 In that time, several intersections along Route 287 tied in with several former state highways. During the 1928 numbering, the intersection with Route 414 in Hoytville was designated as Route 893, a local intersection in Antrim was designated as Route 961, and the intersection in Somers Lane was designated as Route 826. The routes were decommissioned in 1955, 1946, and 1941 respectively. After 1946, when a mass decommissioning of state highways occurred, Route 84 remained in place for another 15 years, when the plans arose for Interstate 84, which duplicated the state highway. Because of this duplication, Route 84 was reassigned as Route 287.
