Ontario Highway 503

Highway 503 was a provincial secondary highway in Ontario, Canada, that existed between 1956 and 1998.^[1] Between 1956 and 1963, the highway stretched from Kirkfield to Sebright, and then along the Monck Road from Sebright to Kinmount, entirely within Victoria County. In 1964, the route was extended to Highway 121 in Tory Hill along the route of Highway 500, which was removed from the network. Its total distance of 116.8 kilometres (72.6 mi)^[2] was downloaded to the various counties in which it resided. Today the road exists as:

•  City Road 6 and  City Road 45 in the city of Kawartha Lakes
• County Road 503 in the county of Peterborough
• County Road 503 in the county of Haliburton

References

1. ^ http://www.thekingshighway.ca/MAPS/Hwy503map.htm
2. ^ http://www.thekingshighway.ca/Hwy503.htm