A92 Edenbank Bridge strengthening

The bridge was strengthened and refurbished to current standards, offering improved safety for central Fife trunk road users. The improvements will ensure its future durability.

Edenbank Bridge is an historic listed structure comprising three masonry arch spans over the River Eden. The bridge is located on the A92 Kirkcaldy to Dundee section of the trunk road, between Freuchie and Ladybank, in the Howe of Fife area.

During routine inspections, it was detected that the structure had suffered from water ingress defects and severe masonry deterioration. A special investigation and subsequent assessment determined that the structure was substandard in load carrying capacity. The bridge was temporarily propped to act as a safeguard until the strengthening work was carried out.

What was involved?

Specialist contractors removed the existing road, verges and infill to expose the existing masonry arches for inspection and repair. The strengthening works involved constructing reinforced concrete arches, known as ‘saddling’, inside the arches of the existing structure. The new concrete arches and saddling were then waterproofed and resurfaced, improved road drainage installed, and all exposed masonry was repaired and repointed.

Due to the restricted width over the bridge, and the depth of excavation, it was necessary to construct the works under full road closure. The alternative diversion route used the A91 and A912.

This project was subject to extensive consultation with Fife Council, the local community and stakeholders in the wider Central Fife area. Transport Scotland would like to thank them for their co-operation in the scheme development and patience whilst it was delivered.

How much did it cost?

The cost of the works was approx. £0.5 million.

When was the strengthening work carried out?

The works started on site on 14 September 2011 and were completed on 16 October 2011.

What was done to reduce the environmental impact?

An environmental review was carried out in advance of the strengthening work to ascertain the possible impact of the works and devise suitable mitigation measures to be put in place to protect the local environment.