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King County Courthouse Third Avenue entrance closed until January 1, 2020. Please use alternative routes.  
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The Third Avenue entrance to the King County Courthouse will be closed until further notice. The courthouse can be entered on Fourth Avenue between James and Jefferson Streets.

You can also access the courthouse from the King County Administration Building. The administration building is located directly across 4th Avenue from the courthouse (bordered by James and Jefferson Streets) and can be entered on either 4th or 5th Avenue. Once inside the administration building take the elevator down to the T (tunnel) level where you will be able to enter the courthouse.

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