Ontario Highway 103
Ontario’s Highway 103 was a provincial road from 1944 to 1976, running about 58.3 km from Highway 12 in Waubaushene (north end) to Highway 69 in Foot’s Bay (south end).
It began as a short gravel link from Waubaushene to Port Severn (about 10.3 km) designated on July 19, 1944. In 1950, it was chosen as part of the Trans-Canada Highway route and extended west to Foot’s Bay; the paved extension opened by September 1958, with a Port Severn Bypass opening the next spring. The old Waubaushene–Port Severn sections were turned over to Tay Township in 1959.
In the mid-1960s, part of Highway 103 ran concurrently with Highway 12 between Waubaushene and Coldwater. The route then followed what are now Lake Joseph Road and Muskoka Road 169 to Foot’s Bay, where Highway 69 continued to Gravenhurst and Parry Sound.
On May 15, 1976, Highway 103 was renumbered: the southern part became part of Highway 69, and most of the rest became Highway 400. Today, the former route is largely replaced by Highway 400, with the remaining segments now designated as Lake Joseph Road, Muskoka District Road 169, and local roads in Waubaushene/Port Severn.
This page was last edited on 2 February 2026, at 13:15 (CET).