In her new role, Morrison will work collaboratively with Network Rail to plan and deliver complex programmes to make them more effective, more efficient and create opportunities for local communities.

She has extensive experience having worked at Mace for over 13 years, most recently as operations director supporting the delivery of Hinkley and the A14.

Prior to that she worked with London 2012 for two years and BAA as project leader  for the Airport Construction Training Alliance.

Morrison said: “There were two things that really attracted me to Costain. I found the blend of digital expertise, consultancy capability and complex programme delivery provided a compelling way of enabling faster, better, greener, and more cost-effective infrastructure solutions.

“I was also struck by how diverse and inclusive Costain is – over 50% of the executive board is female. Encouraging and embracing diversity of thought and providing an environment in which different ways of resolving challenges are nurtured is essential if we are to provide the best service to our clients.”

Sue Kershaw, managing director of Transportation at Costain said: “Ann-Marie is a great fit for Costain.

“She is accomplished at mobilising diverse teams behind a common goal to maximise impact throughout the lifecycle of a project, from navigating the consents for the A14 to taking a leadership role in the Euston station redevelopment team and maximising the social value of the London 2012 Olympics.”