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Idaho Fish and Game

Steelhead Dam Counts

Bonneville/Lower Granite Dams
2024 Adult Steelhead Count

Bonneville Dam

Jan 1 2025 - Dec 31 2025
Date Of Count Daily Adult Count Total to Date This Year Total to Date Last Year 5 Year Average To Date
Apr 02 14 866 1,722 1,651
Jan 1 2025 - Jun 30 2025

Lower Granite Dam

Jan 1 2025 - Dec 31, 2025
Date Of Count Daily Adult Count Total to Date This Year Total to Date Last Year 5 Year Average To Date
Apr 02 33 2,672 1,096 1,441
Jan 1 2025 - Jun 30 2025
Information

To view passage at Bonneville or Lower Granite Dam go to: Corps of Engineers Fish Reporting Site

  • Information on numbers of fish crossing the Columbia and Snake River dams is taken from data posted by the United States Army Corps of Engineers, and is updated during the counting season.
  • Counts include wild and hatchery origin fish.