Working for Network Rail’s contractor HOCHTIEF (UK) Construction as part of an alliance team, Tony Gee is carrying out the detailed design for the new 850m grade-separated junction.The new elevated route will carry trains over the main line, improving performance and capacity on the East Coast Main Line (ECML) by relieving the main bottleneck at the Junction where the trains between London and Cambridge currently have to cut across three of its lines.
The project involves the construction of a 29 span viaduct comprising steel girders and concrete deck, an accommodation overbridge, approach embankments, associated earthworks and drainage.
The site is bounded by a number of local nature reserves, so mitigating the environmental impact of the scheme and enhancing biodiversity are key considerations. Measures include the provision of beetle banks, hibernacula, secondary ponds and extensive landscaping and planting.
Timelapse video of the lift reproduced by kind permission of Network Rail.