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Traffic Wales information line 0300 123 1213
The Welsh Government’s traffic information service for motorways and trunk roads in Wales

A40 Carreg Fawr Culvert Replacement


Where and Why?

Works will be undertaken to carry out the replacement of the A40 Carreg Fawr Culvert, which is north of the Square and Compass Roundabout near Llangadog Carmarthenshire, starting on the 28th October 2020.

Diversions and Safety Measures

Works will be carried out via two way lights, lane closure, and a layby closure. The layby will be closed for the first 2 weeks to undertake the repairs below. The remaining repairs below the carriageway will be undertaken via 2 way lights, with traffic being diverted through the layby.

Programme of Traffic Management Restrictions

28/10/20 - Vegetation Clearance - Two way lights and lane closure

02/11/20 – Works are programmed for 5 weeks. Layby will be closed for the first 2 weeks, followed by 2 way lights the remaining weeks with traffic diverted through the layby


For further information, please contact Traffic Wales on 0300 123 1213 or via Twitter @TrafficWalesN.

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