Client: Bear Scotland
Project Management: Transport Scotland
Main Contractor: TSL Contractors
Project overview
TSL were contracted to remove and replace the existing Dearg Bridge, which is part of a five year upgrading scheme to widen and improve a total of seven structures located on the main A830 Fort William to Mallaig route, known as The Road to the Isles.
Design and process
The process commenced by forming a full diversion route around the existing structure by installing a temporary Bailey bridge to allow TSL to completely remove the existing structure.
This was followed by installation of the new cast-in-situ concrete bridge, which increases the bridge span from 9 metres to 14 metres and creates an improved alignment on both approaches.
The new construction consisted of 42 tonnes of stainless steel rebar, over 200 m3 of concrete and finished with traditional stone work along all parapits.
