US Army Corps of Engineers

Lower Granite Dam

Wednesday May 6, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 77.30 12.00 64.90 735.15 633.63 101.52 735.85 635.08
2 77.20 12.00 64.90 735.16 633.55 101.61 735.85 635.01
3 77.30 12.00 64.90 735.14 633.63 101.51 735.83 635.05
4 77.20 12.00 64.80 735.13 633.64 101.49 735.82 635.01
5 77.30 12.00 64.80 735.10 633.67 101.43 735.80 634.90
6 77.30 12.10 64.80 735.08 633.67 101.41 735.79 634.92
7 81.90 12.00 69.50 735.01 633.85 101.16 735.78 635.22
8 82.50 12.00 70.10 734.98 633.93 101.05 735.77 635.27
9 82.50 12.00 70.10 734.96 633.89 101.07 735.74 635.22
10 82.40 12.00 70.00 734.93 634.09 100.84 735.73 635.28
11 82.40 12.10 69.90 734.90 634.14 100.76 735.72 635.38
12 82.40 12.10 69.90 734.87 634.23 100.64 735.71 635.53
13 82.20 12.00 69.80 734.82 634.23 100.59 735.70 635.57
14 82.10 12.10 69.60 734.77 634.17 100.60 735.69 635.43
15 82.00 12.00 69.60 734.64 634.09 100.55 735.68 635.43
16 82.40 12.10 69.90 734.70 634.30 100.40 735.67 635.53
17 82.50 12.10 70.00 734.67 634.09 100.58 735.66 635.40
18 84.20 12.20 69.90 734.68 634.01 100.67 735.65 635.56
19 78.10 12.20 65.40 734.78 633.80 100.98 735.64 635.08
20 75.60 12.10 63.00 734.78 633.90 100.88 735.62 635.18
21 75.60 12.20 63.10 734.85 634.01 100.84 735.62 635.21
22 75.70 12.10 63.20 734.92 633.81 101.11 735.63 635.04
23 75.80 12.10 63.30 734.94 633.79 101.15 735.64 635.20
24 75.90 12.10 63.40 734.96 633.98 100.98 735.66 635.31
AVG 79.57 12.07 67.03 734.91 633.92 100.99 735.72 635.24
MAX 84.20 12.20 70.10 735.16 634.30 101.61 735.85 635.57
MIN 75.60 12.00 63.00 734.64 633.55 100.40 735.62 634.90