US Army Corps of Engineers

Priest Rapids Dam

Saturday September 19, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 41.50 38.71 2.25 485.44 402.51 82.93
2 41.00 38.20 2.25 485.45 402.31 83.14
3 39.70 36.92 2.26 485.42 402.28 83.14
4 40.40 37.68 2.25 485.42 402.26 83.16
5 40.50 37.73 2.25 485.40 402.51 82.89
6 40.20 37.46 2.23 485.35 402.26 83.09
7 52.40 49.49 2.20 485.31 402.98 82.32
8 41.70 38.94 2.21 485.41 402.52 82.89
9 42.10 39.26 2.26 485.41 402.54 82.87
10 42.10 39.39 2.17 485.02 402.64 82.38
11 42.60 39.90 2.11 485.08 402.52 82.56
12 42.20 39.41 2.19 485.35 402.52 82.82
13 49.80 46.86 2.29 485.58 403.83 81.75
14 48.00 44.99 2.35 485.64 403.04 82.60
15 42.60 39.74 2.30 485.48 402.52 82.96
16 45.50 42.64 2.32 485.65 403.37 82.28
17 53.70 50.66 2.35 485.62 404.04 81.58
18 67.90 64.73 2.31 485.46 405.80 79.65
19 78.20 74.88 2.29 485.49 406.40 79.09
20 82.60 79.45 2.31 485.63 406.84 78.80
21 76.70 73.61 2.36 485.76 406.19 79.58
22 70.10 67.00 2.39 485.77 405.40 80.37
23 51.20 48.30 2.42 485.88 403.54 82.34
24 45.30 42.53 2.40 485.74 402.91 82.83
AVG 50.75 47.85 2.28 485.49 403.49 82.00
MAX 82.60 79.45 2.42 485.88 406.84 83.16
MIN 39.70 36.92 2.11 485.02 402.26 78.80
BUILDING STRONG®