62.20 12.00 49.80 735.12 633.16 101.55 735.52 634.49