HIGHWAY 1 NORTH FORK BRIDGE REPLACEMENT AND FOUR LANING
The Trans-Canada Highway 1 is Canada’s national highway and is crucial for the movement of people and goods from coast to coast.
Client: BC Ministry of Transportation and Infrastructure
Location: Sicamous, BC, Canada
Project Type: Transportation
About This Project
The Trans-Canada Highway 1 is Canada’s national highway and is crucial for the movement of people and goods from coast to coast. The North Fork project area was a rural two-lane, high-speed thoroughfare with a high percentage of truck traffic that crosses a narrow, 56-year-old steel truss bridge. BC’s Ministry of Transportation and Infrastructure (MOTI) identified this stretch of highway and the bridge as a priority improvement to increase capacity, improve safety and facilitate economic development in the region. ISL was retained by MoTI to provide functional design, detailed design, tender and construction services to deliver this $21 million upgrade project. This included widening 3.5 km of highway from two to four lanes (including 1.9 km of frontage roads, 0.9 km of side roads and two protected T-intersections) and to replace the Perry River Bridge with a new MoTI-designed four-lane bridge.
The project was in a floodplain surrounded by mountainous terrain. ISL’s scope included highway and drainage design with profiled ditches and a hydrological study of the catchment areas serviced by existing culverts to determine upgrade and replacement requirements.
The highway geometry was designed to minimize construction impacts to the Perry River, Eagle River and surrounding wetlands and tributaries as well as to circumvent CP Rail facilities and associated right-of-ways.
To improve safety, high traffic businesses (such as the Skyline Truck Stop and Beardale Castle) with current direct highway access will now gain access via frontage or side roads serviced by dedicated right-turn lanes and protected T-intersections.
ISL won a Deputy Ministers Award for Excellence in Design and Construction Preparation in 2020.
Image Credit: BC Ministry of Transportation and Infrastructure
- Transportation Engineering
- Municipal Engineering
- Supporting Services