US Army Corps of Engineers

Lower Granite Dam

Thursday June 4, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 55.10 12.10 42.60 735.43 633.71 101.72 736.02 634.91
2 55.00 12.00 42.60 735.40 633.68 101.72 735.97 634.97
3 54.90 12.00 42.50 735.34 633.70 101.64 735.97 634.94
4 54.80 12.00 42.40 735.33 633.74 101.59 735.93 634.86
5 52.50 12.00 40.10 735.34 633.81 101.53 735.88 634.91
6 52.00 12.00 39.60 735.31 633.86 101.45 735.88 634.92
7 52.00 12.10 39.50 735.32 633.93 101.39 735.90 634.98
8 51.90 12.00 39.50 735.34 633.91 101.43 735.88 635.00
9 51.90 12.00 39.50 735.31 633.84 101.47 735.89 634.96
10 51.90 12.10 39.50 735.31 633.88 101.43 735.92 634.97
11 52.00 12.10 39.50 735.33 633.71 101.62 735.94 634.92
12 52.00 12.10 39.50 735.29 633.70 101.59 735.92 634.89
13 53.90 12.10 39.60 735.33 633.55 101.78 735.91 634.74
14 52.20 12.10 39.70 735.34 633.70 101.64 735.88 634.81
15 52.20 12.20 39.70 735.31 633.69 101.62 735.89 634.87
16 52.20 12.10 39.70 735.33 633.69 101.64 735.87 634.86
17 52.10 12.10 39.70 735.31 633.70 101.61 735.84 634.87
18 52.10 12.10 39.60 735.27 633.68 101.59 735.82 634.89
19 52.20 12.20 39.60 735.26 633.64 101.62 735.81 634.95
20 52.10 12.10 39.60 735.23 633.62 101.61 735.80 634.81
21 52.10 12.10 39.60 735.24 633.67 101.57 735.77 634.80
22 52.00 12.20 39.40 735.21 633.52 101.69 735.75 634.83
23 51.90 12.10 39.40 735.18 633.59 101.59 735.75 634.83
24 51.60 12.10 39.10 735.19 633.55 101.64 735.73 634.80
AVG 52.61 12.08 40.06 735.30 633.71 101.59 735.87 634.89
MAX 55.10 12.20 42.60 735.43 633.93 101.78 736.02 635.00
MIN 51.60 12.00 39.10 735.18 633.52 101.39 735.73 634.74
BUILDING STRONG®