The electrification of the railway meant faster, greener and quieter journeys.
At Middleton Railway viaduct, Manchester, Balfour Beatty Rail Projects Ltd were charged with electrifying the line. They Installed steelworks to carry the new gantries which hold the electric cables.
These huge loads of up to 200 kn meant the viaduct walls had to be strengthened. The anchors for the gantries were installed over a distance of 2 miles and were around 6m long, going in at a 45 degree angle.
In some places it was necessary to drill through the viaduct horizontally to enable installation of the cantilever gantries.
As the line was live, work had to be done out of hours.