The Lake Washington Ship Canal is a man-made waterway in Seattle, Washington. It connects Lake Washington to Puget Sound, allowing boats to travel between these two bodies of water. The canal was completed in 1916 and plays a crucial role in local transportation and commerce. The canal features several important structures, including the Ballard Locks, which help manage the water levels and allow vessels to pass between the different elevations of the lake and the sound. This engineering marvel supports both recreational boating and commercial shipping, contributing to the region's economy and accessibility.