Steelhead Dam Counts
Bonneville/Lower Granite Dams
2026 Adult Steelhead Count
Bonneville Dam
Mar 1 2026 - Jul 31 2026
| Date Of Count | Daily Adult Count | Total to Date This Year | Total to Date Last Year | 5 Year Average To Date |
|---|---|---|---|---|
| Mar 11 | 39 | 1,161 | 433 | 661 |
Mar 1 2026 - Jul 31 2026
Lower Granite Dam
Mar 1 2026 - Aug 17, 2026
| Date Of Count | Daily Adult Count | Total to Date This Year | Total to Date Last Year | 5 Year Average To Date |
|---|---|---|---|---|
| Mar 11 | 18 | 315 | 1,246 | 506 |
Mar 1 2026 - Aug 17 2026
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.