Bonneville Dam
Tuesday February 4, 2025
Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | PH 1 Forebay Elevation | Tailwater Elevation | Average Head | Project Forebay Elevation | Stevenson Gage Elevation | Project Tailwater Elevation |
1 | 118.70 | 113.70 | 0.00 | 73.60 | 11.30 | 62.30 | 73.40 | 74.10 | 11.50 |
2 | 114.90 | 109.90 | 0.00 | 73.50 | 11.30 | 62.20 | 73.30 | 74.10 | 11.60 |
3 | 115.40 | 110.40 | 0.00 | 73.20 | 11.20 | 62.00 | 73.10 | 73.90 | 11.40 |
4 | 116.10 | 111.10 | 0.00 | 73.30 | 11.20 | 62.10 | 73.10 | 73.90 | 11.40 |
5 | 122.20 | 117.20 | 0.00 | 73.20 | 11.30 | 61.90 | 73.00 | 73.80 | 11.50 |
6 | 121.50 | 116.50 | 0.00 | 73.10 | 11.20 | 61.90 | 72.90 | 73.70 | 11.50 |
7 | 121.60 | 115.90 | 0.70 | 73.00 | 11.20 | 61.80 | 72.90 | 73.60 | 11.40 |
8 | 122.70 | 116.40 | 1.30 | 73.20 | 11.20 | 62.00 | 73.00 | 73.70 | 11.40 |
9 | 124.10 | 117.80 | 1.30 | 73.30 | 11.20 | 62.10 | 73.10 | 73.60 | 11.50 |
10 | 124.00 | 117.70 | 1.30 | 73.30 | 11.40 | 61.90 | 73.10 | 73.80 | 11.60 |
11 | 120.50 | 114.20 | 1.30 | 74.50 | 11.30 | 63.20 | 73.30 | 73.90 | 11.60 |
12 | 113.10 | 106.80 | 1.30 | 73.60 | 11.30 | 62.30 | 73.40 | 74.00 | 11.70 |
13 | 108.20 | 101.90 | 1.30 | 73.70 | 11.20 | 62.50 | 73.30 | 74.00 | 11.50 |
14 | 105.40 | 99.10 | 1.30 | 73.60 | 11.10 | 62.50 | 73.40 | 74.00 | 11.30 |
15 | 108.00 | 101.70 | 1.30 | 73.60 | 11.20 | 62.40 | 73.40 | 74.10 | 11.50 |
16 | 113.00 | 106.70 | 1.30 | 73.70 | 11.20 | 62.50 | 73.50 | 74.10 | 11.50 |
17 | 113.10 | 106.80 | 1.30 | 73.70 | 11.10 | 62.60 | 73.60 | 74.20 | 11.30 |
18 | 116.60 | 110.30 | 1.30 | 73.70 | 11.30 | 62.40 | 73.50 | 74.20 | 11.60 |
19 | 120.70 | 115.70 | 0.00 | 73.70 | 11.30 | 62.40 | 73.60 | 74.20 | 11.50 |
20 | 119.70 | 114.70 | 0.00 | 73.80 | 11.20 | 62.60 | 73.70 | 74.30 | 11.50 |
21 | 120.30 | 115.30 | 0.00 | 73.60 | 11.30 | 62.30 | 73.50 | 74.30 | 11.50 |
22 | 121.80 | 116.80 | 0.00 | 73.80 | 11.30 | 62.50 | 73.60 | 74.30 | 11.50 |
23 | 121.80 | 116.80 | 0.00 | 73.70 | 11.20 | 62.50 | 73.50 | 74.20 | 11.50 |
24 | 121.70 | 116.70 | 0.00 | 73.60 | 11.30 | 62.30 | 73.40 | 74.20 | 11.50 |
|
AVG | 117.71 | 112.09 | 0.63 | 73.54 | 11.24 | 62.30 | 73.32 | 74.01 | 11.49 |
|
MAX | 124.10 | 117.80 | 1.30 | 74.50 | 11.40 | 63.20 | 73.70 | 74.30 | 11.70 |
MIN | 105.40 | 99.10 | 0.00 | 73.00 | 11.10 | 61.80 | 72.90 | 73.60 | 11.30 |
|
Powerhouse 1 |
Powerhouse 2 |
Project |
Hour | Generation Flow kcfs | Forebay Elevation | Forebay Elevation | Generation Flow kcfs | Spillway Gates in Use | Miscellaneous Flow kcfs* |
1 | 39.40 | 73.6 | 73.4 | 74.30 | 0 | 5.0 |
2 | 38.10 | 73.5 | 73.3 | 71.80 | 0 | 5.0 |
3 | 38.60 | 73.2 | 73.1 | 71.80 | 0 | 5.0 |
4 | 39.20 | 73.3 | 73.1 | 71.90 | 0 | 5.0 |
5 | 35.00 | 73.2 | 73.0 | 82.20 | 0 | 5.0 |
6 | 33.90 | 73.1 | 72.9 | 82.60 | 0 | 5.0 |
7 | 33.70 | 73.0 | 72.9 | 82.20 | 1 | 5.0 |
8 | 34.20 | 73.2 | 73.0 | 82.20 | 1 | 5.0 |
9 | 35.10 | 73.3 | 73.1 | 82.70 | 1 | 5.0 |
10 | 35.20 | 73.3 | 73.1 | 82.50 | 1 | 5.0 |
11 | 33.30 | 74.5 | 73.3 | 80.90 | 1 | 5.0 |
12 | 36.30 | 73.6 | 73.4 | 70.50 | 1 | 5.0 |
13 | 32.20 | 73.7 | 73.3 | 69.70 | 1 | 5.0 |
14 | 38.50 | 73.6 | 73.4 | 60.60 | 1 | 5.0 |
15 | 39.80 | 73.6 | 73.4 | 61.90 | 1 | 5.0 |
16 | 40.60 | 73.7 | 73.5 | 66.10 | 1 | 5.0 |
17 | 40.70 | 73.7 | 73.6 | 66.10 | 1 | 5.0 |
18 | 40.60 | 73.7 | 73.5 | 69.70 | 1 | 5.0 |
19 | 39.90 | 73.7 | 73.6 | 75.80 | 0 | 5.0 |
20 | 39.80 | 73.8 | 73.7 | 74.90 | 0 | 5.0 |
21 | 39.60 | 73.6 | 73.5 | 75.70 | 0 | 5.0 |
22 | 39.60 | 73.8 | 73.6 | 77.20 | 0 | 5.0 |
23 | 40.10 | 73.7 | 73.5 | 76.70 | 0 | 5.0 |
24 | 40.10 | 73.6 | 73.4 | 76.60 | 0 | 5.0 |
|
AVG | 37.65 | 73.5 | 73.3 | 74.44 | 0 | 5.0 |
|
MAX | 40.70 | 74.5 | 73.7 | 82.70 | 1 | 5.0 |
MIN | 32.20 | 73.0 | 72.9 | 60.60 | 0 | 5.0 |
* Miscellaneous Flow includes fish ladders, PH1 sluiceway, navigation lock,
PH2 DSM, UMT, and PH2 corner collector (B2CC). When all routes are in
operation (March-August), total Misc Flow will be ~12.4 kcfs. Flow through
the B2CC is ~5 kcfs, so fluctuations of +/-5 kcfs at any time of year
indicate the B2CC is open/closed.