Among of the largest locks constructed at that time, they have served commercial, fishing and pleasure boat traffic ever since. A fish ladder allows for passage of Chinook, Coho, steelhead and our world-famous Sockeye runs.
Large glass viewing screens allow visitors to view migrating fish during the appropriate seasons.
Attendees on this half-day tour will get to view the operation of the giant gates as boats are raised or lowered up to 25 feet above sea level. In addition to a local museum and film showing the history of the locks, this half-day tour will feature lectures on lock operation to manage salt water intrusion and to enhance the passage of both adult and juvenile salmon. The City operates a 90,000 acre area covering the headwaters of the Cedar River in the Cascade Mountains, southeast of Seattle. This closed watershed provides two-thirds of the water supply to Seattle and many of the surrounding communities. The City has nearly completed a Multi-Species Habitat Conservation Plan covering management activities in this watershed as well as river flow maintenance to protect endangered salmon.