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: May 25 2024 07:55:17.
2024 Lower Granite Spillway (GRS) and Bypass (GRJ) Juvenile and Adult Daily Detection Summary
Water and Fish daily averages and totals calculated from hourly timestamps in Pacific Time with daylight savings
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     49944756744888125702391231885321942248234    
2024-05-2476.464.024249.6                
2024-05-2381.769.324248.832928521511 2 2     
2024-05-2283.270.724248.74127019356916 3 9 1     
2024-05-2182.069.524249.1207391311214 2 3 2     
2024-05-2092.179.524247.71635412996 1 5 3     
2024-05-19101.880.024247.827311041015141822 22    
2024-05-18110.480.124247.838438936790953659155 8     
2024-05-17112.680.524247.95453415757533410544517 23    
2024-05-16111.781.324247.71070318113960059742231024 141    
2024-05-15109.582.324247.82049175154250714483660272 8     
2024-05-14100.081.924247.619171491812381129935222  131    
2024-05-1389.576.024248.1144460858371164    15     
2024-05-1281.068.624249.8137684656191053  1 6     
2024-05-1170.558.1242410.62955516872771761    101    
2024-05-1071.659.2242410.78886338137540   1 12     
2024-05-0973.461.0242410.532321134372411483    7     
2024-05-0874.862.4242410.2134277638214861    7     
2024-05-0776.063.524249.9210115048333015810   115     
2024-05-0673.260.7242410.43081801110312045    161    
2024-05-0569.156.7242410.714109653538224    2     
2024-05-0470.057.7242410.21060107274345225    3     
2024-05-0373.761.124249.8103996571361578    32    
2024-05-0276.864.224249.7113777541371382    8     
2024-05-0177.865.324249.411191241427365774    61    
2024-04-3085.773.124248.813941231589397619  1 6     
2024-04-2982.069.624249.1175560157961955    11     
2024-04-2882.870.524248.4132059176169685    7     
2024-04-2783.470.924248.914051301416351933    81    
2024-04-2678.065.724249.611611021429346531    12     
2024-04-2575.763.224249.97421341982378321    101    
2024-04-2473.561.1242410.2806177795464441    4     
2024-04-2373.461.0242410.11372375486648     111    
2024-04-2275.863.2242410.46051071045125291    9     
2024-04-2176.063.3242410.24111361715161161    8     
2024-04-2077.464.924249.8408114777106116    31    
2024-04-1981.268.724249.05001389871581911    21    
2024-04-1884.271.824248.74817466378452729    4     
2024-04-1791.378.624247.93982896963461528          
2024-04-1698.180.024248.289029613625041913   110     
2024-04-1587.875.224248.9454108202115398    10     
2024-04-1476.063.4242410.264210919799375    71    
2024-04-1366.253.9242411.89901386869793    9     
2024-04-1261.248.9242412.971413410765454    91    
2024-04-1162.850.4242412.43861565236022    6     
2024-04-1065.653.1242412.54052414687911    8     
2024-04-0962.349.8242412.751826245513052    72    
2024-04-0866.654.2242412.2426112400102      83    
2024-04-0763.951.6242412.32795958848      41    
2024-04-0667.755.2242411.223079130349      4     
2024-04-0561.449.0242412.62167770341      2     
2024-04-0453.641.2242416.332512331260      2     
2024-04-0341.629.1242420.84376536849      6     
2024-04-0241.56.3242498.1125133317177      61    
2024-04-0148.86.62424100.0122139329183      61    
2024-03-3147.87.62424100.258246346      41    
2024-03-3046.78.42424100.04118149      11    
2024-03-2948.78.5242499.943132       2     
2024-03-2844.98.22424100.09830        71    
2024-03-2747.28.02424100.3104134       2     
2024-03-2651.48.92424100.15263       4     
2024-03-2552.48.42424100.014811      4     
2024-03-2449.07.82424100.048722      51    
2024-03-2350.28.12424100.01523       4     
2024-03-2252.58.0242395.89 1       4     
2024-03-2144.07.92424100.1821       151    
2024-03-2044.01.97699.826        5     
2024-03-1945.02.04499.7          61    
2024-03-1841.72.455100.1 1        31    
2024-03-1740.72.15599.3 1        2     
2024-03-1640.12.155100.01         2     
2024-03-1539.81.94499.8          3     
2024-03-1433.81.555100.1          2     
2024-03-1341.22.15699.7 2        1     
2024-03-1236.42.05599.1          1     
2024-03-1139.32.05599.8                
2024-03-1038.32.06599.9          2     
2024-03-0938.02.05499.1          1     
2024-03-0839.61.95499.8          1     
2024-03-0734.71.555100.1          2     
2024-03-0643.22.165100.7          5     
2024-03-0540.02.165100.6          3     
2024-03-0444.22.05499.9          1     
2024-03-0336.41.754100.4          9     
2024-03-0245.21.965100.41         9     
2024-03-0153.12.25599.2          7     
2024-02-2940.90.0000.0                
2024-02-2841.40.0000.0                
2024-02-2749.10.0000.0                
2024-02-2639.10.0000.0          1     
2024-02-2537.40.0000.0                
2024-02-2435.80.0000.0                
2024-02-2340.50.0000.0                
2024-02-2235.20.0000.0                
2024-02-2138.70.0300.0                
2024-02-2037.70.0100.0                
2024-02-1940.30.0000.0                
2024-02-1832.30.0000.0                
2024-02-1737.60.0000.0                
2024-02-1639.70.0000.0                
2024-02-1533.70.0000.0                
2024-02-1437.90.0000.0                
2024-02-1338.90.0000.0                
2024-02-1237.20.0000.0                
2024-02-1136.90.0000.0                
2024-02-1041.10.0000.0                
2024-02-0940.80.0000.0                
2024-02-0834.00.2300.0                
2024-02-0740.10.0000.0                
2024-02-0632.712.11100.0                
2024-02-0532.512.91800.0                
2024-02-0433.814.22400.0                
2024-02-0337.715.92400.0                
2024-02-0235.916.42400.0                
2024-02-0137.012.02400.0                
2024-01-3130.99.51200.0                
2024-01-3031.39.91200.0                
2024-01-2930.79.31100.0                
2024-01-2827.36.71100.0                
2024-01-2724.54.41100.0                
2024-01-2624.54.71200.0                
2024-01-2527.22.71200.0                
2024-01-2422.33.51200.0                
2024-01-2321.33.01300.0                
2024-01-2222.32.31100.0                
2024-01-2119.21.1500.0                
2024-01-2017.82.41200.0                
2024-01-1929.40.0000.0                
2024-01-1821.10.0000.0                
2024-01-1725.40.0000.0                
2024-01-1624.70.0000.0                
2024-01-1526.20.0000.0                
2024-01-1424.90.0000.0                
2024-01-1326.10.0000.0                
2024-01-1223.70.0000.0                
2024-01-1118.00.0000.0                
2024-01-1022.13.41200.0                
2024-01-0921.02.91300.0                
2024-01-0827.90.0000.0                
2024-01-0721.00.0000.0                
2024-01-0624.60.0000.0                
2024-01-0524.00.0000.0                
2024-01-0424.70.0000.0                
2024-01-0322.80.0000.0                
2024-01-0222.40.0000.0                
2024-01-0121.90.0000.0                

Lower Granite Bypass and Spillway Juvenile Downstream Detections Summary by Species

Last Update: May 25 2024 07:55:32.

2024 Juvenile Chinook Downstream Detections
Fish daily totals calculated from hourly timestamps in Pacific Time with daylight savings
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 Total499441330163316147351828577567283386217373178
2024-05-23329174672014928  13 4
2024-05-2241215329291447031 112
2024-05-212071254719278393 11 2
2024-05-2016322422625333543 1 14
2024-05-19273137424182351109111 5
2024-05-18384343452193353894    3
2024-05-175455578501825934151  33
2024-05-16107067381452423187    6
2024-05-152049132122791501753    4
2024-05-14191745585016771493   24
2024-05-1314445861560177560  1 14
2024-05-1213762531060671841  2 1
2024-05-11295518 471155151   2 3
2024-05-108883133604155631 1124
2024-05-0932323648803537113   525
2024-05-08134267 12129285477   579
2024-05-07210148 91112434150   4 10
2024-05-06308130 1174261080   562
2024-05-05141024 821162196  1254
2024-05-04106020119826131071 2615
2024-05-03103925327458896  4466
2024-05-0211372212347714771 3756
2024-05-01111922851714341242 17513
2024-04-3013942110111415391233136712
2024-04-2917552367251735602328215
2024-04-2813202092141733591336516
2024-04-2714053214221223130213625
2024-04-2611613347367131029 11134
2024-04-2574243452710613411 31331
2024-04-248062949427317711131215
2024-04-2313724332275113729231114
2024-04-226053883372410733425  
2024-04-2141151832834136281214 2
2024-04-20408562417111142443611
2024-04-19500435511 11386146  
2024-04-18481346168 174611534 2
2024-04-1739848237 128926222 1
2024-04-1689021233 12968123  
2024-04-15454142311 21083  1  
2024-04-1464263 3  1091111  
2024-04-13990102 3  1388 1   
2024-04-127146452  1341 3   
2024-04-113865211  156111   
2024-04-104053 421 2416     
2024-04-095183  4  2623  1 1
2024-04-084262  2  11211    
2024-04-072794  1  591   1 
2024-04-06230      793  1  
2024-04-05216   2  77      
2024-04-04325   1  123      
2024-04-03437  1   65      
2024-04-02125113   1332     
2024-04-01122522   139      
2024-03-31582     24      
2024-03-3041111   1811    
2024-03-29434     131     
2024-03-28986     30      
2024-03-27104      13 1    
2024-03-26523     6 1    
2024-03-25141     8      
2024-03-2448      7      
2024-03-2315      2      
2024-03-229             
2024-03-218      2      
2024-03-202      6      
2024-03-19              
2024-03-18       11     
2024-03-17       1      
2024-03-161             
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              
2024-03-021             

2024 Juvenile Steelhead Downstream Detections
Fish daily totals calculated from hourly timestamps in Pacific Time with daylight savings
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 Total4488824145101017602472308212570319631109039250
2024-05-23525131161501  1 12
2024-05-2219364752193569 13222
2024-05-211311261921484121 5313
2024-05-20129194204693923   2
2024-05-194101413421498215311 12
2024-05-1836748333643103909912  1
2024-05-175754931195611775311    
2024-05-161139485626128600 1   1
2024-05-15154297125672507     1
2024-05-14181230625233653811    1
2024-05-138581322216914037 1   1
2024-05-1265657710128719  11  
2024-05-1168720414122668277   1 3
2024-05-1038118614254073375   114
2024-05-0943732214243084241    22
2024-05-08638352333619852141  124
2024-05-0748341 29101484330     5
2024-05-06111024 22133011231  1 27
2024-05-055352814581813038    121
2024-05-0427447134441764345  1135
2024-05-03571632343220117361  2 224
2024-05-025414153117986371  43114
2024-05-011427603410241410036542 5218
2024-04-30158980281416911039711 2515
2024-04-291579652213811145613331224
2024-04-281761481124910152692423221
2024-04-2714161141224167943511232213
2024-04-261429771427516753463389 5
2024-04-251982129734121436378111102 4
2024-04-24795130934177374641548918
2024-04-235481301238181437662634247
2024-04-221045130305525457125368104 5
2024-04-2117151263056246531615928216
2024-04-20777123353416915106513 3 2
2024-04-19987342721112915811543 2
2024-04-1863712421261761784515 5211
2024-04-176962071624841134614222 7
2024-04-1613624171792115046323 2
2024-04-15202121142511241532141 5
2024-04-14197916912611934141  
2024-04-13686207116  97422   
2024-04-121076238103  5431 1  
2024-04-1152311344  606 23  
2024-04-10468171611  79 126  
2024-04-0945511548 1130 119  
2024-04-0840019462  1023121  
2024-04-07588101 1  482 3   
2024-04-0613035  2  493     
2024-04-057034     411  1  
2024-04-0431215     606     
2024-04-0336812  1  498     
2024-04-023173     1771     
2024-04-013291     183      
2024-03-3163 1    46      
2024-03-3014      9      
2024-03-292             
2024-03-28 1            
2024-03-274             
2024-03-263             
2024-03-251      1      
2024-03-242      2      
2024-03-233             
2024-03-221             
2024-03-211             

2024 Juvenile Coho Downstream Detections
Fish daily totals calculated from hourly timestamps in Pacific Time with daylight savings
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 Total23912671645261992311023136
2024-05-2352    101      
2024-05-2216    29       
2024-05-2114 1   11       
2024-05-206   1228       
2024-05-19141 223191      
2024-05-1853    2366   1  
2024-05-17342  322110      
2024-05-16592 2 1207     1
2024-05-15144 1  168    1 
2024-05-141291  4 29    1 
2024-05-131161 22134      
2024-05-1210512 3 33      
2024-05-11176   2241      
2024-05-1040   215       
2024-05-09148   2 53      
2024-05-08865 26121      
2024-05-071581  43610    1 
2024-05-06204  13215     1
2024-05-0522  21244  1  1
2024-05-0422   3  5     1
2024-05-03572 15  8  1  1
2024-05-02381 21  2     1
2024-05-01771    24      
2024-04-3061    119 1    
2024-04-2995     15      
2024-04-28681111  5  1   
2024-04-2793 1    3      
2024-04-2653      1      
2024-04-2532111   1      
2024-04-24441     1 1    
2024-04-23481      3     
2024-04-2229      11     
2024-04-2116      16     
2024-04-20111     6      
2024-04-19191     11      
2024-04-1827      29      
2024-04-1715      28      
2024-04-1619      13      
2024-04-159      8      
2024-04-147      5      
2024-04-139      3      
2024-04-125      4      
2024-04-112      2      
2024-04-101      1      
2024-04-095      2      

2024 Juvenile Sockeye Downstream Detections
Fish daily totals calculated from hourly timestamps in Pacific Time with daylight savings
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 Total8853245448114182191    1
2024-05-231   62186      1
2024-05-223 1 65165       
2024-05-212   18365 1     
2024-05-201 1 1212       
2024-05-1983214  2      
2024-05-185910122  15      
2024-05-175446     51      
2024-05-1642235 1   102      
2024-05-153660      27      
2024-05-14352      22      
Query Notes