Ice Harbor Dam
Friday March 20, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head | Nav Lock Tailwater Elevation |
|---|
| 1 | 67.60 | 53.70 | 13.40 | 439.43 | 343.37 | 96.06 | 343.64 |
| 2 | 63.80 | 53.60 | 9.70 | 439.32 | 343.35 | 95.97 | 343.55 |
| 3 | 63.70 | 53.60 | 9.60 | 439.33 | 343.32 | 96.01 | 343.53 |
| 4 | 63.90 | 53.70 | 9.70 | 439.40 | 343.38 | 96.02 | 343.48 |
| 5 | 64.40 | 54.20 | 9.60 | 439.34 | 343.31 | 96.03 | 343.47 |
| 6 | 74.00 | 54.30 | 19.20 | 439.31 | 343.85 | 95.46 | 344.23 |
| 7 | 74.70 | 54.20 | 20.00 | 439.39 | 343.88 | 95.51 | 344.26 |
| 8 | 74.40 | 54.10 | 19.80 | 439.28 | 343.90 | 95.38 | 344.27 |
| 9 | 74.70 | 54.30 | 19.90 | 439.25 | 343.92 | 95.33 | 344.25 |
| 10 | 75.00 | 54.40 | 20.10 | 439.28 | 343.95 | 95.33 | 344.24 |
| 11 | 74.80 | 54.30 | 20.00 | 439.03 | 343.84 | 95.19 | 344.06 |
| 12 | 74.70 | 54.30 | 19.90 | 439.02 | 343.91 | 95.11 | 344.23 |
| 13 | 74.70 | 54.30 | 19.90 | 438.96 | 343.90 | 95.06 | 344.22 |
| 14 | 74.60 | 54.30 | 19.80 | 438.87 | 343.94 | 94.93 | 344.34 |
| 15 | 74.70 | 54.30 | 19.90 | 438.81 | 343.91 | 94.90 | 344.18 |
| 16 | 74.80 | 54.30 | 20.00 | 438.70 | 343.88 | 94.82 | 344.22 |
| 17 | 74.70 | 54.30 | 19.90 | 438.65 | 343.96 | 94.69 | 344.13 |
| 18 | 74.60 | 54.10 | 19.90 | 438.59 | 343.99 | 94.60 | 344.19 |
| 19 | 74.40 | 54.00 | 19.80 | 438.47 | 343.98 | 94.49 | 344.30 |
| 20 | 74.50 | 54.30 | 19.70 | 438.34 | 343.96 | 94.38 | 344.21 |
| 21 | 74.30 | 54.20 | 19.60 | 438.31 | 343.84 | 94.47 | 344.22 |
| 22 | 74.30 | 54.20 | 19.50 | 438.20 | 344.01 | 94.19 | 344.42 |
| 23 | 66.40 | 54.20 | 11.70 | 438.28 | 343.47 | 94.81 | 343.70 |
| 24 | 64.60 | 54.20 | 10.00 | 438.25 | 343.46 | 94.79 | 343.64 |
|
| AVG | 71.76 | 54.14 | 17.11 | 438.91 | 343.76 | 95.15 | 344.04 |
|
| MAX | 75.00 | 54.40 | 20.10 | 439.43 | 344.01 | 96.06 | 344.42 |
| MIN | 63.70 | 53.60 | 9.60 | 438.20 | 343.31 | 94.19 | 343.47 |