The West Spokane Street Bridge crossed the Duwamish River from Harbor Island to West Seattle. "Spokane Street" has long been used as designation for the streets running along the latitude of the current West Seattle Bridge. Before any permanent bridge was built along the line of Spokane Street, there had been three temporary bridges, built , , and . The first one was basically a swinging gate in what had been primarily built as a water main; the second was a swing bridge that also carried a water main, and the third was a swing bridge after the water main had been rerouted elsewhere.
