US Army Corps of Engineers

John Day Dam

Sunday September 20, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 65.30 62.80 1.60 265.32 160.22 105.10
2 65.30 62.80 1.60 265.32 160.02 105.30
3 65.30 62.80 1.60 265.32 159.92 105.40
4 65.30 62.80 1.60 265.32 159.92 105.40
5 65.30 62.80 1.60 265.32 159.82 105.50
6 67.10 62.80 1.60 265.42 159.72 105.70
7 60.70 58.20 1.60 265.52 159.72 105.80
8 62.80 58.50 1.60 265.42 159.92 105.50
9 61.40 58.90 1.60 265.42 160.12 105.30
10 61.20 58.70 1.60 265.32 160.02 105.30
11 63.10 58.80 1.60 265.32 160.02 105.30
12 61.80 59.30 1.60 265.42 159.92 105.50
13 60.90 58.40 1.60 265.32 160.11 105.21
14 61.90 59.40 1.60 265.32 159.92 105.40
15 62.80 58.50 1.60 265.32 159.82 105.50
16 62.80 60.30 1.60 265.22 160.12 105.10
17 86.60 84.10 1.60 265.12 160.72 104.40
18 87.90 85.40 1.60 265.12 160.42 104.70
19 88.80 84.50 1.60 265.12 160.52 104.60
20 87.40 84.90 1.60 265.32 160.32 105.00
21 86.70 84.20 1.60 265.32 160.52 104.80
22 86.90 82.60 1.60 265.32 160.29 105.03
23 84.30 81.80 1.60 265.22 160.42 104.80
24 67.00 64.50 1.60 265.32 159.92 105.40
AVG 70.36 67.41 1.60 265.31 160.10 105.21
MAX 88.80 85.40 1.60 265.52 160.72 105.80
MIN 60.70 58.20 1.60 265.12 159.72 104.40
BUILDING STRONG®