Aecom will assess options in order develop initial designs and a preferred route for the new bridge linking Anglesey with mainland Wales.
The contract covers multidisciplinary services, including bridge and highway engineering, transport planning, traffic modelling and environmental and ecology consultancy services. Aecom will work with its subconsultants Knight Architects and environmental consultancy Richards, Moorehead & Laing.
The Menai Bridge, built by Thomas Telford in the 1820s and Robert Stephenson's Britannia Bridge suffer from heavy congestion. Aecom’s services will include a review of the potential impact of the proposed scheme on the two historic bridges to develop a design that minimises impact on the environment and is sympathetic to the existing crossings.
The Britannia Bridge is also the only section of the A55 that is not dual carriageway and can be a significant bottleneck for traffic along the route, which links the M53 with Holyhead Port and is part of the Trans European Road network.
Aecom highways director – Europe, Dave Beddell, said: “A much-needed third crossing on the Menai Strait will keep traffic moving along the strategic A55, helping to boost economic growth in North Wales and Anglesey.”
Work on the project starts immediately and follows Aecom’s previous work in 2016 to develop a strategic business case for the scheme.