US Army Corps of Engineers

Priest Rapids Dam

Friday May 22, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 149.70 123.91 24.89 485.86 412.41 73.45
2 147.90 121.88 25.11 485.89 412.35 73.54
3 146.60 120.45 25.21 485.90 412.30 73.61
4 146.60 120.61 25.13 485.84 412.31 73.53
5 147.00 121.09 24.96 485.81 412.30 73.51
6 147.30 121.58 24.77 485.73 412.33 73.40
7 147.50 121.76 24.80 485.77 412.30 73.47
8 147.70 121.97 24.74 485.70 412.29 73.41
9 142.40 116.82 24.65 485.64 411.93 73.71
10 133.20 107.89 24.44 485.59 411.27 74.31
11 131.20 105.89 24.46 485.67 411.15 74.52
12 131.10 105.54 24.70 485.80 411.13 74.66
13 130.90 105.09 24.97 485.84 411.05 74.79
14 131.00 105.22 24.91 485.77 411.09 74.67
15 131.20 105.52 24.81 485.77 411.07 74.70
16 131.30 105.61 24.85 485.80 411.10 74.69
17 143.30 117.57 24.84 485.75 412.28 73.47
18 155.00 129.38 24.70 485.69 412.91 72.78
19 155.60 130.03 24.61 485.69 412.88 72.81
20 155.70 130.10 24.63 485.75 412.64 73.11
21 139.70 113.69 25.12 486.01 411.92 74.09
22 155.10 128.41 25.74 486.15 413.27 72.88
23 162.60 135.75 25.87 486.12 413.04 73.08
24 158.70 132.02 25.70 486.10 412.71 73.39
AVG 144.51 118.66 24.94 485.82 412.08 73.73
MAX 162.60 135.75 25.87 486.15 413.27 74.79
MIN 130.90 105.09 24.44 485.59 411.05 72.78
BUILDING STRONG®