US Army Corps of Engineers

Priest Rapids Dam

Thursday September 17, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 38.70 36.03 2.14 485.12 402.12 83.00
2 38.30 35.67 2.13 485.04 402.05 82.99
3 38.20 35.63 2.09 484.94 402.05 82.89
4 38.10 35.54 2.08 484.95 402.04 82.91
5 38.30 35.80 2.06 484.84 402.13 82.71
6 40.80 38.30 2.03 484.90 402.23 82.68
7 51.20 48.41 2.10 485.18 403.53 81.65
8 50.40 47.57 2.21 485.42 403.33 82.09
9 42.20 39.39 2.27 485.44 402.79 82.65
10 48.60 45.71 2.22 485.21 403.41 81.80
11 48.90 46.07 2.19 485.22 403.36 81.86
12 42.80 40.02 2.20 485.31 402.40 82.91
13 45.20 42.44 2.21 485.22 403.09 82.13
14 47.00 44.19 2.22 485.34 403.35 81.99
15 65.90 62.89 2.22 485.27 405.85 79.42
16 75.00 71.85 2.22 485.27 406.90 78.37
17 106.90 103.54 2.14 485.05 409.16 75.88
18 98.00 94.78 2.12 484.94 408.61 76.33
19 101.40 98.33 2.00 484.60 407.94 76.66
20 79.70 76.97 1.96 484.69 406.22 78.46
21 64.00 61.42 2.00 484.84 404.88 79.96
22 53.50 50.97 2.09 485.11 403.78 81.33
23 41.40 38.77 2.18 485.30 402.65 82.65
24 41.30 38.61 2.19 485.29 402.39 82.90
AVG 55.66 52.87 2.14 485.10 404.01 81.09
MAX 106.90 103.54 2.27 485.44 409.16 83.00
MIN 38.10 35.54 1.96 484.60 402.04 75.88
BUILDING STRONG®