Lower Granite Bypass and Spillway Analyses
Data Courtesy of Pacific States Marine Fisheries Commission
PIT Tag Lower Granite Bypass and Spillway Analysis
Lower Granite Bypass and Spillway Juvenile and Adult Daily Summary
Last Update: April 18 2024 07:55:04.
| Calendar Date | Spill Conditions | Juveniles | Adults | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Outflow (daily avg) kcfs |
Spill (daily avg) kcfs |
Spill Hours All Bays |
Spill Hours Spillbay 1 |
Percent Spill in Spillbay 1 |
Chinook | Steelhead | Coho | Sockeye | Chinook | Steelhead | Coho | Sockeye | |||||||||
| Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | ||||||
| Calendar Date | Spill Conditions | Juveniles | Adults | ||||||||||||||||||
| Outflow (daily avg) kcfs |
Spill (daily avg) kcfs |
Spill Hours All Bays |
Spill Hours Spillbay 1 |
Percent Spill in Spillbay 1 |
Chinook | Steelhead | Coho | Sockeye | Chinook | Steelhead | Coho | Sockeye | |||||||||
| Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | Spillway (GRS) | Bypass (GRJ) | ||||||
| YTD Total | 7654 | 2377 | 13021 | 1957 | 1 | 1 | 1 | 222 | 17 | ||||||||||||
| 2024-04-17 | NA | NA | 3 | 3 | 7.8 | 20 | 16 | 39 | 20 | ||||||||||||
| 2024-04-16 | 97.7 | 80.1 | 24 | 24 | 8.2 | 885 | 295 | 1362 | 504 | 1 | 1 | 10 | |||||||||
| 2024-04-15 | 85.3 | 72.8 | 24 | 24 | 8.9 | 451 | 108 | 2021 | 153 | 10 | |||||||||||
| 2024-04-14 | 74.2 | 61.7 | 24 | 24 | 10.2 | 638 | 109 | 1979 | 93 | 1 | 7 | 1 | |||||||||
| 2024-04-13 | 65.0 | 52.6 | 24 | 24 | 11.8 | 984 | 138 | 686 | 97 | 9 | |||||||||||
| 2024-04-12 | 61.3 | 48.9 | 24 | 24 | 12.9 | 713 | 133 | 1075 | 54 | 9 | 1 | ||||||||||
| 2024-04-11 | 63.8 | 51.4 | 24 | 24 | 12.4 | 386 | 156 | 523 | 60 | 6 | |||||||||||
| 2024-04-10 | 65.6 | 53.1 | 24 | 24 | 12.5 | 405 | 240 | 468 | 79 | 8 | |||||||||||
| 2024-04-09 | 62.3 | 49.8 | 24 | 24 | 12.7 | 518 | 262 | 455 | 130 | 7 | 2 | ||||||||||
| 2024-04-08 | 66.6 | 54.2 | 24 | 24 | 12.2 | 426 | 112 | 400 | 102 | 8 | 3 | ||||||||||
| 2024-04-07 | 63.9 | 51.6 | 24 | 24 | 12.3 | 279 | 59 | 588 | 48 | 4 | 1 | ||||||||||
| 2024-04-06 | 67.7 | 55.2 | 24 | 24 | 11.2 | 230 | 79 | 1302 | 49 | 4 | |||||||||||
| 2024-04-05 | 61.4 | 49.0 | 24 | 24 | 12.6 | 216 | 77 | 703 | 41 | 2 | |||||||||||
| 2024-04-04 | 53.6 | 41.2 | 24 | 24 | 16.3 | 325 | 123 | 312 | 60 | 2 | |||||||||||
| 2024-04-03 | 41.6 | 29.1 | 24 | 24 | 20.8 | 437 | 65 | 368 | 49 | 6 | |||||||||||
| 2024-04-02 | 41.5 | 6.3 | 24 | 24 | 98.1 | 125 | 133 | 317 | 177 | 6 | 1 | ||||||||||
| 2024-04-01 | 48.8 | 6.6 | 24 | 24 | 100.0 | 122 | 139 | 329 | 183 | 6 | 1 | ||||||||||
| 2024-03-31 | 47.8 | 7.6 | 24 | 24 | 100.2 | 58 | 24 | 63 | 46 | 4 | 1 | ||||||||||
| 2024-03-30 | 46.7 | 8.4 | 24 | 24 | 100.0 | 41 | 18 | 14 | 9 | 1 | 1 | ||||||||||
| 2024-03-29 | 48.7 | 8.5 | 24 | 24 | 99.9 | 43 | 13 | 2 | 2 | ||||||||||||
| 2024-03-28 | 44.9 | 8.2 | 24 | 24 | 100.0 | 98 | 30 | 7 | 1 | ||||||||||||
| 2024-03-27 | 47.2 | 8.0 | 24 | 24 | 100.3 | 104 | 13 | 4 | 2 | ||||||||||||
| 2024-03-26 | 51.4 | 8.9 | 24 | 24 | 100.1 | 52 | 6 | 3 | 4 | ||||||||||||
| 2024-03-25 | 52.4 | 8.4 | 24 | 24 | 100.0 | 14 | 8 | 1 | 1 | 4 | |||||||||||
| 2024-03-24 | 49.0 | 7.8 | 24 | 24 | 100.0 | 48 | 7 | 2 | 2 | 5 | 1 | ||||||||||
| 2024-03-23 | 50.2 | 8.1 | 24 | 24 | 100.0 | 15 | 2 | 3 | 4 | ||||||||||||
| 2024-03-22 | 52.5 | 8.0 | 24 | 23 | 95.8 | 9 | 1 | 4 | |||||||||||||
| 2024-03-21 | 44.0 | 7.9 | 24 | 24 | 100.1 | 8 | 2 | 1 | 15 | 1 | |||||||||||
| 2024-03-20 | 44.0 | 1.9 | 7 | 6 | 99.8 | 2 | 6 | 5 | |||||||||||||
| 2024-03-19 | 45.0 | 2.0 | 4 | 4 | 99.7 | 6 | 1 | ||||||||||||||
| 2024-03-18 | 41.7 | 2.4 | 5 | 5 | 100.1 | 1 | 3 | 1 | |||||||||||||
| 2024-03-17 | 40.7 | 2.1 | 5 | 5 | 99.3 | 1 | 2 | ||||||||||||||
| 2024-03-16 | 40.1 | 2.1 | 5 | 5 | 100.0 | 1 | 2 | ||||||||||||||
| 2024-03-15 | 39.8 | 1.9 | 4 | 4 | 99.8 | 3 | |||||||||||||||
| 2024-03-14 | 33.8 | 1.5 | 5 | 5 | 100.1 | 2 | |||||||||||||||
| 2024-03-13 | 41.2 | 2.1 | 5 | 6 | 99.7 | 2 | 1 | ||||||||||||||
| 2024-03-12 | 36.4 | 2.0 | 5 | 5 | 99.1 | 1 | |||||||||||||||
| 2024-03-11 | 39.3 | 2.0 | 5 | 5 | 99.8 | ||||||||||||||||
| 2024-03-10 | 38.3 | 2.0 | 6 | 5 | 99.9 | 2 | |||||||||||||||
| 2024-03-09 | 38.0 | 2.0 | 5 | 4 | 99.1 | 1 | |||||||||||||||
| 2024-03-08 | 39.6 | 1.9 | 5 | 4 | 99.8 | 1 | |||||||||||||||
| 2024-03-07 | 34.7 | 1.5 | 5 | 5 | 100.1 | 2 | |||||||||||||||
| 2024-03-06 | 43.2 | 2.1 | 6 | 5 | 100.7 | 5 | |||||||||||||||
| 2024-03-05 | 40.0 | 2.1 | 6 | 5 | 100.6 | 3 | |||||||||||||||
| 2024-03-04 | 44.2 | 2.0 | 5 | 4 | 99.9 | 1 | |||||||||||||||
| 2024-03-03 | 36.4 | 1.7 | 5 | 4 | 100.4 | 9 | |||||||||||||||
| 2024-03-02 | 45.2 | 1.9 | 6 | 5 | 100.4 | 1 | 9 | ||||||||||||||
| 2024-03-01 | 53.1 | 2.2 | 5 | 5 | 99.2 | 7 | |||||||||||||||
| 2024-02-29 | 40.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-28 | 41.4 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-27 | 49.1 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-26 | 39.1 | 0.0 | 0 | 0 | 0.0 | 1 | |||||||||||||||
| 2024-02-25 | 37.4 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-24 | 35.8 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-23 | 40.5 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-22 | 35.2 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-21 | 38.7 | 0.0 | 3 | 0 | 0.0 | ||||||||||||||||
| 2024-02-20 | 37.7 | 0.0 | 1 | 0 | 0.0 | ||||||||||||||||
| 2024-02-19 | 40.3 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-18 | 32.3 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-17 | 37.6 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-16 | 39.7 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-15 | 33.7 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-14 | 37.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-13 | 38.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-12 | 37.2 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-11 | 36.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-10 | 41.1 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-09 | 40.8 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-08 | 34.0 | 0.2 | 3 | 0 | 0.0 | ||||||||||||||||
| 2024-02-07 | 40.1 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-02-06 | 32.7 | 12.1 | 11 | 0 | 0.0 | ||||||||||||||||
| 2024-02-05 | 32.5 | 12.9 | 18 | 0 | 0.0 | ||||||||||||||||
| 2024-02-04 | 33.8 | 14.2 | 24 | 0 | 0.0 | ||||||||||||||||
| 2024-02-03 | 37.7 | 15.9 | 24 | 0 | 0.0 | ||||||||||||||||
| 2024-02-02 | 35.9 | 16.4 | 24 | 0 | 0.0 | ||||||||||||||||
| 2024-02-01 | 37.0 | 12.0 | 24 | 0 | 0.0 | ||||||||||||||||
| 2024-01-31 | 30.9 | 9.5 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-30 | 31.3 | 9.9 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-29 | 30.7 | 9.3 | 11 | 0 | 0.0 | ||||||||||||||||
| 2024-01-28 | 27.3 | 6.7 | 11 | 0 | 0.0 | ||||||||||||||||
| 2024-01-27 | 24.5 | 4.4 | 11 | 0 | 0.0 | ||||||||||||||||
| 2024-01-26 | 24.5 | 4.7 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-25 | 27.2 | 2.7 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-24 | 22.3 | 3.5 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-23 | 21.3 | 3.0 | 13 | 0 | 0.0 | ||||||||||||||||
| 2024-01-22 | 22.3 | 2.3 | 11 | 0 | 0.0 | ||||||||||||||||
| 2024-01-21 | 19.2 | 1.1 | 5 | 0 | 0.0 | ||||||||||||||||
| 2024-01-20 | 17.8 | 2.4 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-19 | 29.4 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-18 | 21.1 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-17 | 25.4 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-16 | 24.7 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-15 | 26.2 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-14 | 24.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-13 | 26.1 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-12 | 23.7 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-11 | 18.0 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-10 | 22.1 | 3.4 | 12 | 0 | 0.0 | ||||||||||||||||
| 2024-01-09 | 21.0 | 2.9 | 13 | 0 | 0.0 | ||||||||||||||||
| 2024-01-08 | 27.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-07 | 21.0 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-06 | 24.6 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-05 | 24.0 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-04 | 24.7 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-03 | 22.8 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-02 | 22.4 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
| 2024-01-01 | 21.9 | 0.0 | 0 | 0 | 0.0 | ||||||||||||||||
Lower Granite Bypass and Spillway Juvenile Downstream Detections Summary by Species
Last Update: April 18 2024 07:55:08.
| Calendar Date | Spillway and then Downstream, Unique TagIDs Detected | Bypass and then Downstream, Unique TagIDs Detected | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spillway (GRS) | Little Goose | Lower Monumental | Ice Harbor | McNary | John Day | Bonneville | Bypass (GRJ) | Little Goose | Lower Monumental | Ice Harbor | McNary | John Day | Bonneville | |
| YTD Total | 7654 | 97 | 19 | 23 | 35 | 1 | 3 | 2377 | 41 | 8 | 8 | 7 | 1 | 1 |
| 2024-04-17 | 20 | 16 | 1 | |||||||||||
| 2024-04-16 | 885 | 21 | 2 | 3 | 3 | 1 | 295 | 8 | 1 | 2 | 3 | |||
| 2024-04-15 | 451 | 14 | 2 | 3 | 11 | 2 | 108 | 3 | 1 | |||||
| 2024-04-14 | 638 | 6 | 3 | 3 | 109 | 1 | 1 | 1 | 1 | |||||
| 2024-04-13 | 984 | 10 | 2 | 3 | 138 | 8 | 1 | |||||||
| 2024-04-12 | 713 | 6 | 4 | 5 | 2 | 133 | 1 | 3 | ||||||
| 2024-04-11 | 386 | 5 | 2 | 1 | 1 | 156 | 1 | 1 | 1 | |||||
| 2024-04-10 | 405 | 3 | 4 | 2 | 1 | 240 | 6 | |||||||
| 2024-04-09 | 518 | 3 | 4 | 262 | 3 | 1 | 1 | |||||||
| 2024-04-08 | 426 | 2 | 2 | 112 | 1 | 1 | ||||||||
| 2024-04-07 | 279 | 4 | 1 | 59 | 1 | 1 | ||||||||
| 2024-04-06 | 230 | 79 | 3 | 1 | ||||||||||
| 2024-04-05 | 216 | 2 | 77 | |||||||||||
| 2024-04-04 | 325 | 1 | 123 | |||||||||||
| 2024-04-03 | 437 | 1 | 65 | |||||||||||
| 2024-04-02 | 125 | 1 | 1 | 3 | 133 | 2 | ||||||||
| 2024-04-01 | 122 | 5 | 2 | 2 | 139 | |||||||||
| 2024-03-31 | 58 | 2 | 24 | |||||||||||
| 2024-03-30 | 41 | 1 | 1 | 1 | 18 | 1 | 1 | |||||||
| 2024-03-29 | 43 | 4 | 13 | 1 | ||||||||||
| 2024-03-28 | 98 | 6 | 30 | |||||||||||
| 2024-03-27 | 104 | 13 | 1 | |||||||||||
| 2024-03-26 | 52 | 3 | 6 | 1 | ||||||||||
| 2024-03-25 | 14 | 1 | 8 | |||||||||||
| 2024-03-24 | 48 | 7 | ||||||||||||
| 2024-03-23 | 15 | 2 | ||||||||||||
| 2024-03-22 | 9 | |||||||||||||
| 2024-03-21 | 8 | 2 | ||||||||||||
| 2024-03-20 | 2 | 6 | ||||||||||||
| 2024-03-19 | ||||||||||||||
| 2024-03-18 | 1 | 1 | ||||||||||||
| 2024-03-17 | 1 | |||||||||||||
| 2024-03-16 | 1 | |||||||||||||
| 2024-03-15 | ||||||||||||||
| 2024-03-14 | ||||||||||||||
| 2024-03-13 | 2 | |||||||||||||
| 2024-03-12 | ||||||||||||||
| 2024-03-11 | ||||||||||||||
| 2024-03-10 | ||||||||||||||
| 2024-03-09 | ||||||||||||||
| 2024-03-08 | ||||||||||||||
| 2024-03-07 | ||||||||||||||
| 2024-03-06 | ||||||||||||||
| 2024-03-05 | ||||||||||||||
| 2024-03-04 | ||||||||||||||
| 2024-03-03 | ||||||||||||||
| 2024-03-02 | 1 | |||||||||||||
| Calendar Date | Spillway and then Downstream, Unique TagIDs Detected | Bypass and then Downstream, Unique TagIDs Detected | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spillway (GRS) | Little Goose | Lower Monumental | Ice Harbor | McNary | John Day | Bonneville | Bypass (GRJ) | Little Goose | Lower Monumental | Ice Harbor | McNary | John Day | Bonneville | |
| YTD Total | 13021 | 232 | 61 | 95 | 64 | 5 | 17 | 1957 | 49 | 12 | 22 | 26 | 7 | |
| 2024-04-17 | 39 | 2 | 1 | 20 | 1 | |||||||||
| 2024-04-16 | 1362 | 41 | 7 | 17 | 9 | 2 | 11 | 504 | 6 | 3 | 2 | 3 | 2 | |
| 2024-04-15 | 2021 | 21 | 14 | 25 | 11 | 2 | 4 | 153 | 2 | 1 | 4 | 1 | 5 | |
| 2024-04-14 | 1979 | 16 | 9 | 12 | 6 | 1 | 1 | 93 | 4 | 1 | 4 | 1 | ||
| 2024-04-13 | 686 | 20 | 7 | 11 | 6 | 97 | 4 | 2 | 2 | |||||
| 2024-04-12 | 1075 | 23 | 8 | 10 | 3 | 54 | 3 | 1 | 1 | |||||
| 2024-04-11 | 523 | 11 | 3 | 4 | 4 | 60 | 6 | 2 | 3 | |||||
| 2024-04-10 | 468 | 17 | 1 | 6 | 11 | 79 | 1 | 2 | 6 | |||||
| 2024-04-09 | 455 | 11 | 5 | 4 | 8 | 1 | 130 | 1 | 1 | 9 | ||||
| 2024-04-08 | 400 | 19 | 4 | 6 | 2 | 102 | 3 | 1 | 2 | 1 | ||||
| 2024-04-07 | 588 | 10 | 1 | 1 | 48 | 2 | 3 | |||||||
| 2024-04-06 | 1302 | 5 | 2 | 49 | 3 | |||||||||
| 2024-04-05 | 703 | 4 | 41 | 1 | 1 | |||||||||
| 2024-04-04 | 312 | 15 | 60 | 6 | ||||||||||
| 2024-04-03 | 368 | 12 | 1 | 49 | 8 | |||||||||
| 2024-04-02 | 317 | 3 | 177 | 1 | ||||||||||
| 2024-04-01 | 329 | 1 | 183 | |||||||||||
| 2024-03-31 | 63 | 1 | 46 | |||||||||||
| 2024-03-30 | 14 | 9 | ||||||||||||
| 2024-03-29 | 2 | |||||||||||||
| 2024-03-28 | 1 | |||||||||||||
| 2024-03-27 | 4 | |||||||||||||
| 2024-03-26 | 3 | |||||||||||||
| 2024-03-25 | 1 | 1 | ||||||||||||
| 2024-03-24 | 2 | 2 | ||||||||||||
| 2024-03-23 | 3 | |||||||||||||
| 2024-03-22 | 1 | |||||||||||||
| 2024-03-21 | 1 | |||||||||||||
| Calendar Date | Spillway and then Downstream, Unique TagIDs Detected | Bypass and then Downstream, Unique TagIDs Detected | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spillway (GRS) | Little Goose | Lower Monumental | Ice Harbor | McNary | John Day | Bonneville | Bypass (GRJ) | Little Goose | Lower Monumental | Ice Harbor | McNary | John Day | Bonneville | |
| YTD Total | 1 | 1 | ||||||||||||
| 2024-04-16 | 1 | |||||||||||||
| 2024-04-15 | ||||||||||||||
| 2024-04-14 | 1 | |||||||||||||