Main A39 to close for major engineering scheme


Live updates on this scheme at 

Teams will be working 24 hours a day and using innovative engineering methods next week when the main road between Street and Glastonbury is closed for major repairs.

The A39 Causeway near Street will be closed from 7pm on Friday 21 October until Sunday 30 October for rebuilding and resurfacing work.

Somerset County Council started planning the scheme back in February, engaging with the local community and partners such as utility firms in efforts to keep disruption to a minimum.

The programme will see teams working night and day to complete the work during the October half-term week. This was deliberately chosen as the roads are quieter and to avoid issues with school transport.

Cllr David Fothergill, Somerset County Council’s Cabinet Member for Highways, said: “Our planning for this extremely challenging scheme started back in February and we’ve been in contact with hundreds of people, businesses and local groups since then.

“There’s just one thing left to do now and that is remind everyone that the work is about to begin. Please consider making alternative arrangements while the road is closed and think very carefully about when and how you’re going to get around.

“You can check the latest before you set off with @TravelSomerset on Twitter and on the website. We’ll also be posting regular updates on the scheme as it progresses.

“Most people agree this work needs to happen. We cannot do this without a road closure but our commitment is to have staff working around the clock to complete the job as quickly as possible.”

The A39 Causeway is showing signs of significant structural failure and has seen 67 separate visits to fix potholes in two years.

Somerset County Council needs to reconstruct the carriageway, excavating to depths of more than one metre. Due to the width of the carriageway, the only way to do this safely is by fully closing the road.

A39 Street Causeway road widths

Following extensive investigations and planning, it has been agreed that an innovative resin injection system will be used to improve the strength of the road while reducing the need for excavations. This process will keep costs down and is better for the environment by reducing the need to transport and dispose of materials.

Signed diversions will be in place for both light vehicles and HGVs, and you can find details of these in the information sheets below.

The footway and cycleway will remain open and accessible during the works.

A39 Street Causeway – information sheet, including Q&A

A39 Street Causeway – information sheet 2, finalised plans and diversion routes

We’ll also be providing updates on the scheme as it progresses at