Washington State Route 543

Highway 15 and State Route 543
Pacific Highway 176th Street
Highways 15 and 543 highlighted in red.
Route information
Maintained by B.C. MoT and WSDOT
Length:	21.77 km (13.53 mi)
History:	BC: 1913 – present WA: 1919 – present
SR 543 (Washington)
Length:	1.75 km (1.09 mi)
South end:	I‑5 in Blaine, Washington
North end:	Canada–US border
BC 15 (British Columbia)
Length:	20.02 km (12.44 mi)
South end:	Canada–US border
Major junctions:	BC 10 in Surrey Golden Ears Way in Surrey
North end:	BC 1 / BC 17 in Surrey
Highway system
British Columbia provincial highways ← BC 14 BC 16 → ← SR 542 SR 544 →

British Columbia provincial highways

Highway 15 (BC 15), known locally as the Pacific Highway, is a 20.99-kilometre-long (13.04 mi) north–south highway primarily located in the City of Surrey, British Columbia. The southern terminus is with Interstate 5 (I-5) near Blaine, Washington as Washington State Route 543 (SR 543). SR 543 is a 1.09-mile-long (1.75 km) connector between I-5 and the Canada–US border, linking with BC 15. Over 3,000 trucks per day pass through the border crossing along SR 543 and BC 15, because the Peace Arch border crossing does not allow commercial trucks.

SR 543 starts at an incomplete trumpet interchange with I-5 and heads north, passing the now closed Blaine Municipal Airport. An at-grade interchange with H Street is next, before the road widens and an interior lane diamond interchange with D street, providing access to Blaine and the last northbound exit before the border. Traffic from 12th Street can access both northbound and southbound SR 543, and traffic from southbound SR 543 can access 12th Street as the final interchange before the Canada–US border.