Ice Harbor Dam
Thursday March 19, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 74.90 | 54.40 | 20.10 | 439.36 | 344.18 | 95.18 | 344.07 |
| 2 | 74.90 | 54.30 | 20.00 | 439.27 | 344.26 | 95.01 | 344.05 |
| 3 | 74.80 | 54.30 | 20.00 | 439.19 | 344.20 | 94.99 | 344.05 |
| 4 | 74.80 | 54.30 | 20.00 | 439.11 | 344.36 | 94.75 | 344.09 |
| 5 | 74.80 | 54.40 | 20.00 | 438.99 | 344.24 | 94.75 | 344.10 |
| 6 | 74.80 | 54.30 | 20.00 | 439.17 | 344.34 | 94.83 | 344.12 |
| 7 | 74.80 | 54.30 | 20.00 | 439.10 | 344.29 | 94.81 | 344.12 |
| 8 | 74.60 | 54.10 | 20.00 | 439.13 | 344.23 | 94.90 | 344.06 |
| 9 | 74.40 | 53.90 | 20.00 | 439.12 | 344.22 | 94.90 | 344.12 |
| 10 | 74.20 | 53.70 | 20.00 | 439.32 | 344.26 | 95.06 | 344.09 |
| 11 | 68.90 | 53.70 | 14.80 | 439.07 | 343.80 | 95.27 | 343.54 |
| 12 | 64.50 | 53.90 | 10.10 | 439.10 | 343.75 | 95.35 | 343.50 |
| 13 | 64.50 | 53.90 | 10.10 | 439.13 | 343.68 | 95.45 | 343.46 |
| 14 | 64.20 | 53.60 | 10.10 | 439.12 | 343.71 | 95.41 | 343.47 |
| 15 | 64.30 | 53.70 | 10.10 | 439.16 | 343.75 | 95.41 | 343.45 |
| 16 | 65.70 | 53.60 | 10.10 | 439.15 | 343.87 | 95.28 | 343.62 |
| 17 | 64.20 | 53.60 | 10.10 | 439.49 | 343.78 | 95.71 | 343.58 |
| 18 | 74.20 | 53.80 | 19.90 | 439.40 | 343.93 | 95.47 | 344.28 |
| 19 | 74.00 | 53.50 | 20.00 | 439.54 | 343.93 | 95.61 | 344.30 |
| 20 | 74.20 | 53.60 | 20.10 | 439.44 | 343.93 | 95.51 | 344.22 |
| 21 | 74.00 | 53.40 | 20.10 | 439.51 | 343.82 | 95.69 | 344.22 |
| 22 | 74.40 | 53.70 | 20.10 | 439.51 | 343.86 | 95.65 | 344.17 |
| 23 | 74.20 | 53.50 | 20.20 | 439.56 | 343.92 | 95.64 | 344.21 |
| 24 | 74.10 | 53.70 | 20.00 | 439.30 | 343.86 | 95.44 | 344.24 |
|
| AVG | 71.77 | 53.88 | 17.33 | 439.26 | 344.01 | 95.25 | 343.96 |
|
| MAX | 74.90 | 54.40 | 20.20 | 439.56 | 344.36 | 95.71 | 344.30 |
| MIN | 64.20 | 53.40 | 10.10 | 438.99 | 343.68 | 94.75 | 343.45 |