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:

Kawartha Lakes Road 45

Kawartha Lakes Road 45 (also known as Monck Road) is a municipally-maintained class-3 roadway[3] located in the city of Kawartha Lakes, in the Canadian province of Ontario. The road crosses the entire city from west to east, passing through several unincorported villages along the way, Sebright, Uphill, Norland, Dongola and Kinmount. The road runs in a predominantly east–west direction and covers a distance of 50.0 kilometres (31.1 mi),[4][5] primarily rural geography.[4] Its western terminus is Kirkfield Road (Kawartha Lakes Road 6), and its eastern terminus is the Bobcaygeon Road.[5]

Prior to 1 January 1998, the Kawartha Lakes Road 45 in its entirety was designated as Secondary Highway 503. Highway 503 was commissioned in 1956,[6] loosely following the Monck Road colonization road.

Major intersections

Location Kilometre[4] Road(s) intersected Notes
Sebright 0.0 City Road 6 Western terminus of Kawartha Lakes Road 45, road continues west as County Road 45
Uphill 15.3 City Road 35 (Victoria Road) Victoria Road historic colonization trail
25.6 City Road 41 (Rush Lake Road)
Norland 34.6 Highway 35
Dongola 39.7 City Road 42 (Baseline Road)
Kinmount 49.7–49.9 City Road 121 Concurrent with City Road 121 for 0.2 kilometres.[7] Formerly Highway 121
49.9 City Road 121 (Lindsay Street) End of concurrency with Kawartha Lakes Road 121
50.0 Bobcaygeon Road Bobcaygeon historic colonization trail. Eastern terminus of Kawartha Lakes Road 45, road continues east as Peterborough County Road 503
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References