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Highway 11 Twinning, Duck lake, Saskatchewan

Project management, subgrade testing, surveying & contract management of highway twinning for 19.4-kilometre stretch

 

Client: Saskatchewan Ministry of Highways and Infrastructure

Our client’s challenge

WSP was retained by the Ministry of Highways and Infrastructure to provide consulting services for the construction of the subgrade required to twin 19.4 kilometres of Highway 11 near Duck Lake as part of the ‘Highway 11 Saskatoon to Prince Albert corridor upgrades’.

Our approach

The terrain on this stretch was extremely hilly and swampy in areas, creating a challenge for field personnel. Geotextile was used in several areas to mitigate moisture issues and achieve better compaction. This project included bore pipe installation, numerous culvert installations, water channel realignment, utility relocates, and grid road realignments in addition to the subgrade construction. This construction was completed through nearly 10 kilometres of provincial forest which resulted in much consideration being taken for sensitive environments and species including the presence of rare plant species, wetlands, and birds nesting in the construction zone.

The entirety of WSP’s portion of the project was completed in 2011, including clearing and grubbing in early spring and contract administration for the construction in summer and fall. Extensive liaisons with stakeholders were a high priority on this job due to land acquisition, roadway redesign, and borrow material requirements.

Outcome

The $3.4 million project was successfully completed in 2011. Despite challenges faced, WSP pleased the client with quality, efficient work on this major project.

Fish capture during wetland re-alignment