A: Infrastructure projects face inherent uncertainty from ground conditions (revealed only during construction), utility clashes (survey limitations), linear project variability (changing conditions over distance), and environmental constraints (protected species, contamination). We address this through ±5-8% accuracy ranges and explicit risk allowances for these factors.

A: Yes, we use mass haul analysis to optimize cut/fill balance, minimizing import/export costs and environmental impact. Our BIM workflows calculate earthworks volumes along the entire route and model different vertical alignment scenarios to find the optimal balance. We can save projects 10-20% on earthworks costs through optimization.

A: We systematically assess utility diversions based on survey data, identifying clashes and protection requirements. Our estimates include diversion works, protective measures, temporary diversions, and utility company charges. We factor in risk allowances for unexpected utilities as surveys are rarely 100% comprehensive.

A: Absolutely. We have extensive experience costing bridge structures (RC and steel), retaining walls, culverts, and underpasses. For complex structures over 50m span, we work with specialist structural engineers to ensure accuracy. Our estimates include foundations, substructures, superstructures, parapets, and finishes.

A: We review geotechnical reports to understand ground risks and include appropriate contingencies (typically 10-15% for ground-related risks). We separately identify rock excavation allowances, contamination treatment, ground improvement, and dewatering requirements based on site investigation findings. We can model different ground scenarios if uncertainty is high.

A: Yes, we regularly prepare phased delivery estimates that maintain operational access. We model traffic management costs, night/weekend working premiums, diversion routes, and the productivity impact of working in constrained conditions. This is critical for highway improvement projects and works in urban areas.

A: For route optioneering, we can typically compare 2-3 alignment alternatives within 5-7 days. Our BIM workflows allow rapid calculation of earthworks volumes, pavement quantities, and structure requirements for each option. This is valuable during early design stages when route selection is still being finalized.

A: Fees vary based on project type, length/scale, and complexity. As a guide: - Local roads (500m-2km): £12,000-20,000 - Major roads (2-10km): £25,000-45,000 - Major infrastructure (10km+ or complex): £45,000-80,000+ - Bridge structures: £8,000-25,000 per structure (depending on span/complexity)

Express service carries a 30% premium where available. Contact us for a specific quote.