Network Rail ensured that passengers using the lines between East Croydon and London Bridge experienced no disruptions over the past week whilst a new bridge was being launched overhead.
The new road bridge was launched across 10 operational rail lines that form the main lines into London Bridge at Tennison Road, Norwood Junction in South London commencing on Saturday 6th December 2014.
Network Rail and its contractor, GRAHAM Construction, are midway through a project to replace the original bridge with a bigger, better structure. The new bridge will have wider footways and carriageway.
The original Tennison Road Bridge has spanned the main lines between London Bridge and East Croydon since 1922. The new bridge was launched into position using a hydraulic strand jack system.
Network Rail's Scheme Project Manager, ShaneO'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 whilst the bridge was being launched”.
"It's a great step forward for Network Rail and it's also a big leap forward for Croydon, as it will soon have a much improved bridge with extended paths and a wider road."
Rory McFadden, Project Manager for GRAHAM Construction, said: "GRAHAM are delighted to have reached this major milestone on the replacement of the Tennison Road Bridge. Launching a 565 tonne bridge over 10 operational rail lines is quite a feat of engineering but the innovative methods used allowed for a controlled and safe installation. That said it took a lot of preparation in advance of the actual launch. GRAHAM would also like to take this opportunity to thank the local community for their continued support.”
Tennison Road Bridge is due to open for public use in Spring 2015.