Contract Details

• The construction of approximately 8km of new and improved roads together with numerous structures located within a narrow, densely populated valley environment.
• This current ECI project was awarded to Costain Ltd in September 2004 with a 13 week Interactive Development phase to develop a Target Cost, followed by a 13 week Value Engineering Period.
• Walters UK worked closely with Costain during the pre-qualification and tender stage including full representation at all pre and post-tender client interviews and workshops – a major factor in the decision to appoint Costain as Main Contractor.
• Based on the Clients design an initial target cost for earthworks of £9 million was agreed during the Interactive Development Phase. By working as a co-located, integrated team with the Main Contractor, Client and design team, this figure was subsequently reduced by £3 million as follows:
• Off-site disposal reduced from 235,000 m³ to on-site disposal of approximately 85,000 m³.
• Excavation quantities reduced from approx 300,000m³ to 180,000m³.
• Disposal of contaminated material (domestic rubbish) reduced from 13,000m³ to 4,000m³ by additional S1 undertaken during the Value Engineering Phase.
• To remove the need for a river diversion, the team proposed relocation of a roundabout into the base of the adjacent mountainside requiring additional rock excavation. This additional cost was subsequently negated by crushing the resultant rock to replace approx 15,000 m³ of imported granular fill.