What to know before you go
- 01
It's free: there are no day-use fees. The U.S. Army Corps of Engineers runs the locks, the grounds, the fish ladder and the garden.
- 02
Locals call them the Ballard Locks. They opened in 1917, named for Major Hiram M. Chittenden, the Corps' Seattle district engineer. They hold Lake Washington and Lake Union about 20 feet above sea level, keep salt water out of the lakes and lift boats between the lakes and Puget Sound.
- 03
There are two locks, a small one and a large one 825 feet long, next to a spillway with six gates. Stand on the lock walls and watch the water lift or lower the boats.
- 04
The fish ladder has 21 steps, or weirs, and a viewing room where you can watch salmon on their way up. The Corps' best-viewing guide: sockeye June to October, best in July; chinook July to November, best in the last two weeks of August; coho August to November, best in the last two weeks of September.
- 05
The Carl S. English Jr. Botanical Garden is named for the horticulturist who worked here for 43 years. It holds more than 570 species and 1,500 varieties of plants from around the world, laid out like a romantic English landscape garden, with eight dawn redwoods to look for.
- 06
Both floors of the visitor center are accessible, and so are the fish ladder viewing room and the lock walls. A few loaner wheelchairs are first come, first served. Leashed dogs are fine outside; only service animals go indoors.
- 07
Free guided tours of the locks, the garden and the fish ladder run from May through September, and groups of eight or more can book a tour all year.
- 08
The north parking lot is small and city-run, with pay stations, so getting dropped off is easier.
- 09
Want to go through the locks on a boat? Argosy Cruises' one-way Locks Cruise runs between the downtown waterfront at Pier 54 and South Lake Union, with live narration.
Visitor center days change with the season, and salmon runs vary from year to year. Check the Corps of Engineers page before you go.