PTH 83A branches off from
PTH 83 south of Swan River, becoming Centennial Drive once it enters the town limits. The highway then turns right on to Main Street southwest of the town centre and meets
PTH 10A (4th Ave.) about 40 metres later (the original northbound terminus for PTH 83 was at this intersection). The two highways run in concurrence through the town centre along Main Street until they terminate at
PTH 10 (
Northern Woods and Water Route) and the current northbound terminus for PTH 83. On the route, the speed limit is mainly 50 km/h, and 80 km/h approaching PTH 83 on the south side. ==History==