Bonneville Dam
Monday February 19, 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 | 127.20 | 123.30 | 0.00 | 75.70 | 11.30 | 64.40 | 75.60 | 76.10 | 11.50 |
| 2 | 129.20 | 125.30 | 0.00 | 75.60 | 11.40 | 64.20 | 75.50 | 76.00 | 11.50 |
| 3 | 131.10 | 127.20 | 0.00 | 75.70 | 11.50 | 64.20 | 75.60 | 76.00 | 11.60 |
| 4 | 133.00 | 129.10 | 0.00 | 75.40 | 11.60 | 63.80 | 75.30 | 75.80 | 11.80 |
| 5 | 134.70 | 130.80 | 0.00 | 75.20 | 11.80 | 63.40 | 75.20 | 75.70 | 12.00 |
| 6 | 126.10 | 122.10 | 0.10 | 75.30 | 11.60 | 63.70 | 75.20 | 75.70 | 11.60 |
| 7 | 124.00 | 118.90 | 1.20 | 75.20 | 11.30 | 63.90 | 75.10 | 75.70 | 11.60 |
| 8 | 122.70 | 117.60 | 1.20 | 75.20 | 11.30 | 63.90 | 75.10 | 75.60 | 11.50 |
| 9 | 121.60 | 116.50 | 1.20 | 75.50 | 11.20 | 64.30 | 75.40 | 75.80 | 11.40 |
| 10 | 122.00 | 116.90 | 1.20 | 75.50 | 11.20 | 64.30 | 75.40 | 75.90 | 11.50 |
| 11 | 124.20 | 119.10 | 1.20 | 75.50 | 11.30 | 64.20 | 75.40 | 75.90 | 11.60 |
| 12 | 123.00 | 117.90 | 1.20 | 75.60 | 11.20 | 64.40 | 75.50 | 76.00 | 11.50 |
| 13 | 122.30 | 117.20 | 1.20 | 75.70 | 11.30 | 64.40 | 75.60 | 76.00 | 11.40 |
| 14 | 125.10 | 120.00 | 1.20 | 75.50 | 11.60 | 63.90 | 75.50 | 76.00 | 11.70 |
| 15 | 123.50 | 118.40 | 1.20 | 75.60 | 11.60 | 64.00 | 75.50 | 76.00 | 11.80 |
| 16 | 123.90 | 118.80 | 1.20 | 75.70 | 11.80 | 63.90 | 75.60 | 76.00 | 12.00 |
| 17 | 122.60 | 117.50 | 1.20 | 75.70 | 11.70 | 64.00 | 75.60 | 76.00 | 12.00 |
| 18 | 118.70 | 113.60 | 1.20 | 75.80 | 11.60 | 64.20 | 75.70 | 76.10 | 11.80 |
| 19 | 116.50 | 112.00 | 0.60 | 75.70 | 11.30 | 64.40 | 75.60 | 76.00 | 11.60 |
| 20 | 115.50 | 111.60 | 0.00 | 75.60 | 11.30 | 64.30 | 75.50 | 75.90 | 11.50 |
| 21 | 115.90 | 112.00 | 0.00 | 75.60 | 11.30 | 64.30 | 75.50 | 75.90 | 11.40 |
| 22 | 116.70 | 112.80 | 0.00 | 75.50 | 11.20 | 64.30 | 75.50 | 75.90 | 11.40 |
| 23 | 118.90 | 115.00 | 0.00 | 75.40 | 11.20 | 64.20 | 75.30 | 75.80 | 11.40 |
| 24 | 122.50 | 118.60 | 0.00 | 75.30 | 11.30 | 64.00 | 75.20 | 75.70 | 11.50 |
|
| AVG | 123.37 | 118.84 | 0.63 | 75.52 | 11.41 | 64.11 | 75.43 | 75.90 | 11.61 |
|
| MAX | 134.70 | 130.80 | 1.20 | 75.80 | 11.80 | 64.40 | 75.70 | 76.10 | 12.00 |
| MIN | 115.50 | 111.60 | 0.00 | 75.20 | 11.20 | 63.40 | 75.10 | 75.60 | 11.40 |
| |
Powerhouse 1 |
Powerhouse 2 |
Project |
| Hour | Generation Flow kcfs | Forebay Elevation | Forebay Elevation | Generation Flow kcfs | Spillway Gates in Use | Miscellaneous Flow kcfs* |
|---|
| 1 | 35.40 | 75.7 | 75.6 | 87.90 | 0 | 3.9 |
| 2 | 35.70 | 75.6 | 75.5 | 89.60 | 0 | 3.9 |
| 3 | 35.70 | 75.7 | 75.6 | 91.50 | 0 | 3.9 |
| 4 | 35.90 | 75.4 | 75.3 | 93.20 | 0 | 3.9 |
| 5 | 37.00 | 75.2 | 75.2 | 93.80 | 0 | 3.9 |
| 6 | 34.70 | 75.3 | 75.2 | 87.40 | 1 | 3.9 |
| 7 | 33.70 | 75.2 | 75.1 | 85.20 | 1 | 3.9 |
| 8 | 32.40 | 75.2 | 75.1 | 85.20 | 1 | 3.9 |
| 9 | 31.60 | 75.5 | 75.4 | 84.90 | 1 | 3.9 |
| 10 | 31.60 | 75.5 | 75.4 | 85.30 | 1 | 3.9 |
| 11 | 33.60 | 75.5 | 75.4 | 85.50 | 1 | 3.9 |
| 12 | 32.60 | 75.6 | 75.5 | 85.30 | 1 | 3.9 |
| 13 | 32.20 | 75.7 | 75.6 | 85.00 | 1 | 3.9 |
| 14 | 34.20 | 75.5 | 75.5 | 85.80 | 1 | 3.9 |
| 15 | 32.80 | 75.6 | 75.5 | 85.60 | 1 | 3.9 |
| 16 | 32.70 | 75.7 | 75.6 | 86.10 | 1 | 3.9 |
| 17 | 32.20 | 75.7 | 75.6 | 85.30 | 1 | 3.9 |
| 18 | 29.00 | 75.8 | 75.7 | 84.60 | 1 | 3.9 |
| 19 | 26.50 | 75.7 | 75.6 | 85.50 | 0 | 3.9 |
| 20 | 26.30 | 75.6 | 75.5 | 85.30 | 0 | 3.9 |
| 21 | 27.00 | 75.6 | 75.5 | 85.00 | 0 | 3.9 |
| 22 | 27.30 | 75.5 | 75.5 | 85.50 | 0 | 3.9 |
| 23 | 27.90 | 75.4 | 75.3 | 87.10 | 0 | 3.9 |
| 24 | 28.10 | 75.3 | 75.2 | 90.50 | 0 | 3.9 |
|
| AVG | 31.92 | 75.5 | 75.4 | 86.92 | 1 | 3.9 |
|
| MAX | 37.00 | 75.8 | 75.7 | 93.80 | 1 | 3.9 |
| MIN | 26.30 | 75.2 | 75.1 | 84.60 | 0 | 3.9 |
* 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.