annual maintenance schedules
WHEN ARE THE BEST TIMES TO SEE SALMON?
Fish ladder maintenance schedules carefully coordinate with both salmon migration seasons and ship traffic.
Fish Ladder Viewing Room
Salmon Education Center
Coho (Silver) - Average around 25,000 per year, peak viewing in September.
Three species of Pacific Salmon pass through the Locks during the summer months and travel 40-50 miles upriver to spawn:
Chinook (King) - Average around 10,000 per year, peak viewing in August.
(See daily and annual salmon counts
The fish ladder system is closed, drained, inspected and repaired as needed in mid-May and closed for 2 weeks or longer, check News or call visitor center for status.
Sockeye (Red) - Runs have been declining but remain the largest run. Numbers vary widely, 20,000-100,00+ per year, Peak viewing from mid-June to mid-July.