US Army Corps of Engineers

Priest Rapids Dam

Saturday April 11, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 140.10 114.96 24.23 485.53 412.16 73.37
2 139.20 114.06 24.25 485.52 412.15 73.38
3 140.10 115.15 24.04 485.46 412.12 73.35
4 139.50 114.67 23.98 485.45 412.06 73.39
5 138.50 113.49 24.15 485.51 412.06 73.45
6 135.90 110.73 24.27 485.66 411.28 74.38
7 124.80 98.99 24.95 485.99 411.03 74.95
8 122.50 95.72 25.94 486.27 410.86 75.42
9 122.50 95.14 26.54 486.44 410.70 75.74
10 118.70 91.03 26.82 486.40 410.31 76.10
11 117.60 90.23 26.48 486.27 410.55 75.72
12 114.00 87.07 26.04 486.12 409.84 76.28
13 111.50 85.01 25.67 486.01 409.77 76.23
14 111.70 85.65 25.29 485.85 409.82 76.02
15 111.60 86.12 24.65 485.63 409.75 75.88
16 111.50 86.66 24.11 485.37 409.80 75.56
17 107.40 82.98 23.69 485.22 409.52 75.70
18 112.70 88.81 23.08 484.99 409.85 75.14
19 137.50 114.47 22.21 484.70 411.98 72.72
20 142.30 119.29 22.07 484.71 412.19 72.52
21 143.40 120.68 21.83 484.58 412.22 72.36
22 141.10 118.56 21.62 484.54 412.21 72.33
23 141.70 119.23 21.53 484.49 412.22 72.27
24 135.70 113.43 21.40 484.44 411.77 72.67
AVG 127.56 102.59 24.12 485.47 411.09 74.37
MAX 143.40 120.68 26.82 486.44 412.22 76.28
MIN 107.40 82.98 21.40 484.44 409.52 72.27
BUILDING STRONG®