May 15th, 2014

Macdonald Cartier Bridge Detailed Traffic Control Plans (Ottawa, ON)


Castleglenn Consultants was retained to develop a traffic management strategy and traffic control plans to safely accommodate motorists and work personnel during the replacement of the asphalt surface and concrete repairs undertaken on the Macdonald Cartier Bridge.

The 6 lane, 700m long bridge structure is a major corridor connecting the province of Quebec and Ontario over the Ottawa River.  Existing Traffic volumes on the bridge exceed an AADT 40,000 vehicles per day and numerous interchange ramps result in merging operations taking place on approach to the bridge. As such, the traffic management strategy had to remain flexible by limiting construction to off peak periods and accommodating specific traffic control device setup and dismantling sequences.

In preparation of the traffic control plans Castleglenn had to ensure:

  • Temporary condition signs and devices conformed to TAC Manual of Uniform Traffic Control Devices for Canada, the Ministry of Transport of Quebec standards and Ontario Occupation Health and Safety Act for construction projects;
  • A viable staging strategy was developed that allowed a maximum of two lane closures at a time along the bridge;
  • Temporary conditions signs and devices were suited for night time construction and under adverse weather conditions;
  • Appropriate sight distances were available for motorists to see the temporary signs and devices; and
  • Existing traffic signs did  not conflict or provide mixed messages


Traffic control accommodation in work zones

Role & Responsibility

Sub Consultant


Public Works and Government Services Canada