Bridge of Sighs

Abstract

This article describes a project to replace the Leven Viaduct in south Cumbria. The Leven Viaduct, which was originally constructed in 1857, is a 49-span structure carrying a railroad line across the Leven Estuary in South Cumbria. Although the structure has undergone major repairs several times, the combination of aging materials and extreme weather conditions caused the structure to deteriorate to the point where it reached the end of its service life. The 16-week project required removal and replacement of most of the deck. Because of its size, one span was difficult to replace, so it was completely refurbished instead. A new direct fixing rail system was used to ensure that track was aligned precisely. Continuously welded track was used to reduce noise. The work was carried out in the spring and summer months because of longer daylight hours and to lessen weather delays. Work was suspended on days with high winds. Despite the delays and challenges, the project was completed on time and within budget.