Motorists have been warned and diversions will be in placeColdharbour Lane. at the junction with the A4174 ring road (Image: Google Maps)

Road closures and diversions will be in place for six weeks at a busy junction near the M32 this summer. There are planned improvement works on Coldharbour Lane in Filton – which is where the University of the West of England’s Frenchay campus is located – and at its junction with the A4174 ring road.

The main disruption will see the left turn from the main ring road, which connects junction one of the M32 with Filton, onto Coldharbour Lane closed for the duration of the works.

The works will see a new left turn lane installed from the A4174 to Coldharbour Lane as well as a new cycle and pedestrian path at the junction.

The roadworks will take place from Monday, July 21 until the end of August and are part of the broader A4174 improvement scheme. Motorists will need to follow diversion routes until the works are completed.

South Gloucestershire Council has said the new turning lane will aim to ease congestion of traffic turning towards the campus from the ring road.

“This closure has been scheduled to take place during the school summer holidays to help minimise disruption,” a council statement said.

“There will be a signposted diversion route for Coldharbour Lane via Abbeywood Roundabout and a diversion route for Filton Road (eastbound) via the A4174.

“We understand that any road closures can cause inconvenience, and we thank you in advance for your patience and understanding while we complete these essential improvements.”

Construction for the broader A4174 improvement scheme began in February 2025 and is scheduled to run until January 2026.

The project will deliver additional driving lanes, separate cycle lanes and footpaths, and improved crossings for pedestrians and cyclists along the busy road.

South Gloucestershire Council said the works were essential to improve the “critical route for local communities, schools, workplaces, and major employers”. The estimated cost of the project is £15 million.