US Army Corps of Engineers

Lower Granite Dam

Sunday May 31, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 71.50 12.10 59.00 735.22 634.14 101.08 735.85 635.44
2 71.50 12.10 59.00 735.22 634.21 101.01 735.88 635.39
3 71.60 12.10 59.10 735.24 634.17 101.07 735.90 635.46
4 71.60 12.10 59.10 735.24 634.17 101.07 735.92 635.45
5 71.60 12.10 59.10 735.25 634.13 101.12 735.94 635.37
6 71.60 12.10 59.10 735.25 634.14 101.11 735.95 635.35
7 71.60 12.10 59.10 735.25 634.27 100.98 735.95 635.32
8 71.60 12.10 59.10 735.25 634.01 101.24 735.95 635.41
9 71.60 12.10 59.10 735.20 634.24 100.96 735.96 635.45
10 71.60 12.10 59.10 735.24 634.19 101.05 735.97 635.48
11 71.50 12.10 59.00 735.28 634.19 101.09 735.96 635.40
12 71.50 12.10 58.90 735.26 634.14 101.12 736.01 635.38
13 71.60 12.20 59.10 735.32 634.03 101.29 736.03 635.38
14 71.90 12.20 59.30 735.33 634.25 101.08 736.04 635.51
15 71.90 12.10 59.40 735.35 634.19 101.16 736.06 635.34
16 71.70 12.10 59.20 735.37 634.05 101.32 736.04 635.41
17 71.50 12.20 58.90 735.37 634.19 101.18 736.04 635.30
18 71.40 12.10 58.90 735.36 633.93 101.43 736.04 635.48
19 71.50 12.20 58.90 735.36 634.07 101.29 736.03 635.42
20 71.30 12.10 58.90 735.35 634.04 101.31 736.01 635.42
21 71.30 12.10 58.80 735.34 634.01 101.33 736.00 635.37
22 71.30 12.10 58.80 735.32 634.08 101.24 736.00 635.39
23 71.10 12.00 58.70 735.33 634.06 101.27 735.99 635.31
24 71.00 12.00 58.60 735.31 634.12 101.19 735.97 635.22
AVG 71.51 12.11 59.01 735.29 634.13 101.17 735.98 635.39
MAX 71.90 12.20 59.40 735.37 634.27 101.43 736.06 635.51
MIN 71.00 12.00 58.60 735.20 633.93 100.96 735.85 635.22