Radford Mill Bridge: 2007

Project

4.6m span limestone arch carrying single carriageway had failed load assessment.

The soffit of the bridge had suffered from a significant loss of stone and mortar.

Unable to close the road; no suitable detour for local traffic.

Environmentally sensitive area to be maintained.

Solution

Large areas of stonework to the soffit were initially rebuilt to reinstate the integrity of the arch.

Transverse and curved longitudinal stainless steel reinforcement was installed to increase the calculated strength of the bridge to current axle load requirements.

Areas of the spandrel and parapet walls were stitched and / or rebuilt.

Asphalt road surface was increased by 100mm as part of the design.

To assist the local ecology bird nesting boxes were attached to the soffit of the bridge.