Business Loop I-90 - Ellensburg

Business Loop I-90 west in the Ellensburg, WA city center — Reassurance marker for Business Loop I-90 west at the Ellensburg city center on Main Street north between 1st and 2nd Avenues. Photo by Jeff Royston (08/29/09).

Business Loop I-90 west at University Wy in Ellensburg, WA — Business Loop I-90 turns west from Main Street onto University Way in the Ellensburg, Washington city center. This older design shield was still posted as of 2012. Photo by Mark Bozanich (05/99).

This business route forms a 5.2 mile loop from I-90 between Exits 106 and 109 along portions of old U.S. 10 and U.S. 97. Business Loop I-90 briefly overlaps with U.S. 97 east from a parclo interchange next to the Yakima River to Dolarway Road. U.S. 97 branches north from there while the business route stays east along University Way to Main Street and the Ellensburg street grid. Main Street takes the route south through the city center to Canyon Road. Canyon Road (former U.S. 97) expands the route into a five-lane commercial arterial with an array of motorist services (gas, food, lodging) to I-90.

This business loop was field-checked by Mark Bozanich in May 1999 to reveal signs throughout Ellensburg. Some of these remained as of June 2012. However, guide signs on the Interstate 90 main line omitted the route.

Updated August 1, 2026