The Vancouver Island branch of Highway 1, known locally as the Island Highway (a name shared with Highway 19), is the main thoroughfare on the south Island. The highway was first given the "1" designation in 1941, and originally went between Victoria and Kelsey Bay, a small coastal community north of Campbell River. Highway 1 on the Island was shortened to terminate in the downtown core of the city of Nanaimo in 1953, with the section north of Nanaimo being re-numbered 19. When the ferry route between Departure Bay in Nanaimo and Horseshoe Bay in West Vancouver was taken over by BC Ferries in 1961, Highway 1 on the Island was extended to the Departure Bay ferry dock.
From the southern entrance to Goldstream park, the Malahat section of the highway, which is known for its steep grades, goes north for 20 km (12 mi), becoming three lanes on its exit from Goldstream park and passing through the community of Malahat proper en route, until it reaches the community of Mill Bay. North of Mill Bay, Highway 1 once again widens out into four lanes. The highway travels north for 29 km (18 mi), past a junction to Shawnigan Lake and the communities of Cobble Hill, Cowichan Bay and Duncan before reaching a junction with Highway 18. The highway then proceeds north for 10 km (6 mi) to a junction with Chemainus.
From the Chemainus junction, Highway 1 travels 11 km (7 mi) northwest into the city of Ladysmith, and northwest for another 13 km (8 mi) to a junction with the community of Cassidy. 6 km (4 mi) north of the Cassidy junction, Highway 1 enters the city of Nanaimo, where Highway 19 merges onto the highway from the B.C. Ferry terminal at Duke Point. 2 km north (1¼ mi), Highway 1 and Highway 19 split off at a junction with Cedar Road. Highway 19 proceeds west, while Highway 1 continues north. Highway 1 proceeds through the city of Nanaimo for 8 km (5 mi) north to the B.C. Ferry terminal at Departure Bay, where the Island section of Highway 1 terminates.
The Trans-Canada Highway then enters Departure Bay proper via ferry, turning east-northeast to enter the Strait of Georgia just north of Newcastle Island. The downtown core of Vancouver is visible from the ferry as it approaches the entrance to Howe Sound. Highway 1 turns north-northeast just west of Passage Island to enter Queen Charlotte Channel, then rounds the Whytecliff Peninsula to enter the Horseshoe Bay ferry terminal, 57 km (30 nmi) from the Departure Bay dock.
Like its Island section, the Highway on the Lower Mainland was first given the "1" designation in 1941. Highway 1's original alignment started out within the city limits of Vancouver, and followed Kingsway from Vancouver to Surrey, and then went along the Fraser Highway to Clearbrook. From Chilliwack, the highway originally went to Rosedale, which is a community just east of Chilliwack, along Yale Road, then along Flood-Hope Road to where it picks up its current alignment just across the Fraser River from Hope.
In 1959, Highway 1 was given an extension from within Vancouver to Horseshoe Bay by way of the Lions' Gate Bridge and Taylor Way in West Vancouver. In 1962, the section between Clearbrook and Chilliwack was re-routed to a new expressway.
In 1964, the Clearbrook-Rosedale section of Highway 1 was restored to its original alignment. Also in that year, a new expressway, originally designated as Highway 401, opened up on Highway 1's current alignment between West Vancouver and Rosedale. The expressway became part of Highway 1 in 1973.
In 1986, Highway 1 between Chilliwack and Hope was improved to a freeway. Through the 1990s, all signals and intersections on Highway 1 through Greater Vancouver were removed, making the entire section of Highway 1 between Horseshoe Bay and Hope a freeway.
Highway 1's total length in the Lower Mainland is 170 km (106 mi) long. On the mainland, the highway begins at the Horseshoe Bay ferry terminal in West Vancouver. From here to the Ironworkers Memorial Second Narrows Crossing, the highway is known locally as the Upper Levels Highway. There are nine interchanges on the 14 km (9 mi) stretch of the Highway within West Vancouver. The first interchange east of Horseshoe Bay brings Highway 99 onto a common alignment with Highway 1. After Taylor Way, where Highway 99 takes the exit off Highway 1, the highway then crosses over the Capilano River into the District of North Vancouver. Highway 1 travels for 9 km (6 mi) through the District and the City of North Vancouver, passing through seven interchanges, until crossing the 1292 m (4239 ft) long Ironworkers Memorial Second Narrows Crossing over the Burrard Inlet into Vancouver. (The bridge, previously known as the Second Narrows Bridge, was renamed to honour the 27 workers who lost their lives during its construction.)
The 4 km (2½ mi) long stretch of Highway 1 through the eastern part of Vancouver is the only freeway within Vancouver's city limits. In Vancouver, Highway 1 travels through the Cassiar Tunnel and passes through three interchanges before crossing into Burnaby at the interchange with Boundary Road. The Burnaby stretch of Highway 1 is 11 km long (7 mi), and goes through four interchanges before proceeding into Coquitlam. The Coquitlam stretch of Highway 1 lasts 7 km (4 mi), with two interchanges along its length. The easternmost interchange on Highway 1 in Coquitlam leads to Highway 7. Once out of Coquitlam, Highway 1 crosses the Fraser River over the Port Mann Bridge into Surrey.
In Surrey, Highway 1 has three interchanges, the most easterly interchange of the three leading to Highway 15. 12 km (7 mi) east of the Highway's entry into Surrey, the Highway crosses into the Township of Langley. There are three interchanges on Highway 1 in its 18 km (11 mi) long stretch through Langley. One leads to 200 St., Langley's major thoroughfare, the second leads to Highway 10, and the third leads to Highway 13. Highway 1 then crosses from the Greater Vancouver Regional District into the Fraser Valley Regional District on its entry into Abbotsford. There are six interchanges on Highway 1 in its 33 km (21 mi) long stretch through Abbotsford, one of which leads to Highway 11. Once Highway 1 leaves Abbotsford, it crosses over the Vedder Canal into Chilliwack. The highway goes through Chilliwack for 24 km (15 mi), passing through five interchanges within the city.
2 km (1¼ mi) after leaving Chilliwack, Highway 1 reaches an interchange with Highway 9. East of the Highway 9 interchange, Highway 1 hugs the south bank of the Fraser River for 35 km (22 mi), passing through seven interchanges, until reaching the interchange with Highway 3 at Hope. Highway 1 takes the exit off the freeway at this point. (The freeway alignments of Highways 3 and 5 continue from this exit, Exit 170, and continue unbroken until it meets up again with Highway 1 just west of Kamloops at Exit 362.) Most traffic traveling between Hope and Kamloops follow Highway 5 as it takes over an hour and a half less time to travel compared to following Highway 1.
In the Kootenays, Highway 1 originally went around the Rogers Pass area in its section from Revelstoke to Golden. In 1962, the section of Highway between Revelstoke and Golden was re-routed through Rogers Pass. Over the 1970s and 1980s, Highway 1's alignment between Hope and Cache Creek underwent a massive overhaul, including new tunnels and river spans. In Kamloops, a new bypass was constructed to re-route traffic on Highway 1 around the downtown area of the city.
The Interior section of Highway 1 is 695 km (432 mi) long, and closely follows the path of the Canadian Pacific Railway. After leaving the freeway, Highway 1 courses through the town centre of Hope for 2 km (1¼ mi) before heading north across the Fraser River. At this point, Highway 1 becomes two lanes. 1 km (about ½ mi) north of the Fraser crossing, Highway 1 reaches its east junction with Highway 7. Continuing from the Highway 7 junction, Highway 1 goes 106 km (66 mi) north on a route that includes seven mountain tunnels, past the communities of Yale, Spuzzum and Boston Bar, before reaching its junction with Highway 12 at Lytton. Leaving the Fraser River, and following the Thompson River another 37 km (23 mi) northeast, Highway 1 reaches a junction with another numbered route, Highway 8. 38 km (24 mi) north of the Highway 8 junction, Highway 1 passes through a junction with Highway 97C. Continuing 5 km (3 mi) north, the highway reaches the community of Cache Creek, where Highway 97 merges onto the Trans-Canada from the north.
East of Cache Creek, Highways 1 and 97 proceed on their common alignment for 72 km(45 mi), passing through Savona en route to the point where Highway 1 enters the area belonging to the city of Kamloops. Highway 5 merges onto the Trans-Canada from the south at this point, returning the freeway to Highway 1.
The 1/97/5 concurrency proceeds east for 12 km (7 mi) on a freeway through the western part of Kamloops to where Highway 5 diverges north. Highways 1 and 97 leave Kamloops to the east 7 km (4 mi) later. The highway continues east for another 19 km (12 mi) to Monte Creek, where the freeway ends and Highway 97 diverges south from Highway 1. For the next 82 km (51 mi) east, Highway 1 takes a winding two-lane route through the communities of Pritchard, Chase and Sorrento before reaching the city of Salmon Arm on Shuswap Lake. Highway 97B meets Highway 1 in Salmon Arm.
After Salmon Arm, Highway 1 goes east for 27 km (17 mi) to a junction with Highway 97A at Sicamous. Over the next 71 km (44 mi) east, Highway 1 winds through the communities of Malakwa, Craigellachie and the Three Valley Gap, before reaching its junction with Highway 23 at Revelstoke, on the Columbia River. The next 148 km (92 mi) of Highway 1 to Golden winds east through Mount Revelstoke National Park and Glacier National Park, where the Rogers Pass area is located. There are seven snow sheds on Highway 1 just west of Rogers Pass.
After Glacier National Park and a time zone boundary crossing, Highway 1 passes over the Columbia River again at Donald, and then reaches its junction with Highway 95 at Golden. 73 km (45 mi) east of Golden, after Highway 1 has passed through Yoho National Park and the community of Field, Highway 1 crosses the Continental Divide (via Kicking Horse Pass) into Alberta.
|Douglas Street from Victoria|
|Burnside Road, Interurban Road||Southbound exit only|
|6||McKenzie Avenue, Admirals Road|
|View Royal||8||Helmcken Road|
|10||Burnside Road,||Northbound exit and southbound entrance|
|11||Six Mile Road to||Southbound exit and northbound entrance|
|Spencer Road||To be closed upon completion of Bear Mountain Parkway interchange|
|Bear Mountain Parkway, Leigh Road||Completion scheduled for 2009|
|To be closed upon completion of Bear Mountain Parkway interchange|
|2/3-lane highway through Goldstream Provincial Park and Malahat|
|Cowichan Valley||Mill Bay||Mill Bay Road, Brentwood Bay-Mill Bay Ferry|
|4-lane highway/expressway through central Vancouver Island|
|Cassidy Station Road||Southbound right-in right-out|
|Bridge over Nanaimo River|
|South Wellington||Nanaimo River Road to Nanaimo Lakes|
|Minetown Road||Southbound right-in right-out|
|Nanaimo||, BC Ferries||South end of Hwy 19 overlap|
|North end of Hwy 19 overlap; south end of overlap; northbound exit and southbound entrance|
|Cedar Road, Nanaimo Parkway|
|Continue to downtown Nanaimo as arterial road|
|Ferry across Strait of Georgia to Lower Mainland|
|From Vancouver Island via BC Ferries|
|West Vancouver||Bay Street||Eastbound entrance only|
|Keith Road, Horseshoe Bay||At-grade traffic-light combination intersecting southbound lanes; used to be slip-ramp interchange|
|0||Marine Drive||Southbound exit only|
|2||Eagleridge Drive||Northbound exit and southbound entrance only|
|West end of Hwy 99 overlap; westbound exit and eastbound entrance only|
|4||Caulfield Drive, Headland Drive, Woodgreen Drive|
|7||Westmount Road, Westridge Avenue|
|8||Cypress Bowl Road|
|10||21st Street, Skylift Road, Folkestone Way|
|11||15th Street, Cross Creek Road|
|13||East end of Hwy 99 overlap|
|Bridge over Capilano River|
|North Vancouver District||14||Capilano Road|
|15||Lloyd Avenue||Westbound slip-ramp|
|North Vancouver City||17||Westview Drive|
|North Vancouver District||19||Lynn Valley Road|
|21||Mountain Highway||Westbound exit only|
|22||Mount Seymour Parkway, Lillooet Road||To Capilano College, Mount Seymour Park, Deep Cove|
|23||Main Street, Dollarton Highway||Signed as exits 23A Main Street and 23B Dollarton Highway Westbound|
|Second Narrows/Ironworker Memorial Bridge over Burrard Inlet|
|Entering Cassiar Tunnel|
|Bridgeway Street||Intersection with at-grade portion of the highway|
|26||Intersection with at-grade portion of the highway|
|Exiting Cassiar Tunnel|
|27||Rupert Street, 1st Avenue|
|28B||Grandview Highway||Westbound exit and eastbound entrance|
|Burnaby||28A||Boundary Road||Eastbound exit and westbound entrance|
|29||Willingdon Avenue||Signed as exits 29A (south) and 29B (north) eastbound|
|32||Sprott Street||Eastbound exit and westbound entrance|
|33||Kensington Avenue, Canada Way|
|Coquitlam||40||Brunette Avenue - New Westminster||Signed as exits 40A (south) and 40B (north)|
|Port Mann Bridge over Fraser River|
|Surrey||48||152nd Street, 108th Avenue, Surrey City Centre||Eastbound exit and westbound entrance|
|50||104th Avenue, 150th Street, Surrey City Centre|
|53||, U.S. Border|
|57||192nd Street north||Eastbound exit and westbound entrance|
|Langley Township||58||200th Street, Langley City|
|66||, BC Ferries, Boundary Bay Airport|
|73||, U.S. Border|
Mount Lehman Road, Abbotsford Airport
|Fraser Way||Westbound entrance only|
|87||Clearbrook Road, Clearbrook|
|90||McCallum Road, Abbotsford City Centre|
|99||South Parallel Road||Eastbound exit and entrance|
|104||No. 3 Road, Yarrow, Cultus Lake|
|Bridge over Vedder Canal|
|Chilliwack||109||Yale Road West|
|120||Young Road, Downtown Chilliwack||Westbound exit and eastbound entrance|
|Popkum, Bridal Falls||135|
|138||Popkum Road, Bridal Falls|
|Cheam View||146||Herrling Island|
|Peters Indian Reserve||151||Peters Road|
|160||Hunter Creek Road, St. Elmo Road|
|Hope||165||Flood-Hope Road, Hope Business Route, Silver Hope Creek|
|168||Flood-Hope Road, Silver Hope Creek|
|170||Highway 1 exits freeway|
No direct ramp from Hwy 1 west to Hwy 3 east (use Old Hope-Princeton Way)
|Highway 1 continues northward into Hope, British Columbia as 4 lane highway|
The Coquihalla Highway continues the freeway and exit numbers
|Highway 1 continues northward into Fraser Canyon as 2/4 lane highway|
|Highway 1 enters freeway|
|Kamloops||362||Enters freeway, west end of Hwy 5 overlap|
Begin concurrency of Highway 1, 5, 97
|366||Copperhead Drive, Lac le Jeune Road|
|369||Columbia Street W, Notre Dame Drive, Kamloops City Centre||Eastbound exit and westbound entrance|
|370||Notre Dame Drive, Summit Drive, Kamloops City Centre||Westbound exit and eastbound entrance|
|374||, Jasper||East end of Hwy 5 overlap|
Begin concurrency of Highway 1, 97
|Valleyview Drive, Kamloops City Centre||No eastbound exit|
|Dallas Drive, Nina Place, Barnhartvale Road, Kipp Road|
|390||Lafarge Road||Signed as exit 391 westbound|
|Monte Creek||396||Hook Road||Signed as exit 397 westbound|
|399||East end of Hwy 97 overlap; no westbound exit|
|Gap in freeway through Thompson River Valley, Shuswap Lake, Eagle Pass|
|Columbia- Shuswap||Revelstoke||2-Lane highway section|
|Meadows-in-the-Sky Parkway, Mount Revelstoke National Park||2-Lane highway section|
|Gap in freeway through Glacier National Park, Rogers Pass|
|Columbia- Shuswap||Golden||Interchange planned|
|Golden Donald Upper Road, Golden View Road|
|Glenogle||Yoho Bridge over Kicking Horse River|
|Rafter's Pollout, Rest Area|
|Park Bridge over Kicking Horse River|
|Glenogle Creek Forest Service Road|
|Glenogle Creek Forest Service Road, Brake Check||Westbound exit only|
|Leanchoil||Wapta Road, Beaverfoot Road|
|Continues as 2/3-lane highway into Yoho National Park|