Lower Granite Bypass and Spillway Analyses

Data Courtesy of U.S. Army Corps of Engineers, NWD and Pacific States Marine Fisheries Commission

PIT Tag Lower Granite Bypass and Spillway Queries

Lower Granite Bypass and Spillway Juvenile and Adult Daily Summary

Last Update: June 05 2026 07:25:06.

2026 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
	Outflow (daily avg) kcfs	Spill (daily avg) kcfs	Spill Hours All Bays	Spill Hours Spillbay 1	Percent Spill in Spillbay 1	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
	Outflow (daily avg) kcfs	Spill (daily avg) kcfs	Spill Hours All Bays	Spill Hours Spillbay 1	Percent Spill in Spillbay 1	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						58057	8138	58859	12516	1817	72	3960	47	23		552	47
2026-06-04	52.8	40.2	24	24	20.1	166	7	118	1	14				1		1
2026-06-03	55.3	42.8	24	24	19.3	47	10	104	5	6				1		5
2026-06-02	61.1	48.5	24	24	16.9	63	14	166		3				1		1
2026-06-01	66.9	54.1	24	24	15.1	84	9	262	12	10				1		1
2026-05-31	71.5	59.0	24	24	13.6	154	15	672	14	14	1					4
2026-05-30	77.3	64.6	24	24	12.3	230	27	205	161	8						5
2026-05-29	78.3	65.6	24	24	12.4	81	22	201	3	1				2		2
2026-05-28	72.8	60.1	24	24	13.9	136	31	210	295	6						2
2026-05-27	67.8	55.1	24	24	15.2	608	49	310	7	17	2			2		7
2026-05-26	63.7	50.9	24	24	16.8	756	79	153	7	18	1	1				4
2026-05-25	57.3	44.6	24	24	18.9	609	97	301	10	23	1	1		2		11
2026-05-24	54.6	42.0	24	24	19.5	499	36	401	9	23		1				7
2026-05-23	53.9	41.1	24	17	13.8	269	16	275	3	27				2		7	1
2026-05-22	53.8	40.9	24	24	18.7	296	20	346	300	20						6
2026-05-21	59.2	46.5	24	24	16.6	201	8	441	13	12						4
2026-05-20	63.9	51.2	24	24	15.4	166	17	260	15	7				2		1
2026-05-19	71.0	58.5	24	24	13.3	197	21	401	16	8		1		3		3	1
2026-05-18	75.1	62.5	24	24	11.6	428	18	538	11	34		2				3
2026-05-17	83.2	70.6	24	24	10.8	298	92	518	17	13		1				4
2026-05-16	88.9	76.2	24	24	9.7	521	88	490	931	17	1	5	1	2		3
2026-05-15	96.9	83.8	24	24	8.7	397	121	697	30	25	2	12		1		4
2026-05-14	105.9	82.3	24	24	9.5	545	131	981	709	51	2	99	3			8	1
2026-05-13	96.7	81.1	24	24	9.6	808	170	923	64	17	3	361	19	3		9
2026-05-12	91.5	78.7	24	24	10.0	601	55	381	420	20	1	1015	10			8
2026-05-11	88.8	76.2	24	24	10.2	602	52	2072	26	53	2	2221	10			8	1
2026-05-10	86.9	74.4	24	24	10.5	910	52	1703	481	42		240	4			11
2026-05-09	87.4	74.7	24	16	6.9	1796	41	2155	29	104	2					7
2026-05-08	87.9	75.4	24	24	10.6	3729	77	1710	445	106	3					1
2026-05-07	82.9	70.2	24	22	10.3	4685	54	3751	78	138	8					14
2026-05-06	80.4	67.8	24	24	11.4	2425	101	1465	781	120	4					10
2026-05-05	76.3	63.1	24	24	12.4	2607	75	1607	29	151	1					16	1
2026-05-04	67.6	54.8	24	24	13.9	2925	43	1384	40	181	1					15
2026-05-03	66.7	54.2	24	24	14.5	3753	40	936	37	122	2					6
2026-05-02	69.2	56.6	24	24	13.4	2316	47	463	614	29						8
2026-05-01	69.6	56.7	24	24	13.5	1769	32	343	33	39						4
2026-04-30	72.1	59.5	24	24	13.4	1930	74	566	567	44	1					9
2026-04-29	74.8	62.3	24	24	13.0	1145	70	1046	45	29	3					8
2026-04-28	75.2	62.7	24	24	13.1	1121	91	1191	566	34						7	1
2026-04-27	79.8	67.1	24	24	11.4	1257	145	783	70	20						6
2026-04-26	81.0	68.5	24	24	11.2	1271	268	3005	613	28						11
2026-04-25	85.7	73.1	24	24	9.9	1616	73	1377	93	24						6	1
2026-04-24	92.7	79.9	24	24	9.2	1258	233	4953	970	33						7
2026-04-23	93.9	80.1	24	24	9.8	809	86	2459	98	9						15
2026-04-22	74.6	61.9	24	24	12.3	644	116	850	137	8						5
2026-04-21	71.3	58.5	24	24	13.2	742	111	2145	106	10						3
2026-04-20	68.6	55.8	24	24	14.3	846	150	897	72	5						9
2026-04-19	68.6	55.8	24	24	14.6	878	187	526	32	6						2
2026-04-18	72.7	59.9	24	24	13.7	735	152	341	47	5	1					4
2026-04-17	76.9	64.2	24	24	12.6	487	123	906	60	6	1					4	1
2026-04-16	82.0	69.2	24	24	11.8	573	465	1401	539	1	1					8
2026-04-15	76.1	63.3	24	17	8.8	646	113	698	55							7	1
2026-04-14	78.3	65.5	24	24	11.8	566	75	811	53	4						7
2026-04-13	75.6	63.0	24	24	12.0	840	66	654	49	1	1					10
2026-04-12	70.8	58.2	24	24	13.6	525	47	1423	45	2	1					3	1
2026-04-11	63.8	51.4	24	24	15.5	508	61	1127	64	2	1					6
2026-04-10	66.2	53.7	24	24	14.9	444	54	305	32	2						12	1
2026-04-09	66.3	53.9	24	24	15.5	382	29	378	49	2	1					9
2026-04-08	64.0	51.4	24	24	15.6	251	34	661	47	1						9
2026-04-07	64.1	51.6	24	24	14.7	314	17	1162	58							2
2026-04-06	66.4	54.0	24	24	14.1	320	22	229	21							8
2026-04-05	67.2	54.8	24	24	13.8	233	34	83	15	2						4
2026-04-04	71.7	59.0	24	24	13.3	118	29	67	17	3						6
2026-04-03	73.8	60.5	24	24	13.0	104	47	121	61	1						5
2026-04-02	69.5	7.9	24	24	99.7	233	545	121	312		2					3	2
2026-04-01	68.3	8.0	24	24	99.9	264	534	224	337	9	1					6	1
2026-03-31	74.7	8.2	24	24	100.0	344	530	496	446	15	1					3
2026-03-30	79.2	9.1	24	24	100.2	147	394	442	557	7	6					6	1
2026-03-29	73.0	9.7	24	24	100.0	246	344	359	431	22	8					7	4
2026-03-28	74.7	8.9	24	24	100.0	120	299	55	124	3	2					5	3
2026-03-27	84.7	8.9	24	24	100.0	85	184	24	16		2					7	2
2026-03-26	81.7	9.7	24	24	99.9	28	163	5	6		2					4	3
2026-03-25	69.1	8.9	24	24	100.0	81	173	3	6							5	4
2026-03-24	70.3	9.4	24	24	100.2	115	95	10	5							5
2026-03-23	73.9	8.8	24	24	100.0	90	52	3	5							1
2026-03-22	78.2	9.2	24	24	100.0	41	46	4	4							3	1
2026-03-21	61.2	9.2	24	24	100.1	23	18	3	3							13
2026-03-20	61.4	0.0	1	1	22.0		13		8
2026-03-19	66.3	1.9	6	6	100.1		1		3							4
2026-03-18	59.7	0.0	0	0	0.0		2		7								1
2026-03-17	64.4	2.1	5	5	99.5		5	1	7							1	3
2026-03-16	66.6	0.0	0	0	0.0		1	1	2								1
2026-03-15	94.1	2.0	6	5	99.8				5							2	3
2026-03-14	92.3	0.0	0	0	0.0				3								3
2026-03-13	64.9	0.0	0	0	0.0				1
2026-03-12	48.9	2.1	6	5	100.4				1							3	2
2026-03-11	45.7	0.0	0	0	0.0
2026-03-10	39.2	1.9	6	5	100.5											11
2026-03-09	42.6	0.0	0	0	0.0
2026-03-08	38.4	2.0	5	5	100.1											16
2026-03-07	38.8	0.0	0	0	0.0
2026-03-06	40.7	0.0	0	0	0.0
2026-03-05	43.7	1.8	5	5	100.1											8
2026-03-04	34.7	0.0	0	0	0.0
2026-03-03	34.1	1.9	5	4	100.2											8
2026-03-02	34.3	0.0	0	0	0.0
2026-03-01	34.2	2.0	6	5	99.6											29
2026-02-28	42.1	0.0	0	0	0.0
2026-02-27	43.5	0.0	0	0	0.0
2026-02-26	43.3	0.0	0	0	0.0
2026-02-25	34.6	0.0	0	0	0.0
2026-02-24	36.1	0.0	0	0	0.0
2026-02-23	33.2	0.0	0	0	0.0
2026-02-22	27.8	0.0	0	0	0.0
2026-02-21	29.2	0.0	0	0	0.0
2026-02-20	32.0	0.0	0	0	0.0
2026-02-19	36.4	0.0	0	0	0.0
2026-02-18	27.2	0.0	0	0	0.0
2026-02-17	40.7	0.0	0	0	0.0
2026-02-16	30.7	0.0	0	0	0.0
2026-02-15	31.6	0.0	0	0	0.0
2026-02-14	33.7	0.0	0	0	0.0
2026-02-13	28.5	0.0	0	0	0.0
2026-02-12	30.6	0.0	0	0	0.0
2026-02-11	28.1	0.0	0	0	0.0
2026-02-10	31.5	0.0	0	0	0.0
2026-02-09	37.0	0.0	0	0	0.0
2026-02-08	29.7	0.0	0	0	0.0
2026-02-07	32.0	0.0	0	0	0.0
2026-02-06	26.9	0.0	0	0	0.0
2026-02-05	29.2	0.0	0	0	0.0
2026-02-04	26.7	0.0	0	0	0.0
2026-02-03	32.9	0.0	0	0	0.0
2026-02-02	30.8	0.0	0	0	0.0
2026-02-01	30.4	0.0	0	0	0.0
2026-01-31	34.4	0.0	0	0	0.0
2026-01-30	33.0	0.0	0	0	0.0
2026-01-29	30.7	0.0	0	0	0.0
2026-01-28	35.1	0.0	0	0	0.0
2026-01-27	35.1	0.0	0	0	0.0
2026-01-26	30.1	0.0	0	0	0.0
2026-01-25	34.9	0.0	0	0	0.0
2026-01-24	34.7	0.0	0	0	0.0
2026-01-23	35.5	0.0	0	0	0.0
2026-01-22	36.4	0.0	0	0	0.0
2026-01-21	40.9	0.0	0	0	0.0
2026-01-20	39.7	0.0	0	0	0.0
2026-01-19	40.4	0.0	0	0	0.0
2026-01-18	41.8	0.0	0	0	0.0
2026-01-17	41.7	0.0	0	0	0.0
2026-01-16	44.8	0.0	0	0	0.0
2026-01-15	42.6	0.0	0	0	0.0
2026-01-14	43.2	0.0	0	0	0.0
2026-01-13	45.0	0.1	2	2	57.8
2026-01-12	46.9	0.0	0	0	0.0
2026-01-11	43.1	0.0	0	0	0.0
2026-01-10	48.8	0.0	0	0	0.0
2026-01-09	51.2	0.0	0	0	0.0
2026-01-08	51.0	0.0	0	0	0.0
2026-01-07	45.8	0.0	0	0	0.0
2026-01-06	48.9	0.0	0	0	0.0
2026-01-05	51.4	0.0	0	0	0.0
2026-01-04	44.3	0.0	0	0	0.0
2026-01-03	46.7	0.0	0	0	0.0												1
2026-01-02	41.9	0.0	0	0	0.0												1
2026-01-01	40.4	0.0	0	0	0.0

Lower Granite Bypass and Spillway Juvenile Downstream Detections Summary by Species

Last Update: June 05 2026 07:25:15.

2026 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
Calendar Date	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	58057	1095	343	478	538	280	2816	8138	620	140	164	181	114	208
2026-06-04	166	3	2	1		9	4	7	1				2
2026-06-03	47	8		2	1	9	4	10	1
2026-06-02	63	4	3	2			1	14		1
2026-06-01	84	7	7	2			2	9
2026-05-31	154	9	3	2			2	15	3
2026-05-30	230	34	5	3			1	27	1	1	1			1
2026-05-29	81	25	5	3	1		3	22		1
2026-05-28	136	23	1	3	1		2	31	1			1
2026-05-27	608	6		2	1	2	5	49
2026-05-26	756	3			1	4	3	79
2026-05-25	609	2	1	1	3	3	3	97				1
2026-05-24	499	6	2	5	1	4	1	36		1
2026-05-23	269	12	2	3	6	1	6	16	2
2026-05-22	296	6	3	5	4	1	7	20
2026-05-21	201	5	4	7		5	6	8	1
2026-05-20	166	11	2	3	4		16	17	1	1
2026-05-19	197	11	6	2	5	5	27	21			1
2026-05-18	428	16	2	4		4	75	18	1					1
2026-05-17	298	17	8	7	7	6	153	92	4					1
2026-05-16	521	30	3	4	2	5	218	88	2	1	1			2
2026-05-15	397	49	3	1	11	2	243	121	1					3
2026-05-14	545	28	4	7	20	7	340	131				1		6
2026-05-13	808	17	1	15	20	12	348	170	1	1
2026-05-12	601	11		19	11	8	193	55						1
2026-05-11	602	11	21	40	30	4	120	52			1			2
2026-05-10	910	26	17	22	26	5	107	52	1
2026-05-09	1796	63	22	37	20	4	53	41						4
2026-05-08	3729	33	11	29	15	5	88	77	1	1				7
2026-05-07	4685	48	5	14	15	8	92	54	1			2		6
2026-05-06	2425	26	4	8	27	8	95	101			1		2	8
2026-05-05	2607	20	4	5	25	8	97	75	1		1		2	12
2026-05-04	2925	6	4	7	15	11	91	43	1	1		1	4	17
2026-05-03	3753	8	7	5	18	12	55	40			1	3	4	9
2026-05-02	2316	14	5		40	9	35	47	1	1	1	6	3	3
2026-05-01	1769	16	5	2	12	10	49	32	2	1		2	4	6
2026-04-30	1930	15		6	12	11	52	74	1		1	3		3
2026-04-29	1145	34	6	8	7	4	21	70	1		1	2	1	1
2026-04-28	1121	23	7	7	7	5	28	91			2	2	1	4
2026-04-27	1257	14	12	6	13	8	19	145	4	2	1	1	3	3
2026-04-26	1271	15	6	3	14	7	31	268	6	3	1	4	1	9
2026-04-25	1616	31	3	6	11	7	28	73	3			2	3	11
2026-04-24	1258	19	4	8	14	7	35	233	11	1			4	21
2026-04-23	809	2	1	7	11	13	14	86	1			2	5	8
2026-04-22	644	4	1	12	10	11	6	116	3		3	2	14	8
2026-04-21	742	4	7	15	9	1	4	111	1	2	3		6	9
2026-04-20	846	9	2	10	9	3	2	150	2		3	5	4	4
2026-04-19	878	10	5	17	9	1	3	187	1	1	3	8	10	5
2026-04-18	735	6	14	5	12	1	3	152		2		4	5	10
2026-04-17	487	6	25	10	4	1	2	123	1	3		3	3	6
2026-04-16	573	14	6	8	1			465	1	2	3	6	5
2026-04-15	646	13	3	2	4		1	113	3		3	10	3	4
2026-04-14	566	9	2	6	3		1	75	4	3	11	6
2026-04-13	840	3	1	4	4		2	66		3	19	15	1	2
2026-04-12	525	5	3	7	3			47	2	3	14	7		2
2026-04-11	508		7	11	1			61	3	8	15	7	1	1
2026-04-10	444	6	3	7	7	1	1	54	3	1	8	11	3
2026-04-09	382	1		7	4	3	2	29	5	3	17	25	4	1
2026-04-08	251	1		6	6	3		34	5	6	13	14	2	2
2026-04-07	314	6	2	7	7	3	3	17	6	13	13	9	2	1
2026-04-06	320	5	5		3		3	22	8	4	1	3	2
2026-04-05	233	9	3		3	2	3	34	24	2	2	3	3
2026-04-04	118	12	2	1	4	4	2	29	17	6	1	4		1
2026-04-03	104	12	4		1	1		47	31	6	2	3	1
2026-04-02	233	56	7	5	1	4	2	545	133	24	5	2	2
2026-04-01	264	46	13	3		3	1	534	136	16	4	1	1	1
2026-03-31	344	32	2	5	2	2	1	530	87	7	1		2	1
2026-03-30	147	9	5			2	1	394	35	3	1		1	1
2026-03-29	246	24	4			1		344	25	2	1
2026-03-28	120	4	3	1				299	12	1	1
2026-03-27	85	4	2	4				184	6		1
2026-03-26	28	7	1	1				163	2
2026-03-25	81	5		1				173	6	1	2
2026-03-24	115	3						95	3	1
2026-03-23	90	3						52
2026-03-22	41							46
2026-03-21	23							18
2026-03-20								13
2026-03-19								1
2026-03-18								2
2026-03-17								5
2026-03-16								1

2026 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
Calendar Date	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	58859	2091	917	1217	506	765	3638	12516	635	139	124	314	78	161
2026-06-04	118	5	2	2	1		22	1
2026-06-03	104	4	5			1	41	5						1
2026-06-02	166	3	5	2		1	19				1
2026-06-01	262	1	1	2	1		12	12
2026-05-31	672	2	3	2			10	14
2026-05-30	205	4	2	4	1	2	2	161						1
2026-05-29	201	2	3	3	5		8	3				1
2026-05-28	210	9	2	5		2	18	295
2026-05-27	310	7	6	5	4		11	7
2026-05-26	153	4	2	11	4	1	10	7			3
2026-05-25	301	6	2	4			16	10
2026-05-24	401	8	4	3	3		26	9	1			1		1
2026-05-23	275	9	6	12	3	5	16	3	1	1
2026-05-22	346	10	7	3	1	5	21	300
2026-05-21	441	4	4	9		10	35	13
2026-05-20	260	8	9	15		7	80	15
2026-05-19	401	8	12	14		20	132	16		1
2026-05-18	538	7	19	14	3	33	155	11
2026-05-17	518	18	13	13	4	27	131	17	1				2	1
2026-05-16	490	39	11	16	8	15	190	931	1	1
2026-05-15	697	53	8	26	8	24	71	30
2026-05-14	981	40	19	41	7	22	176	709			1			2
2026-05-13	923	28	17	24	6	18	128	64						1
2026-05-12	381	24	16	28	6	11	47	420		1			1	1
2026-05-11	2072	51	39	93	9	8	62	26			1	1		3
2026-05-10	1703	40	31	57	1	13	81	481			1	1		2
2026-05-09	2155	83	28	22	6	14	77	29	2		1			2
2026-05-08	1710	61	15	20	4	12	109	445			3		1	2
2026-05-07	3751	63	8	14	4	26	175	78	1		1		1	3
2026-05-06	1465	37	8	23	9	44	156	781			2	2	3	2
2026-05-05	1607	30	18	31	9	43	182	29	1	1		1	2	5
2026-05-04	1384	12	20	32	4	76	164	40		1		1	6	4
2026-05-03	936	19	25	31	18	49	234	37						8
2026-05-02	463	48	26	46	24	31	105	614					2	6
2026-05-01	343	62	29	31	13	29	160	33	2		2	1	3	12
2026-04-30	566	51	25	34	7	36	118	567			1			9
2026-04-29	1046	132	34	65	7	20	78	45	3		1	1	1	7
2026-04-28	1191	83	41	49	8	19	103	566	1	2	3	3	2	14
2026-04-27	783	47	29	36	7	19	78	70	3		2	4	6	2
2026-04-26	3005	46	40	35	14	10	33	613	2	2	3	7	3	3
2026-04-25	1377	48	24	13	10	11	74	93	1	2	2	4	1	2
2026-04-24	4953	57	18	24	9	11	76	970	1	3	2	6	1	6
2026-04-23	2459	16	13	26	7	16	55	98	1	4	5	6	4	6
2026-04-22	850	25	15	14	18	16	20	137	1	5	1	13	6	3
2026-04-21	2145	26	27	20	15	6	38	106	3	3	3	7	3	2
2026-04-20	897	27	15	38	11	8	17	72	3		3	9	1	1
2026-04-19	526	30	11	39	15	13	22	32	12	1	8	7	2	3
2026-04-18	341	20	22	31	20	6	14	47	5	3		11	2	3
2026-04-17	906	13	46	20	6		2	60	9	6	1	5	2	4
2026-04-16	1401	23	17	17	7	3	7	539	10	2	4	5	3	1
2026-04-15	698	45	8	12	9	2	4	55	29	1	3	6	3	8
2026-04-14	811	24	10	11	5	4	6	53	11	3	3	12	2	7
2026-04-13	654	23	7	8	5	1	8	49	10	3	3	2		6
2026-04-12	1423	23	9	7	8	2		45	21	3	6	7	1	8
2026-04-11	1127	24	5	4	8	3	2	64	9	1	6	9	2	1
2026-04-10	305	38	1	3	22	3		32	12	5	2	29	1
2026-04-09	378	22	4	4	39	1		49	12	7	3	51	3	2
2026-04-08	661	13	3	9	23	3	1	47	14	4	4	28	2
2026-04-07	1162	6	5	12	35	2		58	12	4	6	49	3
2026-04-06	229	22	4	8	10			21	25	3	3	7
2026-04-05	83	23	5	10	6	1		15	24	4	11	4		2
2026-04-04	67	27	7	4	6			17	32	7	4	7		2
2026-04-03	121	71	9	1	1			61	56	9		3		1
2026-04-02	121	131	22	3	2			312	123	21	2	1	2
2026-04-01	224	86	10					337	101	6	1			1
2026-03-31	496	44	1					446	51		1		1
2026-03-30	442	9	1	1				557	7		1	2
2026-03-29	359		2					431	2	1	4
2026-03-28	55		1	1				124		2	3
2026-03-27	24	4						16	1	7	1
2026-03-26	5	2						6	1	3	2
2026-03-25	3		1					6	1	2
2026-03-24	10	1						5	3	1
2026-03-23	3							5	6	1
2026-03-22	4							4	1
2026-03-21	3							3	3
2026-03-20								8	2
2026-03-19								3		1
2026-03-18								7
2026-03-17	1							7	1	1
2026-03-16	1							2
2026-03-15								5
2026-03-14								3
2026-03-13								1
2026-03-12								1

2026 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
Calendar Date	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	1817	20	5	8	3	3	137	72	1
2026-06-04	14
2026-06-03	6	1					2
2026-06-02	3
2026-06-01	10
2026-05-31	14						1	1
2026-05-30	8						1
2026-05-29	1	1
2026-05-28	6
2026-05-27	17	1						2
2026-05-26	18							1
2026-05-25	23							1
2026-05-24	23
2026-05-23	27	1					1
2026-05-22	20	1
2026-05-21	12	2				1
2026-05-20	7	1					2
2026-05-19	8						7
2026-05-18	34						7
2026-05-17	13						11
2026-05-16	17				1		19	1
2026-05-15	25	2		1	1		16	2
2026-05-14	51	1					21	2
2026-05-13	17						19	3
2026-05-12	20	1		1		1	6	1
2026-05-11	53	2	2			1	4	2
2026-05-10	42	1	1	3			1
2026-05-09	104	1	1	2			3	2
2026-05-08	106						2	3
2026-05-07	138	1					5	8
2026-05-06	120							4
2026-05-05	151						6	1
2026-05-04	181			1			1	1
2026-05-03	122						1	2
2026-05-02	29
2026-05-01	39
2026-04-30	44							1
2026-04-29	29							3
2026-04-28	34
2026-04-27	20
2026-04-26	28
2026-04-25	24				1		1
2026-04-24	33
2026-04-23	9
2026-04-22	8
2026-04-21	10
2026-04-20	5
2026-04-19	6
2026-04-18	5							1
2026-04-17	6							1
2026-04-16	1							1
2026-04-15
2026-04-14	4
2026-04-13	1							1
2026-04-12	2							1
2026-04-11	2							1
2026-04-10	2
2026-04-09	2		1					1
2026-04-08	1
2026-04-07
2026-04-06		1
2026-04-05	2
2026-04-04	3	2
2026-04-03	1
2026-04-02								2	1
2026-04-01	9							1
2026-03-31	15							1
2026-03-30	7							6
2026-03-29	22							8
2026-03-28	3							2
2026-03-27								2
2026-03-26								2

2026 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
Calendar Date	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	3960	21	10	9	16	8	84	47
2026-05-26	1
2026-05-25	1					1
2026-05-24	1	1				1	1
2026-05-23					1
2026-05-22							3
2026-05-21		1			1		4
2026-05-20		1	1		4		5
2026-05-19	1				3	2	22
2026-05-18	2		1	1	2	1	29
2026-05-17	1	2		1	1	2	20
2026-05-16	5		3	4	1	1		1
2026-05-15	12	8	2		3
2026-05-14	99	5	2	2				3
2026-05-13	361	1	1	1				19
2026-05-12	1015	2						10
2026-05-11	2221							10
2026-05-10	240							4

Query Notes

DART PIT Tag and ESU Metadata & Glossary