North Acton to Hanger Lane Cutting Remedial Work

Location

London:

Description

Transport for London (TfL) has identified that cuttings CTS 7 and CTS 8 between North Acton and Hanger Lane require remedial works to stabilise the cutting. The combined length of the cuttings is approximately 1100m. The assets are susceptible to pore pressure levels (the pressure of groundwater in the soil or rock) and displacements and are considered a high risk. Due to the increased number of prolonged rainfall events over the recent years, soil pore pressure build up has become more common and the asset is at greater risk of failure. In 2017, TfL Engineering produced a detailed design for remediating the asset which consisted of; Discrete Bored Piles Discrete H-Piles King Post Wall Asset drainage Re-grading After the detailed design was completed, the business decision was to pause the project due to funding constraints faced by the business. Due to the criticality of this asset and the continued deterioration of the cutting, the project has been reinitiated.

Renewal Options

A two stage contract is being used on this project. Stage 1 consists of completing the detailed design and agreeing access arrangements for undertaking the works. Stage 2 consists of delivering the accepted detailed design. After completing stage 1, TfL will review the projects feasibility and will decide if the supplier is to continue with delivering the stage 2 works. If TfL decides to proceed, then a notice to proceed will be issued to the supplier.

Award Criteria

CPV Codes

• 45200000 - Works for complete or part construction and civil engineering work

Indicators

• Options are available.

Other Information

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