A six-week closure of the Maes y Gwernen bridge in Morriston has prompted a series of public transport changes aimed at preserving access to Morriston Hospital, one of Swansea’s busiest healthcare sites.
The bridge, which spans the M4 near Morriston Comprehensive School and the Deer’s Leap pub, closed to pedestrians on 7 July, with a full closure to all traffic beginning 18 July. The works, led by Centregreat Ltd on behalf of the South Wales Trunk Road Agent (SWWTRA) and the Welsh Government, will see the bridge deck fully refurbished, including waterproofing and resurfacing, with completion expected by 29 August.
Shuttle service introduced to maintain hospital access
In response to the disruption, First Cymru has launched a dedicated shuttle bus between the Deer’s Leap roundabout and Morriston Hospital, running every 30 minutes, seven days a week. The shuttle travels via Parc Gwernfadog and is free to use, with no additional ticket required. It connects with Services 4/4A at both ends, allowing passengers to continue their journeys to and from Swansea.
“We’ve worked closely with SWWTRA and the Welsh Government to minimise the impact on the travelling public,” said George Burton, Head of Network for First Bus in Wales. “Due to staffing constraints and limited notice, we couldn’t divert Service 4, so the shuttle ensures continued access to the hospital.”
(Image: First Cymru)
Additional route changes and diversions
- South Wales Transport’s Service 46 between Gorseinon and Morriston is diverting via Pant Lasau, Clasemont Road, Vicarage Road, and Chemical Road.
- First Cymru’s Service 4A (evenings, Mon–Sat) and Service 42 (mornings, Mon–Sat) are diverted via Christopher Road and Heol-y-Fran.
- First Cymru’s Services 4, 24 and 31 remain on their existing routes due to staffing limitations, terminating at Deers Leap, although connecting with the temporary shuttle to Morriston Hospital.
The bridge closure affects several key bus routes and has required careful coordination between operators, local authorities, and the Welsh Government to maintain essential services.
(Image: South Wales Transport)
Wider impact and infrastructure context
The Maes y Gwernen bridge is a vital link for both local and motorway traffic, with diversions in place via Junctions 45 and 46 of the M4, and signed alternative routes for pedestrians and vehicles. The timing of the works over the school summer holidays is intended to reduce disruption, though some noise and inconvenience are expected.
The temporary transport measures follow earlier reporting by Swansea Bay News on the bridge’s closure and the challenges faced by bus operators in maintaining hospital access. The shuttle service is part-funded by SWWTRA and the Welsh Government, reflecting the importance of keeping communities connected during essential infrastructure upgrades.
