US Army Corps of Engineers

Priest Rapids Dam

Thursday May 21, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 155.90 128.85 26.16 486.16 412.89 73.27
2 156.50 129.84 25.71 486.03 412.97 73.06
3 150.40 124.00 25.52 486.03 412.54 73.49
4 152.20 125.60 25.70 486.11 412.71 73.40
5 157.70 130.82 25.88 486.14 413.09 73.05
6 155.00 128.12 25.98 486.24 412.74 73.50
7 149.20 121.90 26.38 486.37 412.40 73.98
8 148.50 120.95 26.57 486.36 412.40 73.96
9 146.70 119.09 26.62 486.39 412.30 74.09
10 146.50 118.70 26.83 486.47 412.30 74.17
11 147.30 119.22 27.09 486.57 412.27 74.30
12 150.40 121.71 27.64 486.79 412.66 74.13
13 157.40 128.35 28.00 486.81 413.20 73.61
14 167.00 138.25 27.68 486.61 413.63 72.98
15 166.90 138.90 26.95 486.38 413.60 72.78
16 167.00 139.71 26.27 486.15 413.77 72.39
17 169.30 142.68 25.54 485.93 413.99 71.94
18 170.20 144.39 24.83 485.62 414.06 71.56
19 165.40 140.28 24.15 485.40 413.83 71.57
20 160.50 135.78 23.72 485.36 412.96 72.40
21 147.20 122.27 23.97 485.56 412.50 73.06
22 147.10 121.84 24.38 485.61 412.49 73.12
23 149.50 124.19 24.41 485.64 412.54 73.10
24 150.70 125.13 24.63 485.74 412.62 73.12
AVG 155.60 128.77 25.86 486.10 412.94 73.17
MAX 170.20 144.39 28.00 486.81 414.06 74.30
MIN 146.50 118.70 23.72 485.36 412.27 71.56