Pennsylvania Route 184 (PA 184, designated by the Pennsylvania Department of Transportation as SR 184) is an 9.68-mile-long (15.58 km) state highway located in Lycoming County in Pennsylvania. The western terminus is at PA 287 in Brookside. The eastern terminus is at Steam Mill Road, just after an interchange with U.S. Route 15 (US 15) in Steam Valley, a hamlet in Cogan House Township. The route was first designated as a spur from PA 84 in Brookside to US 15 via Cogan House Road. (PA 84 was renumbered to PA 287 in 1961.[2]) Construction to upgrade US 15 several miles each way from its intersection with PA 184 to interstate standards included a new interchange with PA 184.