just once, between Lower Post, B.C., and Watson Lake, Yukon. The Yukon section east of here is maintained by Public Works Canada as part of the B.C. portion of Highway 97, while the B.C. section west of here is maintained by the Yukon Government as part of Yukon Highway 1. Defunct Route Numbers The first two freeways built in British Columbia were given 400-series numbers, much like the 400-Series Highways in Ontario. Highways 401 and 499 were renumbered 1 and 99 respectively in 1973. The section of Highway 37 between Terrace and Kitimat was known as Highway 25 until 1986. In recent years, many routes have been devolved to regional and/or municipal authorities and have lost their official highway status, notably the Fraser Highway in the Lower Mainland (formerly part of Highway 1A) and West Saanich Road on Vancouver Island (formerly Highway 17A). Also King George Highway through Surrey was renamed by the City in 2010 to King George Boulevard. (formerly British Columbia Highway 99A). Defunct Lettering System Prior to 1940, British Columbia classified its major roads with letters. Ultimately, in 1939 or early 1940, a decision was made by the Department of Public Works (now the British Columbia Ministry of Transportation and Infrastructure) to replace the lettering system with the familiar number system. This transition took place during the 1940/1941 fiscal year and led to the installation of route markers along multiple highways. References External links Official Numbered Routes in British Columbia (British Columbia Ministry of Transportation) Map of numbered highways in British Columbia British Columbia Highway Cams Drive BC British Columbia Highways Website British Columbia provincial highways Highways