Idaho sockeye

Name: Sockeye passage at Lower Granite Dam
Creator: U.S. Army Corps of Engineers

The smallest of the counted runs by a wide margin, and the longest journey: the Salmon River is the only corridor water that reads it.

Crosses the dam through July, with the count usually complete by the end of August. More about the species.

Counts through Thu, Oct 22 · yesterdayCurrent

The Corps posts each day's count a day late. Next update tomorrow around noon Mountain.

Right now

Lower Granite is the last dam below Idaho. Fish counted there are headed for the Snake, Clearwater and Salmon systems.

No salmon or steelhead are moving past Lower Granite right now.

Sockeye: over for the year, 221 passed Lower Granite against a typical 730.Season over

When they reach this water

Antennas in the water read tagged fish as they swim past. A best guess is our estimate of the peak; fish seen are dates real fish were actually recorded. Each spot below says whether it sits on this river or on a tributary.

No arrival timing for the Sockeye yet: no PIT-tag array reads this stretch, so the run status above is Lower Granite Dam's.

Arrival timing from PIT-tag detections via PTAGIS and Columbia River DART; tagged fish are a sample of the run, never a count.

Counts by the U.S. Army Corps of Engineers via Columbia River DART.

The season

When sockeye usually cross Lower Granite, across the whole run-year, and where this year sits against it.

The dashed line is what the date usually brings at Lower Granite, the ten-year median. The solid line is this run-year so far. Passage usually peaks around Jul 16.

Past seasons

Complete run-years at Lower Granite, newest first. The run-year in progress is left out: a season still being counted is not a season total.

Sockeye totals by run-year at Lower Granite Dam
Run-year	Counted at Lower Granite
2025	1,110
2024	2,947
2023	1,566
2022	2,087
2021	645
2020	641
2019	81
2018	276
2017	229
2016	816

Where they go in Idaho

The corridor waters whose pages read a sockeye run.

Salmon River