A new 1500t reinforced concrete rail underbridge was rolled into position below the Shrewsbury to Crewe railway line over Christmas. Main contractor Christiani & Neilsen used two 14 axle Econofreight trailers to move the 30m by 11m structure some 44m into position.
The bridge, on the northern outskirts of Shrewsbury, will carry the new A5124 Battlefield link road between the A49/A53 junction and the A528 Ellesmere road. Christiani & Neilsen won the £2.3M bridge contract last July with an alternative bid based on the use of low-loaders. The link road is due to open in March, before which the contractor must build retaining walls to support the bridge abutments and railway embankments.
Construction began on Christmas Eve with lifting of the rail tracks and excavation of the embankment. Before this Christiani & Neilsen had fixed 200t of steel reinforcement and poured more than 500m of concrete to construct the bridge structure, with its 1.6m thick deck, off line, and pre-piled the foundations.
Client for the project is Shropshire County Council, whose engineer is the Babtie Group.