US Army Corps of Engineers

Priest Rapids Dam

Wednesday September 16, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 38.00 35.38 2.18 485.78 402.07 83.71
2 40.10 37.42 2.17 485.62 402.41 83.21
3 41.00 38.38 2.11 485.49 402.31 83.18
4 39.30 36.76 2.08 485.38 402.09 83.29
5 38.60 36.12 2.04 485.29 402.09 83.20
6 39.60 37.06 2.01 485.21 402.54 82.67
7 51.60 48.94 1.96 485.10 403.52 81.58
8 57.80 55.38 1.62 485.24 403.98 81.25
9 44.80 44.21 0.00 485.43 402.57 82.86
10 41.00 40.48 0.00 485.49 402.42 83.07
11 42.00 41.43 0.00 485.42 402.65 82.78
12 43.10 42.53 0.00 485.18 402.58 82.61
13 41.00 40.44 0.00 485.12 402.41 82.71
14 41.20 40.67 0.00 485.01 402.45 82.56
15 41.30 40.76 0.00 484.80 402.44 82.37
16 42.30 41.36 0.45 484.85 402.92 81.93
17 45.10 42.53 2.04 484.89 403.16 81.73
18 69.80 66.84 2.07 484.83 407.49 77.34
19 106.10 102.91 2.02 484.75 409.08 75.68
20 101.40 98.44 2.06 484.99 408.47 76.52
21 103.10 100.08 2.07 484.92 408.34 76.58
22 83.50 80.61 2.10 485.06 406.35 78.72
23 50.60 47.93 2.15 485.25 402.73 82.52
24 38.40 35.72 2.17 485.16 402.17 82.99
AVG 53.36 51.35 1.39 485.18 403.72 81.46
MAX 106.10 102.91 2.18 485.78 409.08 83.71
MIN 38.00 35.38 0.00 484.75 402.07 75.68
BUILDING STRONG®