Project: New four-lane highway
Federal-Provincial Agreement: Canada/New Brunswick Highway Improvement Program
Length: 17 km
Number of Structures: 13, including two bridges crossing the St. John River
Number of Interchanges: 4
Status: Opened to traffic in 2003
Contractors: Aurèle Mallais & Fils Ltée., Clarence Daigle & Fils Ltée, St. Onge Forest Products, H.R. Civil Contractors Ltd., Dunbar Construction Ltd., Restigouche Construction Ltd., Atcon Construction Ltd., Northern Construction & Suppliers Ltd., Caldwell & Ross Ltd., Valley Foundation Works Ltd., Fundy Contractors Ltd.
Construction Facts:
- 2.1 million cubic metres of common material excavated
- 1.5 million cubic metres of solid rock excavated
- 393,000 tonnes of imported material
- 730,000 tonnes of crushed material
- 121,000 tonnes of asphalt
- 23 km of guide rail
- 583,000 square metres of topsoil placed
- 724,000 square metres of land hydroseeded
Innovative idea: During the construction work, the New Brunswick Departments of Transportation and Environment and Local Government teamed up to re-use fertilizer impacted soil that was found on the site of a former fertilizer storage area. The Departments used a green technology approach to clean up the contaminants. The material was spread on the slopes between Saint-Léonard and Grand Falls, then covered with topsoil. It was hydroseeded and mulched. As the new grass grew, the plants and the microbes that live on their root systems immediately began to stabilize the soil, keeping the fertilizer from expanding its reach into the environment. Within the first year, the grass and other plants extracted most of the nitrogen from the fertilizer-impacted soil. This environmentally friendly project saved the Department of Transportation approximately $660,000 because it no longer needed to monitor and store the soil
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The Four Lane Trans-Canada Highway in New Brunswick
NB Department
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