Bonneville Dam
Tuesday September 10, 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 | 74.20 | 66.80 | 0.00 | 75.40 | 8.10 | 67.30 | 75.30 | 75.60 | 8.60 |
| 2 | 74.10 | 66.70 | 0.00 | 75.40 | 8.00 | 67.40 | 75.30 | 75.60 | 8.30 |
| 3 | 71.80 | 64.40 | 0.00 | 75.50 | 7.70 | 67.80 | 75.40 | 75.70 | 8.00 |
| 4 | 70.40 | 63.00 | 0.00 | 75.50 | 7.40 | 68.10 | 75.30 | 75.70 | 7.80 |
| 5 | 70.70 | 63.30 | 0.00 | 75.50 | 7.30 | 68.20 | 75.30 | 75.70 | 7.70 |
| 6 | 72.20 | 64.80 | 0.00 | 75.50 | 7.10 | 68.40 | 75.30 | 75.60 | 7.40 |
| 7 | 79.40 | 70.80 | 1.20 | 75.40 | 7.50 | 67.90 | 75.30 | 75.60 | 7.70 |
| 8 | 81.10 | 71.20 | 2.50 | 75.40 | 7.30 | 68.10 | 75.20 | 75.60 | 7.60 |
| 9 | 81.00 | 71.10 | 2.50 | 75.30 | 7.20 | 68.10 | 75.20 | 75.50 | 7.40 |
| 10 | 81.40 | 71.50 | 2.50 | 75.20 | 7.10 | 68.10 | 75.10 | 75.50 | 7.40 |
| 11 | 81.80 | 71.90 | 2.50 | 75.20 | 7.00 | 68.20 | 75.00 | 75.50 | 7.30 |
| 12 | 82.30 | 72.40 | 2.50 | 74.90 | 7.40 | 67.50 | 74.90 | 75.40 | 7.70 |
| 13 | 98.70 | 88.80 | 2.50 | 75.00 | 8.60 | 66.40 | 74.80 | 75.30 | 8.90 |
| 14 | 100.20 | 90.30 | 2.50 | 75.00 | 8.70 | 66.30 | 74.90 | 75.30 | 8.90 |
| 15 | 102.20 | 92.30 | 2.50 | 75.00 | 8.60 | 66.40 | 74.90 | 75.30 | 8.90 |
| 16 | 102.10 | 92.20 | 2.50 | 75.10 | 8.80 | 66.30 | 74.90 | 75.40 | 8.90 |
| 17 | 102.10 | 92.30 | 2.40 | 75.20 | 8.60 | 66.60 | 75.00 | 75.50 | 8.90 |
| 18 | 115.40 | 105.60 | 2.40 | 75.20 | 9.50 | 65.70 | 75.10 | 75.60 | 9.80 |
| 19 | 116.20 | 106.40 | 2.40 | 75.40 | 9.60 | 65.80 | 75.20 | 75.70 | 9.80 |
| 20 | 115.60 | 105.80 | 2.40 | 75.40 | 9.50 | 65.90 | 75.20 | 75.70 | 9.70 |
| 21 | 115.10 | 105.30 | 2.40 | 75.50 | 9.60 | 65.90 | 75.30 | 75.80 | 9.80 |
| 22 | 111.60 | 104.20 | 0.00 | 75.50 | 9.50 | 66.00 | 75.40 | 75.90 | 9.80 |
| 23 | 112.00 | 104.60 | 0.00 | 75.60 | 9.90 | 65.70 | 75.40 | 75.90 | 10.20 |
| 24 | 112.70 | 105.30 | 0.00 | 75.70 | 10.20 | 65.50 | 75.40 | 75.90 | 10.50 |
|
| AVG | 92.68 | 83.79 | 1.49 | 75.33 | 8.34 | 66.98 | 75.17 | 75.60 | 8.63 |
|
| MAX | 116.20 | 106.40 | 2.50 | 75.70 | 10.20 | 68.40 | 75.40 | 75.90 | 10.50 |
| MIN | 70.40 | 63.00 | 0.00 | 74.90 | 7.00 | 65.50 | 74.80 | 75.30 | 7.30 |
| |
Powerhouse 1 |
Powerhouse 2 |
Project |
| Hour | Generation Flow kcfs | Forebay Elevation | Forebay Elevation | Generation Flow kcfs | Spillway Gates in Use | Miscellaneous Flow kcfs* |
|---|
| 1 | 8.90 | 75.4 | 75.3 | 57.90 | 0 | 7.4 |
| 2 | 8.90 | 75.4 | 75.3 | 57.80 | 0 | 7.4 |
| 3 | 8.20 | 75.5 | 75.4 | 56.20 | 0 | 7.4 |
| 4 | 8.20 | 75.5 | 75.3 | 54.80 | 0 | 7.4 |
| 5 | 8.60 | 75.5 | 75.3 | 54.70 | 0 | 7.4 |
| 6 | 8.90 | 75.5 | 75.3 | 55.90 | 0 | 7.4 |
| 7 | 7.90 | 75.4 | 75.3 | 62.90 | 2 | 7.4 |
| 8 | 7.80 | 75.4 | 75.2 | 63.40 | 2 | 7.4 |
| 9 | 7.80 | 75.3 | 75.2 | 63.30 | 2 | 7.4 |
| 10 | 7.90 | 75.2 | 75.1 | 63.60 | 2 | 7.4 |
| 11 | 7.90 | 75.2 | 75.0 | 64.00 | 2 | 7.4 |
| 12 | 8.00 | 74.9 | 74.9 | 64.40 | 2 | 7.4 |
| 13 | 9.00 | 75.0 | 74.8 | 79.80 | 2 | 7.4 |
| 14 | 8.90 | 75.0 | 74.9 | 81.40 | 2 | 7.4 |
| 15 | 8.90 | 75.0 | 74.9 | 83.40 | 2 | 7.4 |
| 16 | 8.90 | 75.1 | 74.9 | 83.30 | 2 | 7.4 |
| 17 | 8.90 | 75.2 | 75.0 | 83.40 | 2 | 7.4 |
| 18 | 9.30 | 75.2 | 75.1 | 96.30 | 2 | 7.4 |
| 19 | 9.00 | 75.4 | 75.2 | 97.40 | 2 | 7.4 |
| 20 | 9.00 | 75.4 | 75.2 | 96.80 | 2 | 7.4 |
| 21 | 9.00 | 75.5 | 75.3 | 96.30 | 0 | 7.4 |
| 22 | 8.90 | 75.5 | 75.4 | 95.30 | 0 | 7.4 |
| 23 | 9.00 | 75.6 | 75.4 | 95.60 | 0 | 7.4 |
| 24 | 9.10 | 75.7 | 75.4 | 96.20 | 0 | 7.4 |
|
| AVG | 8.62 | 75.3 | 75.2 | 75.17 | 1 | 7.4 |
|
| MAX | 9.30 | 75.7 | 75.4 | 97.40 | 2 | 7.4 |
| MIN | 7.80 | 74.9 | 74.8 | 54.70 | 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.