Bridge Remediation

The Old Elvet Bridge in Durham, UK—a Grade I listed medieval structure—was suffering from water ingress that threatened the integrity of its historic masonry. Traditional waterproofing methods were rejected by Historic England due to the need to preserve the ancient monument, and the project had to be completed with minimal disruption to public access and only during dry weather.

The Titan Solution

Concrete Canvas Hydro™ (CCH8™) was selected as a non-invasive waterproofing solution. The installation involved removing flagstones and compacting the substrate, then laying and thermally welding longitudinal layers of CCH8™ across the bridge deck. Each section was hydrated and re-covered with the original substrate and flagstones, allowing the bridge to remain open throughout the phased installation.

Concrete Canvas® (CC) is a Geosynthetic Cementitious Composite Mat (GCCM), a factory-produced material combining cement within geosynthetic layers that hardens when hydrated for erosion control and weed suppression.

Achievement

A total of 1,100m² of CCH8™ were successfully installed over the summer in four phases by Durham County Council and Sean Carr Lining Technologies, preserving the historic structure without invasive methods and maintaining uninterrupted public use of the bridge.