The PTH 59/101 project utilized 15 disciplines or departments within WSP and/or sub-consultants. The scope of application of the engineering disciplines is very broad. For instance, during the functional design, WSP considered a total of five alternative designs for the Interchange and recommended one alternative to Manitoba Infrastructure, which formed the basis of the design for the design-build contractor.
There were multiple opportunities to innovate during the design and construction of the interchange. These innovations include: the use of wick drains, the creation of haul roads for embankment fill to alleviate congestion on PTH 101 and PTH 59 during construction, the use of specialized machinery such as rock trucks and silt fence installation attachments to expedite the construction schedule, and the use of shear keys in sensitive geotechnical areas.
An architect was included on the WSP team to design architectural relief on the bridge piers, abutments and barriers throughout the project. This aesthetic treatment added a unique layer of interest.
As the largest interchange project undertaken by Manitoba Infrastructure and WSP in Manitoba, WSP staff had the opportunity to work on not only a signature project, but also the frost active transportation/emergency vehicle “throughpass”, built in Manitoba. Challenges included: the geometric design, addressing current drainage areas in the study area, and developing a traffic plan that needed to change on a regular basis to meet the needs of the contractor and the travelling public.