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

A477 Pembroke Dock to Sageston Roundabout from 12/10/2020 (Daytime) – Fibre Network Scheme

Where and Why?

Site investigation work will be undertaken from 12/10/2020 for up to two weeks on the A477 between Waterloo Roundabout (Pembroke Dock) to Sageston Roundabout to prepare for installations of fibre optic communications for intelligent transport systems.

A lane closure with temporary two-way traffic signals will be used to protect the workforce and the travelling public while the work is undertaken. Work will start at Pembroke Dock moving east via A4075 Nash Fingerpost Junction, Carew Roundabout and Sageston Roundabout. The lane closure will be local to the area being worked on and moved will be moved as work progresses. All work will be undertaken in day time hours.

The Welsh Government is delivering a multi-million pound upgrade and extension scheme to its fibre optic communications network. This network provides the backbone for intelligent transport systems to manage the safe operation of the motorway and trunk road in Wales, from CCTV cameras to electronic messages, to traffic counters and emerging digital highway technologies. These systems ensure that our emergency services receive key information when it’s most needed, help to minimise congestion and to deliver safety measures whilst providing data for future road schemes.

The programme will provide resilience for our existing fibre network to help us ensure critical systems and information are always available to our teams and for the safety of road users.

Diversions and Safety Measures

The works are being carried out during day time hours to allow the work to progress effectively.

Our contractors will be implementing safe methods of working to adhere to physical distancing measures. Within the constraints, we are taking every opportunity to maximise the number of workers on site and progress the work as efficiently as possible.

The A477 will have a lane closure with temporary two-way traffic signals working east from Pembroke Dock. While the lane closure is in place, its effect on traffic will be monitored to ensure there is no adverse impact and if necessary, to allow it to be removed as soon as it is safe to do so.

Programme of traffic management restrictions

A477 Waterloo Roundabout, Pembroke Dock to Sageston Roundabout. Lane closure with temporary two-way traffic signals, moving east from Pembroke Dock. Day time on weekdays only from 12/10/2020 for up to two weeks (23/10/2020). 



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


Call the Traffic Wales information line
0300 123 1213
Contact us