US Army Corps of Engineers

Bonneville Dam

Sunday May 28, 2023

New Date:

HourTotal Outflow kcfsGeneration Flow kcfsSpill kcfsPH 1 Forebay ElevationTailwater ElevationAverage HeadProject Forebay ElevationStevenson Gage ElevationProject Tailwater Elevation
1 289.30 126.40150.50 75.00 22.20 52.80 75.10 77.10 21.90
2 289.10 126.10150.60 74.80 22.10 52.70 75.10 77.10 21.90
3 293.90 131.20150.30 74.90 22.40 52.50 74.90 76.90 22.00
4 293.80 131.20150.20 74.80 22.30 52.50 74.80 76.80 22.00
5 293.80 131.40150.00 74.70 22.30 52.40 74.70 76.70 22.00
6 76.70
7 76.50
8 76.40
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AVG 291.98 129.26150.32 74.84 22.26 52.58 74.92 76.77 21.96
MAX 293.90 131.40150.60 75.00 22.40 52.80 75.10 77.10 22.00
MIN 289.10 126.10150.00 74.70 22.10 52.40 74.70 76.40 21.90

  Powerhouse 1 Powerhouse 2 Project
HourGeneration Flow kcfsForebay ElevationForebay ElevationGeneration Flow kcfsSpillway Gates in UseMiscellaneous Flow kcfs
1 31.60 75.0 75.1 94.80 18 12.4
2 31.60 74.8 75.1 94.50 18 12.4
3 36.00 74.9 74.9 95.20 18 12.4
4 36.10 74.8 74.8 95.10 18 12.4
5 36.50 74.7 74.7 94.90 18 12.4
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AVG 34.36 74.8 74.9 94.90 18 12.4
MAX 36.50 75.0 75.1 95.20 18 12.4
MIN 31.60 74.7 74.7 94.50 18 12.4
BUILDING STRONG®