The Federal Building and U.S. Post Office, Spokane, Washington is a historic post office, courthouse, and custom house building located at Spokane in Spokane County, Washington. It is a courthouse for the United States District Court for the Eastern District of Washington.Building historyThe Federal Building and U.S. Post Office in Spokane, Washington, opened in October 1909. It was the first major federal building constructed in the "Inland Empire" that encompasses portions of Washington, Oregon, Idaho, and Montana. The growing city of Spokane needed a larger post office and space for Federal offices. The federal government acquired the West Riverside Avenue and Lincoln Street site in 1903 for a cost of $100,000. James Knox Taylor, Supervising Architect of the U.S. Treasury Department, designed the building in 1906 and 1907. Construction began in 1908 and was completed in 1909.President William Howard Taft visited the building just prior to its public opening in the fall of 1909. He praised the building's "simplicity, beauty and solidity" In early October, postal workers closed the old facility at Post street and Monroe Avenue and moved records and equipment to the new building in approximately two days with only minimal interruptions to patrons.