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Bromley Heath Viaduct

On Monday 12 June, between 9:30 am and 3:30 pm, for 3 weeks, works will commence at the junction of the B4465 Wapley Road and the A46 Bath Road to install temporary traffic lights. We apologise for any disruption caused.

Find out more information about the traffic measures and management

We are hosting a second round of engagement events. All the events are drop in sessions. You are welcome to come along at any time from the start to the end of the event where you can speak to officers and the contractors about the project and your particular questions and take away information with you.

Saturday 10 June, 10am to 12 noon,
Little Stoke Primary School, Little Stoke Lane BS34 6HY

Tuesday 13 June, 6pm to 8pm,
Frampton Cotterell C of E Primary School, Rectory Road BS36 2BT

Wednesday 14 June, 7.15pm to 9pm,
Frenchay Village Hall, Beckspool Road BS16 1NU

Saturday 17 June, 10am to 12 noon,
Downend Library, Buckingham Gardens BS16 5TW

Monday 19 June, 6.30pm to 8.30pm,
Bromley Heath Infants School, Quakers Road BS16 6NJ

Thursday 22 June, 6pm to 8pm,
Emersons Green Village Hall, Emersons Way BS16 7AP

Tuesday 27 June, 6pm to 8pm,
Winterbourne Greenfield Centre, Park Avenue BS36 1NJ

Wednesday 28 June, 5pm to 7pm,
The Pavilion, Elm Park, Filton BS34 7PS

Wednesday 5 July, 6pm to 8pm,
Winterbourne Library, Flaxpits Lane BS36 1LA.


The Bromley Heath Viaduct is on the A4174 ring road as shown on the map below, it was constructed in February 1966 as a single carriageway road over the River Frome and in 1988 was changed to a dual carriageway. Today, the viaduct carries approximately 55,000 vehicles and 500 cyclists a day.

The main work on the viaduct will begin this summer and last for up to 52 weeks.

The viaduct requires essential maintenance work on: pier strengthening, bearing replacement, drainage improvements, water proofing, parapet and safety fence replacement, concrete repairs, and abnormal load carrying capacity improvements.

Watch our short video that explains the work required on the Bromley Heath Viaduct

As well as undertaking essential maintenance work on the viaduct, we will also make some improvements to widen the shared footpath for cyclists and pedestrians to help reduce incidents between users. We will be adding a barrier between the path and the carriageway to reduce the risk of collisions with vehicles.

In isolation, this work would normally take up to a year but we are taking the opportunity to undertake this work at the same time as the essential maintenance work is being carried out to help minimise the work programme and share construction costs and resources, as well as minimising the impact and duration of work to residents, commuters and businesses.

This work for the Bromley Heath Viaduct was confirmed by Councillors to begin the work in July 2017 for a maximum duration of 52 weeks, but with an aim to try to secure additional funding to accelerate the work programme and reduce the timescale and we have already undertaken some preparatory work. This early work includes assessing wildlife habitats and clearing vegetation as well as the construction of the site compound.

Fence blocking access to the viaduct


The extent of the work will require the southern viaduct to be closed to all traffic for the duration of the project.

This is because the removal of the worn out parts of the structure will mean that it is too weak to safely carry any traffic until the maintenance is complete. Therefore, a crossover link will be created for the duration of the work and the current two lanes in both directions over the viaducts will reduce to one lane in each direction. Please see the below map that illustrates how people and vehicles will be able to travel over the viaduct.

Bromley Heath viaduct traffic management

To use M4 Junction 18 for both west and east journey as an alternative route to avoid the A4174 ring road/M32 and access the M4.

To use the B4058 as an alternative route to access the M32 and Bristol from Yate. Road closures on particular roads near the road works.

Amended traffic signalisation at Hambrook Lights on the A4174 ring road.

This is one of the busiest sections of the A4174 and will cause significant delays. We understand that this scheme may cause disruption and disturbance to residents, communities and businesses and would like to apologise in advance and kindly ask for your patience whilst this work is taking place.

To help facilitate traffic movements and alleviate traffic congestion during the works, we are currently carrying out traffic modelling and are identifying alternative travel routes across key areas that the works will significantly impact.

If you have any queries please do not hesitate to or call us on 01454 868000.

Please also follow our Facebook account for the latest news and updates on this scheme.

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