About the project

The Marion Street Pedestrian Bridge provides an essential connection to the Seattle Multimodal Terminal at Colman Dock, which serves nearly 5 million pedestrian passengers annually.  In addition to the Washington State Ferries which operate from Coleman Dock, the bridge provides access to Pier 48 water taxi / fast ferry passenger services, making it one of the busiest pedestrian bridges on the west coast. In 2019, the Washington State Department of Transportation (WSDOT) constructed a temporary pedestrian bridge that maintained grade separated pedestrian access during the redevelopment of the Coleman Dock and Alaskan Way following demolition of the SR-99 viaduct.  

The City of Seattle, in partnership with the WSDOT, rebuilt the Marion Street Pedestrian bridge, which was embedded in the Viaduct and originally provided railroad access.  The new bridge, which was opened in November 2023, has an expanded width to reduce congestion, adheres to Americans with Disabilities Act (ADA) accessibility requirements, features programmable lighting, seamlessly enhances the user experience between 1st Avenue and Coleman Dock along Marion Street, and was designed to consider its location in a high-seismic region.  For more information on the bridge design, see this article in Aspire Magazine.  Spanning over the completed Alaskan Way roadway, the bridge ties into the second level of the Colman Dock Entry Building and offers views out over Colman Dock and the entire waterfront. 

Watch this timelapse video that captures construction of the Marion Street Pedestrian Bridge.