British Columbia Highway 1A
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There are many roads in the southwestern part of British Columbia and Vancouver Island that were designated as Highway 1A. These roads were sections of the original 1941 route of Highway 1 before its various re-alignments, and are used today as service routes and frontage roads. The "B.C. Highway 1A" designations were removed from these sections by the province between 2005 and 2010, although signage remains along some of the route and the designation on some maps.
- Vancouver Island
A 16 km (10 mi) long segment of highway in the area of Victoria was designated as 1A. It started in Victoria at the intersection of Hillside Avenue and Government Street, following Gorge Road west for 5 km (3 mi) until it reached an intersection at Admirals Road, just across the Craigflower Bridge into Esquimalt. Highway 1A then proceeded west along the Old Island Highway for 5 km (3 mi) to a junction with Highway 14 at Goldstream Avenue. Highway 1A turned onto Goldstream Avenue and proceeded west for 6 km (4 mi) to its termination at Highway 1 just short of Goldstream Provincial Park. This route was the original Island Highway prior to the opening of the existing Trans-Canada Highway route in 1955 and 1956.
A 17 km (11 mi) long segment of highway near Crofton and Chemainus carries the 1A designation. It starts in the south at the intersection of Highway 1 and Mount Sicker Road. The Highway follows Mount Sicker Road and Chemainus Road east for 2 km (1¼ mi) to an intersection with Crofton Road. Chemainus Road and Highway 1A turns northwest, and goes for 15 km (9 mi) through Chemainus to an intersection with Roland Lane, then subsequently turns west-southwest to meet the Trans-Canada Highway just south of Ladysmith 60 m (200 ft) later, where the second 1A loop terminates. This route was the original Island Highway prior to the opening of the existing Trans-Canada Highway, which by-passes the Chemainus area, in 1950.
- Lower Mainland
A 4 km-long (2½ mi) segment of road between West Vancouver and Vancouver also has the 1A designation. It begins in the north by sharing the alignment with Highway 99 from the Highway 1 interchange at Taylor Way over the Lions Gate Bridge and becoming the Stanley Park Causeway which terminates at the edge of Stanley Park to become Georgia Street.
It formerly shared a 28 km (17 mi) alignment with Highway 99A from the Stanley Park Causeway and the West End and Downtown Vancouver all the way to 98 Avenue in Surrey via West Georgia Street, Seymour Street, Main Street, Kingsway, 10th Avenue, McBride Boulevard, the Pattullo Bridge and King George Boulevard (formerly and still known as the King George Highway) at which point Highway 1A diverged east. East of the diverge, Highway 1A was known locally as the Fraser Highway. The two- and four-lane highway went southeast for 9 km (5 mi) to its junction with Highway 15 in Surrey, then continued southeast for 5 km (3 mi) to a junction with Highway 10 in Langley. Another 15 km (9 mi) southeast and Highway 1A reached an intersection with Highway 13 at Aldergrove. 9 km (5 mi) east of the Highway 13 junction, the 1A segment finally terminated at an interchange with Highway 1 just west of Abbotsford (Exit 83).
The Chilliwack-Rosedale Yale Road East section ran from the Trans-Canada Highway at the Vedder Road crossing (Exit 119), through Chilliwack, Cheam and Rosedale, and reconnecting to the Trans-Canada Highway along with Highway 9 (Exit 135). This section of what was originally the Yale Road was part of the original Trans-Canada Highway route until the completion of the "401" Freeway section in the 1960s.
- Vancouver Island
Since 1941, Highway 1A went from Victoria to Kelsey Bay. It ended at the wharf. By 1960, highway one ended at Nanaimo's Departure Bay Ferry terminal.
Until the Highway 1 Freeway (originally the "401") was built in the mid 1960s, much of the Fraser Highway was part of the Trans-Canada Highway. It was built along the route of Old Yale Road, which was first built in 1874 between Yale and New Westminster. The Fraser Highway route was designated as Hwy. 1 from 1941 to 1972 while the new Freeway was designated as Hwy. 401 until 1972. In 1973, the Freeway route became Hwy. 1 while the Fraser Highway became Hwy. 1A. With the decommissioning of the "B.C. Highway 1A" designation, the original Trans-Canada Highway route is now known merely as the Fraser Highway (Surrey to Abbotsford) and Yale Road West/East (through Chilliwack and Rosedale). In 2005, the City of Chilliwack posted signage along the Yale Road East section designating it as the "Trans-Canada Parallel Route".
||This section contains a table that is missing kilometre posts for one or more junctions. Please help by .|
|Becomes Taylor Way, Marine Drive|
|Metro Vancouver||West Vancouver||Park Royal Shopping Centre parking access||Southbound only|
|Lions Gate Bridge over Burrard Inlet, and then becomes Stanley Park Causeway|
|Vancouver||Stanley Park Drive||3-lane road (centre lane reversible); no southbound entrance; closed during PM peak hours|
|Pipeline Road, Stanley Park Drive||3-lane road (centre lane reversible); northbound exit, southbound entrance only|
|Becomes Georgia Street|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi