Bonneville Dam
Wednesday September 11, 2024
| 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 | 112.90 | 105.50 | 0.00 | 75.60 | 10.50 | 65.10 | 75.30 | 75.90 | 10.70 |
| 2 | 97.80 | 90.40 | 0.00 | 75.50 | 9.70 | 65.80 | 75.30 | 75.80 | 9.80 |
| 3 | 87.00 | 79.60 | 0.00 | 75.50 | 9.00 | 66.50 | 75.30 | 75.80 | 9.40 |
| 4 | 86.30 | 78.90 | 0.00 | 75.40 | 8.90 | 66.50 | 75.10 | 75.60 | 9.20 |
| 5 | 86.10 | 78.70 | 0.00 | 75.50 | 8.70 | 66.80 | 75.20 | 75.70 | 8.90 |
| 6 | 85.70 | 78.30 | 0.00 | 75.50 | 8.40 | 67.10 | 75.30 | 75.60 | 8.70 |
| 7 | 86.20 | 77.60 | 1.20 | 75.30 | 8.30 | 67.00 | 75.10 | 75.60 | 8.60 |
| 8 | 86.30 | 76.40 | 2.50 | 75.40 | 8.10 | 67.30 | 75.10 | 75.50 | 8.40 |
| 9 | 85.50 | 75.60 | 2.50 | 75.20 | 7.70 | 67.50 | 75.20 | 75.50 | 8.20 |
| 10 | 84.90 | 75.00 | 2.50 | 75.20 | 7.60 | 67.60 | 75.00 | 75.40 | 7.90 |
| 11 | 85.20 | 75.30 | 2.50 | 75.10 | 7.50 | 67.60 | 74.90 | 75.30 | 7.90 |
| 12 | 85.00 | 75.10 | 2.50 | 75.10 | 7.40 | 67.70 | 74.90 | 75.30 | 7.70 |
| 13 | 84.90 | 75.00 | 2.50 | 75.10 | 7.40 | 67.70 | 74.90 | 75.30 | 7.70 |
| 14 | 85.40 | 75.50 | 2.50 | 75.00 | 7.50 | 67.50 | 74.80 | 75.30 | 7.70 |
| 15 | 84.30 | 74.40 | 2.50 | 75.10 | 7.50 | 67.60 | 74.90 | 75.30 | 7.80 |
| 16 | 84.30 | 74.40 | 2.50 | 74.90 | 7.50 | 67.40 | 74.80 | 75.30 | 7.80 |
| 17 | 85.00 | 75.10 | 2.50 | 75.00 | 7.50 | 67.50 | 74.90 | 75.30 | 7.80 |
| 18 | 85.20 | 75.30 | 2.50 | 75.40 | 7.70 | 67.70 | 75.30 | 75.60 | 7.90 |
| 19 | 84.90 | 75.00 | 2.50 | 75.50 | 7.40 | 68.10 | 75.30 | 75.70 | 7.70 |
| 20 | 84.50 | 74.60 | 2.50 | 75.60 | 7.30 | 68.30 | 75.40 | 75.80 | 7.60 |
| 21 | 85.30 | 75.40 | 2.50 | 75.70 | 7.30 | 68.40 | 75.50 | 75.80 | 7.60 |
| 22 | 84.20 | 76.80 | 0.00 | 75.90 | 7.30 | 68.60 | 75.70 | 76.00 | 7.60 |
| 23 | 84.80 | 77.40 | 0.00 | 75.70 | 7.50 | 68.20 | 75.60 | 76.00 | 7.90 |
| 24 | 85.20 | 77.80 | 0.00 | 75.80 | 7.90 | 67.90 | 75.60 | 76.00 | 8.20 |
|
| AVG | 86.95 | 78.05 | 1.51 | 75.38 | 7.98 | 67.39 | 75.18 | 75.60 | 8.28 |
|
| MAX | 112.90 | 105.50 | 2.50 | 75.90 | 10.50 | 68.60 | 75.70 | 76.00 | 10.70 |
| MIN | 84.20 | 74.40 | 0.00 | 74.90 | 7.30 | 65.10 | 74.80 | 75.30 | 7.60 |
| |
Powerhouse 1 |
Powerhouse 2 |
Project |
| Hour | Generation Flow kcfs | Forebay Elevation | Forebay Elevation | Generation Flow kcfs | Spillway Gates in Use | Miscellaneous Flow kcfs* |
|---|
| 1 | 9.10 | 75.6 | 75.3 | 96.40 | 0 | 7.4 |
| 2 | 9.00 | 75.5 | 75.3 | 81.40 | 0 | 7.4 |
| 3 | 10.60 | 75.5 | 75.3 | 69.00 | 0 | 7.4 |
| 4 | 9.00 | 75.4 | 75.1 | 69.90 | 0 | 7.4 |
| 5 | 8.90 | 75.5 | 75.2 | 69.80 | 0 | 7.4 |
| 6 | 8.90 | 75.5 | 75.3 | 69.40 | 0 | 7.4 |
| 7 | 8.90 | 75.3 | 75.1 | 68.70 | 2 | 7.4 |
| 8 | 8.80 | 75.4 | 75.1 | 67.60 | 2 | 7.4 |
| 9 | 8.80 | 75.2 | 75.2 | 66.80 | 2 | 7.4 |
| 10 | 8.70 | 75.2 | 75.0 | 66.30 | 2 | 7.4 |
| 11 | 8.80 | 75.1 | 74.9 | 66.50 | 2 | 7.4 |
| 12 | 8.80 | 75.1 | 74.9 | 66.30 | 2 | 7.4 |
| 13 | 8.70 | 75.1 | 74.9 | 66.30 | 2 | 7.4 |
| 14 | 8.80 | 75.0 | 74.8 | 66.70 | 2 | 7.4 |
| 15 | 8.80 | 75.1 | 74.9 | 65.60 | 2 | 7.4 |
| 16 | 8.70 | 74.9 | 74.8 | 65.70 | 2 | 7.4 |
| 17 | 8.80 | 75.0 | 74.9 | 66.30 | 2 | 7.4 |
| 18 | 8.90 | 75.4 | 75.3 | 66.40 | 2 | 7.4 |
| 19 | 8.80 | 75.5 | 75.3 | 66.20 | 2 | 7.4 |
| 20 | 8.70 | 75.6 | 75.4 | 65.90 | 2 | 7.4 |
| 21 | 8.70 | 75.7 | 75.5 | 66.70 | 2 | 7.4 |
| 22 | 8.70 | 75.9 | 75.7 | 68.10 | 2 | 7.4 |
| 23 | 8.60 | 75.7 | 75.6 | 68.80 | 0 | 7.4 |
| 24 | 8.70 | 75.8 | 75.6 | 69.10 | 0 | 7.4 |
|
| AVG | 8.88 | 75.4 | 75.2 | 69.16 | 1 | 7.4 |
|
| MAX | 10.60 | 75.9 | 75.7 | 96.40 | 2 | 7.4 |
| MIN | 8.60 | 74.9 | 74.8 | 65.60 | 0 | 7.4 |
* 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.