US Army Corps of Engineers

John Day Dam

Saturday September 19, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 75.10 72.60 1.60 265.22 160.42 104.80
2 74.90 72.40 1.60 265.22 160.42 104.80
3 75.20 72.70 1.60 265.22 160.62 104.60
4 75.50 73.10 1.60 265.12 160.52 104.60
5 78.10 73.80 1.60 265.22 160.43 104.79
6 75.70 73.20 1.60 265.22 160.32 104.90
7 73.10 70.60 1.60 265.22 160.42 104.80
8 75.60 73.10 1.60 265.32 160.62 104.70
9 63.70 59.40 1.60 265.32 160.22 105.10
10 61.70 59.20 1.60 265.32 160.62 104.70
11 63.60 59.30 1.60 265.42 160.42 105.00
12 61.80 59.30 1.60 265.32 160.42 104.90
13 61.50 59.00 1.60 265.22 160.22 105.00
14 61.30 58.80 1.60 265.22 160.42 104.80
15 60.40 57.90 1.60 265.32 160.22 105.10
16 60.20 57.70 1.60 265.32 160.42 104.90
17 62.00 59.50 1.60 265.32 160.52 104.80
18 77.00 74.50 1.60 265.22 160.36 104.86
19 76.10 73.60 1.60 265.22 160.52 104.70
20 76.00 73.50 1.60 265.32 160.32 105.00
21 78.90 74.60 1.60 265.32 160.32 105.00
22 77.10 74.60 1.60 265.32 160.32 105.00
23 75.70 73.20 1.60 265.32 160.34 104.98
24 66.00 63.50 1.60 265.32 160.22 105.10
AVG 70.26 67.46 1.60 265.27 160.40 104.87
MAX 78.90 74.60 1.60 265.42 160.62 105.10
MIN 60.20 57.70 1.60 265.12 160.22 104.60
BUILDING STRONG®