US Army Corps of Engineers

John Day Dam

Wednesday May 20, 2026

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsForebay ElevationTailwater ElevationAverage Head
1 225.00 61.70162.40 265.32 160.72 104.60
2 226.20 63.10162.20 265.22 160.92 104.30
3 225.00 62.20161.90 265.22 161.12 104.10
4 224.90 62.00161.90 265.22 161.12 104.10
5 224.80 62.00161.90 265.22 161.42 103.80
6 224.40 61.60161.90 265.22 161.62 103.60
7 223.40 60.50161.90 265.22 161.22 104.00
8 223.10 60.20161.90 265.22 161.32 103.90
9 224.50 61.60161.90 265.22 161.32 103.90
10 223.40 60.60161.90 265.12 161.52 103.60
11 224.80 60.30161.90 265.12 161.62 103.50
12 209.70 60.30146.80 265.22 161.73 103.49
13 201.60 61.60139.00 265.22 161.82 103.40
14 201.50 60.00138.80 265.22 161.52 103.70
15 199.80 59.80139.00 265.22 161.43 103.79
16 200.50 58.70139.00 265.22 161.42 103.80
17 204.40 62.60139.10 265.22 161.52 103.70
18 201.40 61.40139.10 265.32 161.52 103.80
19 200.30 60.20139.10 265.32 161.42 103.90
20 202.50 60.70139.10 265.32 161.21 104.11
21 201.50 61.50139.10 265.32 161.02 104.30
22 203.20 61.30139.10 265.32 160.72 104.60
23 203.20 61.40139.10 265.32 160.42 104.90
24 201.20 61.10139.10 265.32 159.56 105.76
AVG 212.51 61.10149.88 265.24 161.22 104.03
MAX 226.20 63.10162.40 265.32 161.82 105.76
MIN 199.80 58.70138.80 265.12 159.56 103.40