45,000,000

Overview

Lots (2)

• Track Bed Investigation Framework - England & Wales

  The specification for the Track Bed Investigation Framework covers the following track bed investigation and associated works, and site & factual reporting which are to be provided for track sites in England & Wales: Standard Track Bed Investigation: • Determining the condition of the existing track bed and sub-grade • Assessing the condition of the existing lineside drainage. • Dynamic Cone Penetration (DCP) to determine the soil structural properties. • Trial trenches to determine drainage paths and lateral variation of track bed materials. • Categorising of Spent Ballast for disposal • Measuring structural constraints (clearances) to support the construction phase and compliance with COM Regulations 2015 (Design Risk Register) to determine construction risks and mitigations. Deep Track Bed Investigation • Deeper window sampling and Standard Penetration Test (SPT) using heavy probing techniques for investigating Track Bed Stabilisation sites. Additional Works and Other Investigation Techniques • Stiffness Measurement surveys using Falling Weight Deflectometer (FWD), and Light Weight Deflectometer (LWD). • Drainage level surveys/topographical surveys to support the design track of drainage systems. • Concrete coring of slab track or other associated foundations • Material testing • Rail and sleeper deflection monitoring using cameras, Geophones or similar.

  £40,500,000

• Track Bed Investigation Framework - Scotland's Railway

  The specification for the Track Bed Investigation Framework covers the following track bed investigation and associated works, and site & factual reporting which are provided in Scotland: Standard Track Bed Investigation: • Determining the condition of the existing track bed and sub-grade • Assessing the condition of the existing lineside drainage. • Dynamic Cone Penetration (DCP) to determine the soil structural properties. • Trial trenches to determine drainage paths and lateral variation of track bed materials. • Categorising of Spent Ballast for disposal • Measuring structural constraints (clearances) to support the construction phase and compliance with COM Regulations 2015 (Design Risk Register) to determine construction risks and mitigations. Deep Track Bed Investigation • Deeper window sampling and Standard Penetration Test (SPT) using heavy probing techniques for investigating Track Bed Stabilisation sites. Additional Works and Other Investigation Techniques • Stiffness Measurement surveys using Falling Weight Deflectometer (FWD), and Light Weight Deflectometer (LWD). • Drainage level surveys/topographical surveys to support the design track of drainage systems. • Concrete coring of slab track or other associated foundations • Material testing • Rail and sleeper deflection monitoring using cameras, Geophones or similar.

  £4,500,000

Award outcome

Award date

21 October 2025

Contract period

— → 25 September 2030

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