Bonneville Dam
Sunday May 15, 2022
| 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 | 252.30 | 91.00 | 148.90 | 75.40 | 20.60 | 54.80 | 75.20 | 76.70 | 20.60 |
| 2 | 251.50 | 90.30 | 148.80 | 75.30 | 20.60 | 54.70 | 75.10 | 76.60 | 20.60 |
| 3 | 251.60 | 90.60 | 148.60 | 75.20 | 20.60 | 54.60 | 75.00 | 76.60 | 20.50 |
| 4 | 251.00 | 89.90 | 148.70 | 75.30 | 20.50 | 54.80 | 75.00 | 76.00 | 20.40 |
| 5 | 251.20 | 90.10 | 148.70 | 75.20 | 20.50 | 54.70 | 75.00 | 76.50 | 20.40 |
| 6 | 251.40 | 90.40 | 148.60 | 75.20 | 20.50 | 54.70 | 75.00 | 76.50 | 20.40 |
| 7 | 250.80 | 89.70 | 148.70 | 75.20 | 20.50 | 54.70 | 74.90 | 76.50 | 20.50 |
| 8 | 250.40 | 89.30 | 148.70 | 75.10 | 20.60 | 54.50 | 74.90 | 76.40 | 20.40 |
| 9 | 251.10 | 90.00 | 148.70 | 75.20 | 20.60 | 54.60 | 74.90 | 76.40 | 20.50 |
| 10 | 251.50 | 90.30 | 148.80 | 75.20 | 20.60 | 54.60 | 75.00 | 76.50 | 20.60 |
| 11 | 252.30 | 91.00 | 148.90 | 75.30 | 20.60 | 54.70 | 75.10 | 76.50 | 20.60 |
| 12 | 252.40 | 91.00 | 149.00 | 75.20 | 20.70 | 54.50 | 75.00 | 76.50 | 20.60 |
| 13 | 252.40 | 91.00 | 149.00 | 75.20 | 20.70 | 54.50 | 75.00 | 76.50 | 20.60 |
| 14 | 252.40 | 91.00 | 149.00 | 75.20 | 20.60 | 54.60 | 75.00 | 76.50 | 20.60 |
| 15 | 251.70 | 90.40 | 148.90 | 75.20 | 20.60 | 54.60 | 75.00 | 76.50 | 20.50 |
| 16 | 261.10 | 99.90 | 148.80 | 75.00 | 21.10 | 53.90 | 74.90 | 76.50 | 20.90 |
| 17 | 261.90 | 100.70 | 148.80 | 75.00 | 21.00 | 54.00 | 74.80 | 76.50 | 20.90 |
| 18 | 262.00 | 100.80 | 148.80 | 74.70 | 21.40 | 53.30 | 74.70 | 76.50 | 21.10 |
| 19 | 274.50 | 113.40 | 148.70 | 74.60 | 21.70 | 52.90 | 74.50 | 76.50 | 21.40 |
| 20 | 281.10 | 120.10 | 148.60 | 74.60 | 21.80 | 52.80 | 74.40 | 76.20 | 21.60 |
| 21 | 282.40 | 121.30 | 148.70 | 74.70 | 22.00 | 52.70 | 74.50 | 76.30 | 21.70 |
| 22 | 281.30 | 119.90 | 149.00 | 75.00 | 21.60 | 53.40 | 74.90 | 76.40 | 21.40 |
| 23 | 259.30 | 97.80 | 149.10 | 75.20 | 21.00 | 54.20 | 75.00 | 76.50 | 21.10 |
| 24 | 238.20 | 76.80 | 149.00 | 75.30 | 20.30 | 55.00 | 75.10 | 76.50 | 20.30 |
|
| AVG | 257.32 | 96.11 | 148.81 | 75.10 | 20.86 | 54.24 | 74.91 | 76.46 | 20.76 |
|
| MAX | 282.40 | 121.30 | 149.10 | 75.40 | 22.00 | 55.00 | 75.20 | 76.70 | 21.70 |
| MIN | 238.20 | 76.80 | 148.60 | 74.60 | 20.30 | 52.70 | 74.40 | 76.00 | 20.30 |
| |
Powerhouse 1 |
Powerhouse 2 |
Project |
| Hour | Generation Flow kcfs | Forebay Elevation | Forebay Elevation | Generation Flow kcfs | Spillway Gates in Use | Miscellaneous Flow kcfs* |
|---|
| 1 | 9.40 | 75.4 | 75.2 | 81.60 | 18 | 12.4 |
| 2 | 8.70 | 75.3 | 75.1 | 81.60 | 18 | 12.4 |
| 3 | 8.70 | 75.2 | 75.0 | 81.90 | 18 | 12.4 |
| 4 | 8.60 | 75.3 | 75.0 | 81.30 | 18 | 12.4 |
| 5 | 8.70 | 75.2 | 75.0 | 81.40 | 18 | 12.4 |
| 6 | 8.70 | 75.2 | 75.0 | 81.70 | 18 | 12.4 |
| 7 | 8.60 | 75.2 | 74.9 | 81.10 | 18 | 12.4 |
| 8 | 8.60 | 75.1 | 74.9 | 80.70 | 18 | 12.4 |
| 9 | 8.60 | 75.2 | 74.9 | 81.40 | 18 | 12.4 |
| 10 | 8.60 | 75.2 | 75.0 | 81.70 | 18 | 12.4 |
| 11 | 8.70 | 75.3 | 75.1 | 82.30 | 18 | 12.4 |
| 12 | 8.70 | 75.2 | 75.0 | 82.30 | 18 | 12.4 |
| 13 | 8.70 | 75.2 | 75.0 | 82.30 | 18 | 12.4 |
| 14 | 8.70 | 75.2 | 75.0 | 82.30 | 18 | 12.4 |
| 15 | 8.80 | 75.2 | 75.0 | 81.60 | 18 | 12.4 |
| 16 | 9.90 | 75.0 | 74.9 | 90.00 | 18 | 12.4 |
| 17 | 10.60 | 75.0 | 74.8 | 90.10 | 18 | 12.4 |
| 18 | 10.50 | 74.7 | 74.7 | 90.30 | 18 | 12.4 |
| 19 | 27.40 | 74.6 | 74.5 | 86.00 | 18 | 12.4 |
| 20 | 30.20 | 74.6 | 74.4 | 89.90 | 18 | 12.4 |
| 21 | 30.50 | 74.7 | 74.5 | 90.80 | 18 | 12.4 |
| 22 | 29.70 | 75.0 | 74.9 | 90.20 | 18 | 12.4 |
| 23 | 15.30 | 75.2 | 75.0 | 82.50 | 18 | 12.4 |
| 24 | 0.90 | 75.3 | 75.1 | 75.90 | 18 | 12.4 |
|
| AVG | 12.33 | 75.1 | 74.9 | 83.79 | 18 | 12.4 |
|
| MAX | 30.50 | 75.4 | 75.2 | 90.80 | 18 | 12.4 |
| MIN | 0.90 | 74.6 | 74.4 | 75.90 | 18 | 12.4 |
* 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.