Transportation projects

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Bridge rehabilitation and road improvements

Road resurfacing improves accessibility

Resurfacing of a 3300 m stretch of Danforth Road for the City of Toronto in Canada posed some specific challenges for GHD.

As part of our engagement to provide the design and tender preparation for the road, we addressed the need for sidewalk grades to conform to the city’s Accessibility Guidelines, and the location of catch basins in the travelled portions of the lanes.


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Completion of Highway 30, Québec, Canada

Road resurfacing improves accessibility

GHD delivered a range of services in support of the completion of Highway 30. This project aimed to finalize the Montréal Island highway bypass on the south shore of the St. Lawrence River. The project comprised 42 km of new roadways and more than 100 km of ramps and access roads. It also consisted of several major structures, including two major interchanges (A30/A20/A540 and A30/A530), a tunnel under the Soulanges Canal, a first bridge across the St. Lawrence River, and a second bridge over the St. Lawrence Seaway and the Beauharnois Canal.

Despite difficult subsoil conditions (i.e., sensitive and compressible Champlain sea clay deposits), we were able to complete the project within the projected schedule and budget.

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Easier parking at GO train station

Easier parking at GO train station

Metrolinx, the company operating the Government of Ontario (GO) trains in Canada, turned to GHD to provide 550 additional parking spaces, at its Richmond Hill station.

At the same time, the rehabilitation of the existing 1500-plus parking lot was required to enhance functionality, extend service life and improve accessibility for those with disabilities.


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Newmarket Transportation Study (Ontario, Canada)

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GHD is assisting the Town of Newmarket in the development of the Transportation Study for the Yonge Street and Davis Drive corridors. 

These corridors will be transformed over the next 30 to 50 years from the traditional suburban retail and residential environment to an integrated urban centre.  People-oriented and transit-oriented development will form a core in Newmarket where people will enjoy multiple travel mode choices in accordance with sustainability principles.  GHD is working with the Town of Newmarket and York Region to develop a plan encompassing transportation policies, services and infrastructure that addresses the mobility needs of the future community, while prioritising the quality of life enjoyed by the area’s residents, employees, visitors and businesses.


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Road resurfacing improves accessibility

Road resurfacing improves accessibility

GHD's inspection of the 18 m span Wentworth Street Bridge in Oshawa, Canada for the Region of Durham revealed a number of serious safety concerns.

These included substandard narrow traffic lanes and sidewalk, non-existent clearance between the edge of the exterior lane and sidewalk, deterioration in the condition of the bridge and a barrier system that didn’t comply with the relevant regulations.


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West Vancouver Freight Access - Schedule 1

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The Port of Vancouver manages a significant link in the rail corridor, providing critical connectivity for freight mobility throughout the Pacific Northwest. A chokepoint at the entrance of the port leads to track conflicts and causes severe congestion, hindering the port’s ability to maintain smooth operations and a competitive edge in the global marketplace.

GHD, (as a sub-consultant to DEA), was selected to complete Schedule 1, the catalyst in a series of important projects that will increase rail capacity and maximizes future port growth potential.

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York Spadina Subway Extension

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GHD carried out geotechnical investigations for the  Toronto-York Spadina Subway Extension is an 8.6 km extension from Downsview Station northwest through York University within the City of Toronto and north to the Vaughan Corporate Centre in the Regional Municipality

Our investigations involved the advancement of deep boreholes up to 50 m depth, installation of monitoring wells, pressuremeter testing and analysis, hydraulic conductivity testing, detailed geotechnical laboratory testing, environmental analytical testing, and preparation of factual data reports. The total amount of drilling exceeded 5000 lineal meters.

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GHD Library

The GHD library is a collection of relevant resources.