Lake Washington Ship Canal, Waterway system in Seattle, United States.
The Lake Washington Ship Canal is an artificial waterway running through Seattle that connects the freshwater lake with the salt waters of Puget Sound. The route includes several canal sections and notable locks that manage water levels between the two bodies of water.
Plans for the canal emerged in the 1800s, but construction did not begin until 1911 under engineer Hiram M. Chittenden's direction. When it opened in 1917, it created a direct passage between freshwater and saltwater systems, establishing Seattle as a major shipping hub.
The canal brought together people and boats in ways that shaped Seattle's identity as a port city, making it possible for commercial vessels and sailboats to move freely between the ocean and the lake. Watching the locks operate remains a popular local activity, with crowds gathering to witness ships passing through.
The canal is visible from several public viewpoints where visitors can watch lock operations throughout the day. Early morning or evening hours tend to offer more boat traffic, making these times ideal for observing vessels passing through.
The Chittenden Locks feature a Fish Window where visitors can watch salmon moving between ocean and lake in their natural migration pattern. This viewing area reveals the canal's role in salmon passage and has become one of Seattle's most unexpected attractions.
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