The two M400 (M401 and M402) contracts will provide design and delivery of metro tunnels, stations and structures, track, shafts, river and road crossings, surface and other civil works. The scope of each of the M400 Main Civils Infrastructure Contracts comprises:
Southern Section M401 – Charlemont to Northwood:
Northern Section M402 - Northwood to Estuary:
Click here for interactive route map.
February 2026
Design and build civil infrastructure contract packages for the M401 and M402 contracts
The design, supply, construction, operation, maintenance and financing of the metro rolling stock, signalling system (at Grade of Operation 4 - an automated railway (“GoA4”)), a railway depot and maintenance facility, park and ride facility, metro control centre building(s) together with the installation of all line-wide trackwork, overhead contact system, power and communication systems, mechanical and electrical systems including tunnel and station ventilation, people movement systems, construction of internal walls and secondary civil and building works within the shell-and-core structures of the underground stations (built by others), the fit out of finishes in sixteen stations (above and below ground) and design and construction of urban realm features including all ancillary works.
Operation and maintenance of all assets comprising MetroLink including shell-and-core structures and tunnel segments.
May 2026
