Network Rail has released this video showing a £10M bridge being lowered into place over an operational mainline railway in South London.
Passengers travelling between East Croydon and London Bridge experienced no disruptions when the 565t bridge was launched overhead in December 2014.
Tennison Road Bridge in South Norwood, Croydon, was placed across 10 operational rail lines, using a hydraulic strand jack system.
Network Rail scheme project manager Shane O’Connor said: “By using technology and engineering expertise we were able to keep trains running and passengers travelling while we undertook what would otherwise have required a complete closure of the railway”.
The new bridge is approximately 3.5m wider than its predecessor, with bigger footpaths and carriageway.
Network Rail route asset manager Mark Huband said: “The old bridge had served the local community for over 90 years, but it had become outdated and needed replacing. The new bridge will better serve those who use Tennison Road, providing safer access for motorists, cyclists and pedestrians.”
Graham Construction project manager Rory McFadden said: “Graham is delighted to have successfully completed the replacement of the Tennison Road Bridge and associated highway works. While the project was not without its technical challenges, these were overcome through innovative engineering solutions and a collaborative and proactive approach by all parties.”