US Army Corps of Engineers

Priest Rapids Dam & Reservoir

June 2026

Day of MonthTotal Generation MWhAverage Generation MWStation Use MWhInflow kcfsTotal Outflow kcfsGeneration Flow kcfsSpill kcfsMidnight Reservoir ElevationAverage Forebay ElevationAverage Tailwater ElevationAverage Head feet
1 166.00 165.30 125.30 39.00 487.48 487.32 413.39 73.93
2 197.50 197.30 118.80 77.40 487.53 487.43 415.09 72.34
3 207.30 207.60 123.30 83.20 487.44 487.48 415.75 71.73
4 203.00 204.60 111.30 92.20 487.01 487.10 415.79 71.31
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
TOT           
AVG    193.45 193.70 119.67 72.95 487.37 487.33 415.00 72.33
MAX    207.30 207.60 125.30 92.20 487.53 487.48 415.79 73.93
MIN    166.00 165.30 111.30 39.00 487.01 487.10 413.39 71.31