Pont Briwet Transportation Improvement Scheme (outline design)
|Designers:||Tony Gee and Partners / Hewson|
|Contractors:||Hochtief UK Ltd.|
|Completion Date:||July 2015|
YGC’s Environment Team co-ordinated the environmental assessment to support the planning submission for the replacement of a Grade II-listed road/rail viaduct spanning the Dwyryd estuary in the Snowdonia National Park.
The structure was in poor condition, which posed a threat to the road and rail links. The viaduct’s closure would have had a significant impact on the region’s transport network, economy and employment capability. It was therefore decided to replace the current, inadequate provision with a modern, safe and sustainable structure. Funding was provided by the European Regional Development Fund, Network Rail, the Welsh Government and Gwynedd Council.
Given the sensitive nature of the site and surrounding environment there was the potential for the scheme to have significant environmental effects. Features of particular concern included:
Pen Llŷn a’r Sarnau SAC, Morfa Harlech SSSI and the Gwaith Powdwr Nature Reserve;
Protected species including otters, wintering/breeding birds, migratory fish, amphibians, reptiles and bats;
Afon Dwyryd estuary;
Local residents and commuters, and;
The Grade II listed bridge.