US Army Corps of Engineers

John Day Dam

Monday September 21, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 65.20 62.70 1.60 265.32 160.32 105.00
2 65.30 62.90 1.60 265.32 159.92 105.40
3 65.30 62.80 1.60 265.32 160.42 104.90
4 65.60 63.10 1.60 265.22 160.02 105.20
5 73.40 70.90 1.60 265.22 160.02 105.20
6 73.80 71.30 1.60 265.32 159.82 105.50
7 64.80 62.30 1.60 265.42 159.62 105.80
8 62.50 58.20 1.60 265.52 159.92 105.60
9 60.50 58.00 1.60 265.62 159.82 105.80
10 62.20 57.90 1.60 265.52 159.82 105.70
11 61.50 59.00 1.60 265.32 159.52 105.80
12 63.10 58.80 1.60 265.32 159.92 105.40
13 61.60 59.10 1.60 265.42 159.82 105.60
14 63.20 60.70 1.60 265.42 159.82 105.60
15 62.40 59.90 1.60 265.42 159.62 105.80
16 62.70 60.20 1.60 265.22 160.12 105.10
17 88.50 84.20 1.60 265.22 160.42 104.80
18 88.40 85.90 1.60 265.12 159.92 105.20
19 86.60 84.10 1.60 265.22 160.32 104.90
20 85.00 82.50 1.60 265.42 160.12 105.30
21 86.30 82.00 1.60 265.42 160.42 105.00
22 67.60 65.10 1.60 265.32 159.62 105.70
23 67.40 64.90 1.60 265.32 160.02 105.30
24 66.70 64.20 1.60 265.32 159.72 105.60
AVG 69.57 66.70 1.60 265.34 159.96 105.38
MAX 88.50 85.90 1.60 265.62 160.42 105.80
MIN 60.50 57.90 1.60 265.12 159.52 104.80
BUILDING STRONG®