Bonneville Dam
Wednesday September 25, 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 | 94.00 | 86.60 | 0.00 | 75.50 | 9.60 | 65.90 | 75.40 | 75.80 | 9.70 |
| 2 | 76.70 | 69.30 | 0.00 | 75.50 | 8.70 | 66.80 | 75.40 | 75.70 | 8.80 |
| 3 | 75.20 | 67.80 | 0.00 | 75.50 | 8.70 | 66.80 | 75.30 | 75.70 | 8.70 |
| 4 | 75.40 | 68.00 | 0.00 | 75.40 | 8.60 | 66.80 | 75.30 | 75.60 | 8.60 |
| 5 | 75.80 | 68.40 | 0.00 | 75.40 | 8.40 | 67.00 | 75.20 | 75.60 | 8.40 |
| 6 | 75.00 | 67.60 | 0.00 | 75.30 | 8.50 | 66.80 | 75.10 | 75.50 | 8.10 |
| 7 | 75.10 | 67.70 | 0.00 | 75.30 | 8.00 | 67.30 | 75.20 | 75.50 | 7.90 |
| 8 | 77.30 | 67.40 | 2.50 | 75.30 | 7.90 | 67.40 | 75.10 | 75.50 | 7.90 |
| 9 | 75.60 | 65.70 | 2.50 | 75.40 | 7.50 | 67.90 | 75.20 | 75.50 | 7.50 |
| 10 | 75.40 | 65.50 | 2.50 | 75.30 | 6.90 | 68.40 | 75.20 | 75.50 | 7.20 |
| 11 | 74.00 | 64.10 | 2.50 | 75.20 | 6.80 | 68.40 | 75.10 | 75.50 | 7.10 |
| 12 | 73.90 | 64.00 | 2.50 | 75.10 | 6.60 | 68.50 | 75.00 | 75.40 | 6.90 |
| 13 | 74.00 | 64.10 | 2.50 | 75.00 | 6.50 | 68.50 | 74.80 | 75.30 | 6.80 |
| 14 | 75.10 | 65.20 | 2.50 | 75.20 | 6.60 | 68.60 | 75.10 | 75.40 | 7.00 |
| 15 | 78.90 | 69.00 | 2.50 | 75.40 | 7.50 | 67.90 | 75.30 | 75.60 | 7.40 |
| 16 | 81.80 | 71.90 | 2.50 | 75.40 | 7.90 | 67.50 | 75.30 | 75.60 | 7.80 |
| 17 | 79.60 | 69.70 | 2.50 | 75.40 | 7.80 | 67.60 | 75.20 | 75.50 | 7.80 |
| 18 | 96.10 | 86.20 | 2.50 | 75.20 | 9.00 | 66.20 | 75.10 | 75.60 | 8.90 |
| 19 | 97.40 | 87.50 | 2.50 | 75.50 | 9.00 | 66.50 | 75.30 | 75.70 | 8.90 |
| 20 | 96.40 | 86.50 | 2.50 | 75.50 | 8.80 | 66.70 | 75.30 | 75.70 | 8.80 |
| 21 | 94.60 | 86.00 | 1.20 | 75.50 | 8.70 | 66.80 | 75.30 | 75.70 | 8.70 |
| 22 | 93.50 | 86.10 | 0.00 | 75.60 | 8.60 | 67.00 | 75.40 | 75.80 | 8.50 |
| 23 | 93.30 | 85.90 | 0.00 | 75.60 | 8.60 | 67.00 | 75.50 | 75.80 | 8.60 |
| 24 | 93.60 | 86.20 | 0.00 | 75.60 | 8.70 | 66.90 | 75.40 | 75.80 | 8.60 |
|
| AVG | 82.40 | 73.60 | 1.40 | 75.38 | 8.08 | 67.30 | 75.23 | 75.60 | 8.11 |
|
| MAX | 97.40 | 87.50 | 2.50 | 75.60 | 9.60 | 68.60 | 75.50 | 75.80 | 9.70 |
| MIN | 73.90 | 64.00 | 0.00 | 75.00 | 6.50 | 65.90 | 74.80 | 75.30 | 6.80 |
| |
Powerhouse 1 |
Powerhouse 2 |
Project |
| Hour | Generation Flow kcfs | Forebay Elevation | Forebay Elevation | Generation Flow kcfs | Spillway Gates in Use | Miscellaneous Flow kcfs* |
|---|
| 1 | 0.00 | 75.5 | 75.4 | 86.60 | 0 | 7.4 |
| 2 | 0.00 | 75.5 | 75.4 | 69.30 | 0 | 7.4 |
| 3 | 0.00 | 75.5 | 75.3 | 67.80 | 0 | 7.4 |
| 4 | 0.00 | 75.4 | 75.3 | 68.00 | 0 | 7.4 |
| 5 | 0.00 | 75.4 | 75.2 | 68.40 | 0 | 7.4 |
| 6 | 0.00 | 75.3 | 75.1 | 67.60 | 0 | 7.4 |
| 7 | 0.00 | 75.3 | 75.2 | 67.70 | 2 | 7.4 |
| 8 | 0.00 | 75.3 | 75.1 | 67.40 | 2 | 7.4 |
| 9 | 0.00 | 75.4 | 75.2 | 65.70 | 2 | 7.4 |
| 10 | 5.20 | 75.3 | 75.2 | 60.30 | 2 | 7.4 |
| 11 | 8.10 | 75.2 | 75.1 | 56.00 | 2 | 7.4 |
| 12 | 8.20 | 75.1 | 75.0 | 55.80 | 2 | 7.4 |
| 13 | 8.20 | 75.0 | 74.8 | 55.90 | 2 | 7.4 |
| 14 | 8.10 | 75.2 | 75.1 | 57.10 | 2 | 7.4 |
| 15 | 4.80 | 75.4 | 75.3 | 64.20 | 2 | 7.4 |
| 16 | 0.00 | 75.4 | 75.3 | 71.90 | 2 | 7.4 |
| 17 | 0.00 | 75.4 | 75.2 | 69.70 | 2 | 7.4 |
| 18 | 0.00 | 75.2 | 75.1 | 86.20 | 2 | 7.4 |
| 19 | 0.00 | 75.5 | 75.3 | 87.50 | 2 | 7.4 |
| 20 | 0.00 | 75.5 | 75.3 | 86.50 | 2 | 7.4 |
| 21 | 0.00 | 75.5 | 75.3 | 86.00 | 2 | 7.4 |
| 22 | 0.00 | 75.6 | 75.4 | 86.10 | 0 | 7.4 |
| 23 | 0.00 | 75.6 | 75.5 | 85.90 | 0 | 7.4 |
| 24 | 0.00 | 75.6 | 75.4 | 86.20 | 0 | 7.4 |
|
| AVG | 1.77 | 75.4 | 75.2 | 71.83 | 1 | 7.4 |
|
| MAX | 8.20 | 75.6 | 75.5 | 87.50 | 2 | 7.4 |
| MIN | 0.00 | 75.0 | 74.8 | 55.80 | 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.