Location
Coquitlam, British Columbia
Expertise
Roads
Transportation
Bridges
Share
The Johnson-Mariner Connector comprises a 245 m long, four-lane bridge, an integral 100 m long two-lane ramp, 300 m of new road, 700 m of improvements to the Barnet Highway, water main, streetlighting, and provision for pedestrian and bicycle traffic.
The structure provides a grade-separated crossing of the CP Rail mainline and West Coast Express Commuter Rail, and crosses over the environmentally-sensitive Scott Creek flood plain and under BC Hydro power lines.
After extensive evaluation, MoT engaged the design-build team of Peter Kiewit and Sons and Associated Engineering. The team’s design-build concept dealt most effectively with the site’s sensitive geotechnical and environmental conditions, reduced land requirements, and provided the most innovative and aesthetically-pleasing solution.


Project Highlights
245m
four-lane bridge
100m
two-lane ramp
300m
new road
700m
improvements
Preloading the north approach and the use of piles for supporting the structure minimized the height of approach fills, reduced long-term settlement concerns, and improved accessibility beneath the elevated roadways. The use of a slender structure reduced the road grades, thereby minimizing the impact on adjacent properties. Despite a relatively heavy superstructure in a high seismic zone, the concrete slab solution proved to be 25% less costly than conventional designs.
More Roads Projects
See all projects

Roads
Fort Chipewyan Winter Road

Transportation
Highway 7 Haney Bypass Intersection Improvements

Infrastructure
Roads and Drainage Construction, Lake Babine Nation

Transportation
Haisla Bridge Replacement

Environmental Assessment
Environmental Assessment of Westside Road

Infrastructure
Market Crossing Commercial Development

Land Development
Blackwolf Community Development

Highways
Saskatoon ITS Needs Assessment

Streetscaping
Nigel Valley Public Spaces

Transportation
Casino Mine Access Road

Transportation
Transportation Planning and Functional Design of Burquitlam-Lougheed Neighbourhood Greenways

Highways
Regina Bypass ITS Infrastructure

Transportation
7 Avenue S. Bike Boulevard

Bridges
Howard’s Pass Access Road Bridge Replacement and Road Improvement

Streetscaping
Vanalman Avenue Upgrades
LEADERSHIP INSIGHTS
See all insights