M8 M73 M74 Motorway Improvements
Central Scotland, UK · 2014–2017 · £500 million (overall project); £310 million (construction cost)
The judgement call
Account-gated at launchDelivered as a Design, Build, Finance and Operate (DBFO) public-private partnership project. - Significantly improved journey times and connectivity between Scotland's two largest cities. - Included provision for active travel (cycle and pedestrian highways) alongside the motorway. - Demonstrated successful delivery of a major infrastructure project through a consortium approach.
Key engineering challenges
Completing the M8 'missing link' to create a continuous motorway between Glasgow and Edinburgh. - Upgrading and widening sections of the M73 and M74 while maintaining high traffic volumes. - Integrating new motorway sections with existing complex road networks. - Minimising disruption to commuters and businesses in a densely populated area.
Project facts
- Client / owner
- Transport Scotland
- Lead contractor
- Scottish Roads Partnership (SRP) consortium (led by Ferrovial, with Lagan and Amey)
- Lead designers
- RPS Group (Contractor's Designer)
- Project type
- upgrade
- Scale
- Completion of the M8 'missing link' between Baillieston and Newhouse; upgrades to M73 and M74 motorways; new all-purpose A8.
- Disciplines
- civil; structural; geotechnical; environmental; transport planning; traffic management
- Standards & frameworks
- NEC; DMRB; CDM Regulations (Scotland)
Sources: Transport Scotland (https://www.transport.gov.scot/projects/m8-m73-m74-motorway-improvements/project-details/) - Institution of Civil Engineers (ICE) (https://www.ice.org.uk/what-is-civil-engineering/infrastructure-projects/m8-m73-and-m74-motorway-improvements) - Ferrovial (https://www.ferrovial.com/en-us/business/projects/scottish-highways-m8-m73-y-m74/) - RPS Group (https://www.rpsgroup.com/projects/m8m73m74-motorway-improvements-scotland/)