A466 Roadworks


Friday 30 April 2021 

UPDATE - the A466 will now close on 4th May


This from Stephen Baldwin: " Apologies for the late notification [It was 3.25pm] but we have only just been informed that we have achieved the required temperatures which will allow works to commence next week. The contractor will now be informed and the road closure of the A466 will take effect from the 4th May."

Wednesday 28 April 2021

UPDATE on A466 closure from Stephen Baldwin


Monmouthshire County Council has confirmed that, unfortunately, due to the ongoing unseasonably cold spell, it is not yet possible to commence the stabilisation works above the A466 at Wyndcliff.  It is anticipated that the works will be able to commence on Tuesday 4th May 2021, with the road closure commencing on that day.  However, this is subject to further temperature monitoring over the next few days.  We are also working with Dŵr Cymru Welsh Water to seek to bring forward a one day road closure on Bargain Wood Road currently scheduled for 4th May 2021 to minimise any potential conflict.  We will provide an update on both matters as soon as possible. [UPDATE: Bargain Wood Road will now be closed from Friday 30th April.]


While the A466 Wyndcliff site is set up and work ready to commence, the seven consecutive nights with temperatures at or exceeding 8oC, as required by the European Protected Species licence, has not been achieved.  On site temperature monitoring stations are being regularly inspected and work will commence as soon as possible once the terms of the licence have been met.


Monmouthshire County Council officers are holding frequent meetings with the ecologist and contractors on the project to discuss the situation and revise the timetable. The collapsed rock face and cave system above have been confirmed as providing important bat species a roosting site to hibernate throughout the winter. A European Protected Species (EPS) development licence for bats has been approved by Natural Resources Wales (NRW) for the Wyndcliff site. The seven consecutive days is the minimum amount of time, set out in the EPS development license, to allow the bats to emerge from their hibernation roosts. Any deviations in this approach would breach wildlife legislation and the licence must therefore be adhered to.


A spokesperson for Monmouthshire County Council said: “Figures suggest that this is the coldest April since 1980.  Unfortunately the unseasonably cold weather has delayed the commencement of works, because we must comply with the terms of our bat licence.  We hope to commence the works on Tuesday 4th May and will confirm this as soon as possible.  It is hoped that the road closure will be removed prior to the second May bank holiday weekend.”


Throughout the road closure period - now expected to be a four-week period from 4th May - a full diversion will be in place allowing traffic to travel between Chepstow and Tintern.  Drivers are asked to follow the diversion signs and not rely on satnav, as many of the local lanes are very narrow with limited opportunities for vehicles to pass. Cyclists will still be able to use the A466 during the closure.


For the latest information visit: monmouthshire.gov.uk/a466

Monday 12 April 2021

UPDATE - the A466 will now close on 26th April


The Community Council have been advised that the road closure has been delayed as the recent cold spell prevented the possible emergence of hibernating bats.

We are now advised that the road will close on Monday 26 April and is again scheduled for 4 weeks.

Thursday 22 April 2021

UPDATE - A466 closure delayed...


Just thought I would give you an update on where we are with the potential start date and the issues surrounding the bats and reaching the required 8 degree temperature threshold, especially overnight.  While temperatures have been improving they are still not quite warm enough at night to enable us to commence works on the 26th as first anticipated. They are monitored regularly and there will be a further review next Monday (26th). As long as the temperatures continue to improve we believe we should be in a position to commence works either on the 28th April (next Wednesday) or after the Bank Holiday on the 4rd May.


I’ll send a further update out next Monday after the review has been completed.


Stephen Baldwin

Project Engineer (Structures), Highway & Flood Management
Monmouthshire County Council / Cyngor Sir Fynwy

Thursday 25 March

A466 Tintern to St Arvans Closure - Wyndcliffe

Update from Stephen Baldwin, Project Engineer (Structures), Highway & Flood Management


"I have an update to share with you regarding the forthcoming scheduled works on the A466 at Wyndcliffe and I can confirm the following:

  • Welsh Government grant funding has been secured.

  • Tree felling works are scheduled to start on 29th March.

  • Alun Griffiths Contractors has been awarded the contract and will start on site on 6th April as hoped. Part of the first week will be site set up and it is expected that the full closure will commence w/c 12th April. 

  • The contractor proposes to work a 6 day week meaning the road closure should be slightly less than the 4 weeks previously discussed.  The works are scheduled to be complete before the first May bank holiday (again, as hoped).  I say this with the caveat of finding unexpected matters when they are working or cold weather delaying the start due to bats, but everything in our control is in place to achieve this.

  • The Contractor has allowed in his method statement to allow for pedestrians and cyclists to be escorted/walk their bikes through the site.

  • There is a pre-contract meeting arranged for next Monday (29th) and if any of the above changes I will let you know. 

  • The last update from Gloucester County Council’s regarding their works near Redbrook suggests they are on schedule to finish on time.


Everything seems to have gone to plan so far and I’m hoping the works themselves go smoothly."