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West Anglia Main Line (WAML) Civils

Civil Engineering

November 2017 - December 2018


Lea Valley, London

Download full PDF case study

As part of the overall WAML scheme the Pod-Trak Civils team undertook the delivery of the civils and groundworks required for the new 6Km third line.

The delivery of the civils package was run alongside the multidiscipline scope of OLE and Permanent Way. The scope included:
• Ground stabilisation
• Formation and grading
• Track & Cross Track Drainage
• Deep Drainage
• UTX construction
• Elevated troughing routes
• Bottom ballast
• 4nr concrete OLE gravity bases
• Culvert strengthening
• Geogrid reinforced bund
• Retaining walls for noise barriers

The project was split in nine zones, with a minimum of two zones running concurrently at any time.

Challenges and Solutions
The biggest challenge across the project was access. By working daily with the client, other contractors and our own P-Way/OLE Team, a collaborative team effort enabled all parties to progress with their planned works. Key to this success was the daily logistics meetings to agree phasing of critical activities and sequencing of concurrent packages. At all times the existing lines remained open with work being carried out under ALO and utilising excavators with height & slew restrictors.

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