On June 29, 1956, President Dwight D. Eisenhower signed the Federal Aid Highway Act of 1956 into law, establishing a system of freeways that would later become the Interstate Highway System. Included in the system was , which was to replace US 10 and become concurrent with US 395, while bypassing Cheney. PSH 11, US 395 and I-90 were rerouted onto the future bypass in 1957. The former highway from Tyler to Four Lakes became Secondary State Highway 11H (SSH 11H) in 1961; the Cheney bypass opened on November 18, 1966. During the 1964 highway renumbering, SSH 11H became SR 904, part of the new highway system, then named the "sign routes". During STS-107, a NASA Space Shuttle mission, Lieutenant colonel Michael P. Anderson, a Cheney native, along with the rest of the "Columbia's" crew, were killed when it disintegrated during re-entry on February 1, 2003. SR 904 was posthumously renamed to the Lt. Col. Michael P. Anderson Memorial Highway in his honor later that February. The official dedication ceremony was held on August 1, 2003. Increasing traffic accidents and traffic has caused the Washington State Department of Transportation (WSDOT) to create plans to widen the roadway between Cheney and Four Lakes. The plans, later named the route development plan, calls for a five-lane highway with new intersections built on the highway.