Client: Taylor Wimpey West Scotland

Value: £3.75m

Contract: ICE Conditions of Contract, 6th Edition

Project Description:

Construction of a new distributor road along with associated infrastructure works, to create access and provide services to a number of future residential development areas as well as to a new school.

The overall site has varying ground conditions and the client’s site investigation identified that the area in question had a high water table which would make drainage installation problematic, particularly when it was necessary for the drainage to be designed at depths of up to 5m in areas.

Stabilisation of the ground was proposed by the client as an option within their tender documents although this element of the project was to be awarded on a design and build basis to achieve the clients specification of 15% CBR at the top of capping and settlement criteria of </=25mm.

Following thorough analysis of options during the tender process to ascertain the best stabilisation method for the site, Luddon proposed mass in-situ soil stabilisation. This was proved to be the most cost effective and overall best technical solution.

The stabilisation method formed a critical part of the overall works since the stabilised ground enabled the drainage to be installed quicker and safer without the need for de-watering.

The ability to work in all weathers whilst carrying out the stabilisation process also provided us with the confidence that we could meet our client’s tight deadline for the provision of access to the new school.

Works Included:

• Bulk earthworks
• Stabilisation to existing ground for new road construction
• Installation of storm and foul drainage
• Service installation
• Road construction
• Outfall to Clyde works
• Construction of storm water pond and swale

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