IO selects Graham consortium to design, build and finance $240 million Davenport Diamond project


Ontario Construction News staff writer

Infrastructure Ontario (IO) says a consortium led by Graham Construction has been selected as the preferred proponent to design, build and finance the Davenport Diamond Rail Grade Separation project, part of Metrolinx’s GO Rail Expansion program.

Hatch, which is “providing technical advisory services and leading a multidisciplinary project team that includes engineers, architects, urban landscape designers, lighting designers, an integrated art consultant, and associated support staff” estimated (in 2017) the project has a value of about $240 million.

Graham Commuter Rail Solutions (GCRS) team members include:

  • Applicant Lead: Graham Capital Partners LP and Gracorp Capital Ltd.; Graham Construction and Engineering LP
  • Construction: Graham Construction and Engineering LP
  • Design: LEA Consulting Ltd. as Design Lead; exp Services Inc.; International Bridge Technologies; Brown & Storey Architects Inc.
  • Financial Advisor: Graham Capital Partners LP

IO and Metrolinx expect to reach financial close in summer 2019, with construction to begin shortly thereafter.

The project’s scope of work includes:

  • Construction of a rail grade separation structure between north-south GO Barrie Rail corridor and east-west CP Rail corridor;
  • Erection of retaining walls forming the approaches of the grade separation structure topped with noise reduction walls to minimize impacts on the community;
  • Construction of a temporary diversion track to enable construction of a new two-track elevated guideway;
  • Modification of an existing at-grade crossing at Wallace Avenue to become a road under rail grade separation;
  • Replacement of Bloor Street West Bridge; and
  • Construction in an active rail corridor with limited access points and staging and coordination with the Barrie Rail Corridor Expansion Grading project.


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