US Army Corps of Engineers

Priest Rapids Dam

Friday September 18, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 40.10 37.35 2.19 485.24 402.32 82.93
2 39.40 36.77 2.15 485.11 402.24 82.87
3 39.40 36.82 2.11 484.98 402.20 82.77
4 39.10 36.47 2.08 484.99 402.21 82.78
5 39.10 36.49 2.08 484.94 402.18 82.76
6 39.50 36.89 2.05 484.88 402.41 82.47
7 54.50 51.78 2.03 484.90 403.99 80.91
8 45.10 42.35 2.13 485.27 402.84 82.43
9 45.40 42.59 2.17 485.21 402.94 82.27
10 43.70 40.90 2.18 485.26 402.76 82.51
11 44.20 41.40 2.20 485.27 402.89 82.38
12 44.60 41.78 2.20 485.26 402.92 82.34
13 49.70 46.87 2.20 485.20 403.86 81.34
14 52.40 49.49 2.17 485.15 403.61 81.54
15 51.90 49.04 2.16 485.14 403.61 81.53
16 54.80 51.91 2.18 485.21 404.17 81.04
17 72.10 69.14 2.17 485.11 406.66 78.44
18 87.90 85.02 2.13 485.03 407.85 77.18
19 93.80 90.82 2.10 485.00 407.10 77.90
20 76.60 73.76 2.12 485.08 406.26 78.81
21 78.60 75.71 2.10 485.02 406.42 78.60
22 71.80 68.97 2.15 485.21 405.63 79.58
23 46.30 43.51 2.22 485.46 402.76 82.70
24 42.00 39.15 2.23 485.36 402.51 82.85
AVG 53.83 51.04 2.15 485.14 403.85 81.29
MAX 93.80 90.82 2.23 485.46 407.85 82.93
MIN 39.10 36.47 2.03 484.88 402.18 77.18