Llannerch Bridge

Why are we doing this?

Llannerch Bridge: what should happen next?


Llannerch Bridge - a stone masonry arch bridge, being inspected by a member of staff working from suspended cherry picker van

Llannerch Bridge was a late 18th or early 19th century stone masonry bridge spanning the River Clwyd. The bridge connected the communities of Trefnant and Tremeirchion in Denbighshire. 


During flooding in January 2021 caused by Storm Christoph, a nearby oak tree collapsed into the flooded river and destroyed Llannerch Bridge as it was swept away.

The remains of Llannerch Bridge, with the River Clwyd in full flood sweeping through the bridge site and over the road and surrounding fields


Denbighshire County Council is currently looking at developing options to replace the bridge, with the following key considerations in mind:



1. The previous bridge was a Grade II listed structure. The Council will liaise with Welsh Government heritage body CADW to discuss future options for the site, as part of the planning process.


2. The course of the River Clwyd has changed significantly since the bridge was built, due to ongoing flooding events. This is part of the reason that the bridge was swept away. Natural Resources Wales will therefore form a very important part of the planning process and the Council will continue to discuss how any potential replacement for Llannerch bridge would need to be made resilient to future weather events.


3. Prior to the bridge being destroyed, the road was taking volumes of traffic which far exceeded the capacity the original road was built to cope with. The Council is aware that the route was frequently used by people wishing to access or exit the nearby A55 trunk road, especially during peak hours. The Council would like to consider whether wider works are needed on this road as part of the scheme replacement.


What do we want to know?


During September and October 2021, the Council engaged with members of the public to understand their feelings towards Llannerch Bridge to help with working to develop preferred options for the future of the site. 

Understanding how people feel and what they need from the area will help the Council to develop a business case and bid for funding to design, develop and implement a scheme at the Llannerch Bridge site which meets the needs of the community.

We will also continue to liaise with our partners in the Emergency Services, with Natural Resources Wales, CADW and Transport for Wales as part of this process.



Location: Elwy, Denbigh

  • Start date 20 September 2021
  • End date 25 October 2021
  • Methods Questionnaire - Postal, Questionnaire - Online
  • Supplier Denbighshire County Council

What we found out

Over 700 people took part in our engagement over autumn 2021.

We now aim to publish a quarterly newsletter to keep people updated on the development of this project.

When issued, newsletters will be emailed or posted direct to those who have signed up to receive them. You can also download them below:





A small number of paper copies will also be available in the following locations:

- Trefnant Village Stores

- Trefnant Chip Shop

- Salusbury Arms, Tremeirchion

- Tremeirchion Community Kiosk 

- Denbigh Library

- St Asaph Library




What difference has it made?

Related documents


Department/ service area:

Highways and Environmental Services

Full address:

County Hall
Wynnstay Road
LL15 1YN


Gwasanaethau Cwsmer / Customer Services

Contact numbers:

Phone:01824 706000