We have received a letter from Highways England about the A31 drainage improvements. The main text of the letter is below or the letter can be downloaded as a PDF.

Following preliminary survey works undertaken in July 2020, we have revised the design of the improvements to include some additional hotspots and also to improve the environmental impact of our works.  These activities have required more time to plan, and therefore the main improvements will start as soon as the final design elements have been clarified.

As a reminder, these improvements will involve installing new french drains, new gullies, new outfalls, improved verge edge channels and reprofiling the edge of the carriageway and road surface. This work aims to improve flood resistance, increase drainage capacity and ensure safety of road users and the local community.

We hope to start the main improvements in winter and complete in spring 2021. Confirmation of the dates for this phase of work will be provided to you nearer the time.

To help improve safety during the winter period, we will be carrying out the following preparation works:

  • Creating small trenches to help water flow away from the road in selected locations
  • Vegetation site clearance
  • Conditional surveys to walls
  • Surveys at Roundhouse roundabout
  • Application of anti-skid material on the A31 following recent resurfacing work

This work will take place over five nights starting on Monday 28 September 2020. We will be closing the A31 between Bere Regis and Sturminster Marshall in both directions between 9pm to 6am. During these hours a diversion route will be in place via the A35 and A350.

In addition, crossing points at Almer, Worlds End Pub and Red Post will be in place using temporary traffic lights for residents to be able to travel north/south across the A31.

Access will be maintained for emergency service vehicles during the closures; all drivers must observe the reduced site speed limits for our workforce’s safety.

Please note that these works are subject to change due to adverse weather conditions or unforeseen circumstances. We’ll provide details of the closures on yellow signs in advance of the works alongside the road.

I would like to apologise in advance for any inconvenience or disruption you may experience during this work.

If you have any questions, or if you would like to know about our work, please contact us on 0300 123 5000 or email info@highwaysengland.co.uk. Or you can visit our website at highwaysengland.co.uk/roads/ where you can find a weekly report of all full closures across the network.


A31 Dorset Drainage Improvements – Update
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