State Route 904 begins at a diamond interchange with , concurrent with in Tyler. Traveling northeast over an unnamed creek to Babb, the highway becomes parallel with a rail line owned by BNSF Railway and used by Amtrak's Empire Builder route from Portland, Oregon to Spokane. The BNSF line is paralleled by a Union Pacific rail line while the roadway and railways enter Cheney. Within Cheney, the road is named First Street and passes Eastern Washington University. SR 904 turns north, now parallel to the Eastern Washington Gateway Railroad, at an intersection with the Cheney–Spokane Road, which was the busiest intersection on the highway, with an estimated daily average of 13,000 motorists in 2007. After the intersection, the road turns northwest to exit Cheney and intersect the old alignment of . Shortly afterwards, the roadway enters Four Lakes, passing Meadow Lake and leaving the Eastern Washington Gateway Railroad before ending at a trumpet interchange with I-90 and US 395.
History
The first state–maintained highway to serve Cheney using the present-day route of SR 904 was the Central Washington Highway, added to the state highway system in 1913. The highway served Pasco, Ritzville, Cheney and Spokane, but the segment between Cheney and Four Lakes wasn't completed until after 1919. The Central Washington Highway became in a 1923 restructuring of the highway system. Between 1933 and 1939, was extended southwest from Spokane to Pasco, via Cheney. The state roads became Primary state highways in 1937 and hence, was established to replace State Road 11. later became concurrent with US 395 and PSH 11 in 1940 after it was moved to a southern alignment. 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 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 NASASpace Shuttle mission, Lieutenat 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 StateDepartment of Transportation 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.