Find out about the Mannington roundabout project

Mannington roundabout

Latest news and updates

Mannington Roundabout is a key intersection in Swindon’s strategic road network, connecting the M4 Junction 16 to the town centre and beyond. Due to the increase in traffic on Swindon’s roads this junction has, over the years, become heavily congested at peak times.

Funding has been secured from the Swindon and Wiltshire Local Enterprise Partnership to develop a scheme aimed at alleviating the congestion and improving conditions for those using the roundabout. This project is part of a package of measures totalling £3.2 million which will deliver a Quality Bus Corridor from Wichelstowe to the town centre, providing more reliable journey times.

Phase 1 - complete

Work on the scheme has already begun with the successful removal of the Wootton Bassett Road bus lane between Mannington Roundabout and the railway bridge. This was done overnight in order to minimise disruption to traffic and the new layout on Wootton Bassett Road is working well. Some vegetation has also been cleared by the Mannington Retail Park which had to be completed before bird nesting season began in March.  

Phase 2 – started on Monday, 16 April 2018

The work on Tewkesbury Way is progressing well. The BT cables were successfully moved in about half the time we had originally estimated. Some ground investigation works for the whole project were then carried out which took a little longer than expected. During the week beginning 25 June 2018, we plan to start the removal of the long traffic island, which currently separates the bus lane from the rest of the traffic. Then, the whole eastbound carriageway will be resurfaced between the roundabout and the start of the bus lane. We will carry out this work overnight (on 5 and 6 July) in order to minimise disruption to traffic.

Phase 3 – starting summer 2018

This phase will seek to improve the traffic flow from Great Western Way into Wootton Bassett Road (by Fish Brothers). Plans are being finalised for this phase and the programme of work is being developed as we need to move Vodafone and SSE cables out of the way before we make changes to the kerb line. Another update will be provided when we have a definite start date for this work.

Phase 4 – starting January 2019

The final phase of the project will be based at Mannington Retail Park and will begin after the main Christmas period has finished. Construction of a new merging on-slip lane from the retail park onto Great Western Way will reduce the volume of traffic leaving the retail park at Wootton Bassett Road and entering Mannington Roundabout. The slip lane into the retail park will also be extended, giving extra queuing capacity at busy times and easing the left turn into the retail park. Within the retail park itself, Telford Way (which is a public highway) will be widened and the entrances and exits to the car park areas will be improved. New traffic signs will be provided, to make the internal flow much simpler and more effective. This aims to reduce the queuing back out onto Great Western Way at busy periods.

Included in this scheme is a total refresh of all the road markings on the roundabout and a reduction of the speed limit both on the approach to Mannington Roundabout from Blagrove Roundabout (to 50mph), and on the exit from Mannington Roundabout past the Retail Park (to 40mph). This seeks to reduce the number of road traffic accidents in this area. 

Supporting documents

Information outlining the different phases of the project can be found in the following documents:

Last updated: 01 June 2018. Was this information helpful?

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