SR 902 forms a 12-mile (19 km) loop between two interchanges on I-90, a major freeway between Seattle and Spokane that is concurrent with U.S. Route 395 (US 395) through part of Eastern Washington.

[2] Its western terminus is at I-90 exit 264, an interchange south of Clear Lake; the roadway continues east beyond the freeway to Cheney as Salnave Road.

SR 902 turns north onto Lefevre Street, which travels through the city to a junction with Brooks Road near Medical Lake High School.

[9] SR 902 passes the north end of Silver Lake and traverses a prairie on the south side of Fairchild Air Force Base.

[18] WSDOT installed centerline rumble strips to the rural sections of SR 902 in 2009 as part of safety improvements to several highways in Spokane County.

The highway was chosen due to its role as the primary access to the Washington State Veterans Cemetery; a set of signs were dedicated in March 2021.