We helped to construct the grade for the eastbound lanes of Highway 43
To a 19.45 metre finished subgrade width, with six permanent median crossings.
This highway construction contract also included sideslope improvements along the existing NBL for the entire length of the project. Fourteen borrow sources were designed along the proposed southbound lane with a design quantity of 1,323,000 m3 for subgrade construction and another 108,500 m³ for the northbound lane sideslope improvements.
All fill materials for the newly constructed southbound lane subgrade was taken from nine borrow sources along the west side to avoid hauling fill material across Highway 43. We found four borrow sources on the east side of Highway 43 for service roads, private roads and road allowance realignments. Material for the northbound lane sideslope improvements came from borrow sources on both sides of Highway 43.
Total design common excavation for the project was 655,000 m³ which included some double handle stripping for topsoil placement. All existing dugouts within the existing 121.92m highway right-of-way and/or within new service road right-of-way were backfilled. Six new service roads were constructed throughout the project.
We successfully completed this project in a very difficult area, and in wet conditions. The project is an example of a true partnership between Alberta Infrastructure and Transportation, Thompson Bros. (Constr.) Ltd. and Opus Stewart Weir.
The sub-consultants of this project were J.R. Paine & Associates Ltd. for materials testing; Enviro Mak Inc. for environmental management; CRA for borrow disturbance assessment and Westworth Associates Environmental Ltd. for natural resources management.
As prime consultant, we provided design, construction management and contract administration from start to finish. We provided preliminary survey and design, prepared the tender package and construction survey, provided project management and contract administration.
Our team included designers, drafts people, a utilities coordinator, senior engineers and technologists, surveyors, a project manager, materials testing and field staff.
For this project we used Total Station, AutoCAD, EMXS, 3-D Laser Scanner.