US Army Corps of Engineers

Lower Granite Dam

Saturday August 30, 2025

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage HeadLWSI Gage ElevationLWGW NavLock Elevation
1 20.30 13.40 6.50 733.96 635.39 98.57 733.95 636.14
2 20.20 13.30 6.60 733.99 635.34 98.65 733.96 636.39
3 20.20 13.20 6.60 733.97 635.48 98.49 733.97 636.51
4 20.20 13.20 6.60 734.06 635.30 98.76 733.98 636.34
5 20.30 13.20 6.70 734.08 635.40 98.68 733.99 636.42
6 20.40 13.30 6.70 734.10 635.49 98.61 734.01 636.48
7 23.70 16.60 6.70 734.10 635.54 98.56 734.02 636.49
8 24.00 16.90 6.70 734.17 635.55 98.62 734.04 636.38
9 24.10 17.00 6.80 734.17 635.65 98.52 734.05 636.49
10 24.10 17.00 6.70 734.18 635.60 98.58 734.06 636.49
11 24.20 17.00 6.80 734.20 635.62 98.58 734.07 636.47
12 24.20 17.00 6.80 734.26 635.64 98.62 734.09 636.51
13 26.00 17.00 6.80 734.26 635.73 98.53 734.11 636.53
14 24.20 16.90 6.90 734.30 635.65 98.65 734.13 636.56
15 24.20 17.00 6.90 734.30 635.73 98.57 734.15 636.64
16 24.30 17.10 6.90 734.28 635.74 98.54 734.16 636.61
17 26.20 17.20 6.90 734.30 635.92 98.38 734.18 637.13
18 32.10 24.80 6.80 734.18 636.15 98.03 734.19 637.04
19 33.70 26.60 6.70 734.09 636.02 98.07 734.19 636.87
20 35.10 26.40 6.60 734.03 636.17 97.86 734.18 636.94
21 32.90 26.00 6.50 733.88 636.20 97.68 734.17 636.73
22 20.30 13.40 6.50 733.94 635.73 98.21 734.14 636.79
23 19.80 12.90 6.50 733.94 636.05 97.89 734.12 637.24
24 19.80 12.90 6.50 733.92 635.84 98.08 734.11 636.69
AVG 24.35 17.05 6.70 734.11 635.71 98.41 734.08 636.62
MAX 35.10 26.60 6.90 734.30 636.20 98.76 734.19 637.24
MIN 19.80 12.90 6.50 733.88 635.30 97.68 733.95 636.14