en.Wedoany.com Reported - Cardiff Council and Transport for Wales have appointed GRAHAM as the main contractor for Phase 1a of the Cardiff Crossrail project, with site preparation work already underway. The contract for this phase is valued at £100 million, focusing on utility diversions and preparing the Callaghan Square corridor for a tram-light rail link connecting Cardiff Bay with the city centre.
Phase 1a includes utility diversion work along Callaghan Square to clear the way for future track installation, serving the new indoor arena and the Atlantic Wharf development zone. The overall vision for Cardiff Crossrail is to build a modern tram system linking Plasdwr in the northwest of the city with the proposed Parkway railway station in the east, though funding and timelines for subsequent phases have yet to be confirmed.
The project contract is valued at £100 million, jointly funded by £50 million from the UK Government's Levelling Up Fund and another £50 million from the Welsh Government. No tracks will be installed during this phase, which focuses solely on corridor preparation. The project completion date has not been officially disclosed.
The preliminary works for Cardiff Crossrail Phase 1a represent one of the largest single-phase urban transport infrastructure investments in the UK in 2025. Compared to similar projects such as Mid Cornwall Metro (valued at £57 million, which saw a 25% increase in passenger numbers in its first week of operation), this preliminary phase involves a higher investment but, being preparatory work, will not immediately generate new passenger journeys. Separately, according to a 2025 report by Construction News, Group Metropolitan, based in southeast London, saw its revenue increase by 33% to £84.9 million in the financial year ending December 2025, driven primarily by diversification into rail and urban transport projects.
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