The Hiram M. Chittenden Locks in Ballard being built in the early 1900s. The locks are part of the Lake Washington Ship Canal which stretches between Lake Washington and Shilshole Bay and officially opened July 4, 1917. Songwriting finalist performances and historical societies and other group’s displays will kick off the U.S. Army Corps of Engineers’ Hiram M. Chittenden Locks Centennial commemoration 10 a.m. to 3 p.m., February 18 through 20, 2017.