Survey data that keeps major programmes moving.

Infrastructure & Transport Surveying

Infrastructure and transport programmes in the North West are among the most demanding survey environments we work in. Large-scale civils schemes, active rail corridors, live transport hubs, complex structures, multiple stakeholders and programme timescales that do not flex for survey delays. The survey firm on an infrastructure programme is not a preliminary supplier — it is a programme dependency. Get it wrong and the programme waits.


Site Surveying Services has been delivering survey across infrastructure and transport programmes in Lancashire and the North West since 1997. We hold Constructionline Gold, PAS 128 accreditation and RICS regulation. We mobilise quickly, we deliver to the accuracy specification the engineering requires, and we stay with the programme through every stage — from feasibility topographic survey through to as-built verification at handover.

Environmental & Energy
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The Challenge:

Surveying for Infrastructure & Transport Projects

Infrastructure projects operate in fast-paced, high-stakes environments where accuracy, coordination, and safety are non-negotiable.

Whether it’s a highway upgrade, bridge rehabilitation, or airfield resurfacing, every decision depends on reliable spatial data. Even the smallest error in levels, alignment, or utilities can lead to costly rework, construction delays, and compromised safety. Surveying partners must work seamlessly alongside contractors and engineers, providing data that performs under pressure and ensures that progress on the ground matches precision in design.

Why Accuracy Matters...

Accurate, dependable survey data keeps infrastructure projects on time, compliant, and within budget, allowing clients to:

Build safely

ensuring works are delivered within strict tolerances and safety margins.

Minimise disruption

reducing rework, traffic management time, and site revisits.

Deliver design confidence

aligning construction precisely with engineering models and design intent.

Meet regulatory compliance

ensuring geometric and spatial standards are achieved.

Futureproof infrastructure

providing datasets that support long-term maintenance and upgrades.

Innovation in Action

Infrastructure surveying demands accuracy and adaptability.

By combining traditional engineering expertise with advanced technologies like mobile scanning, UAV LiDAR, and automated 3D modelling, we capture vast, complex sites in record time while maintaining exceptional precision.

This innovation translates to fewer site visits, faster decision-making, and data that stands the test of time – vital for projects with long operational lifespans.

The Brief As part of a major facility expansion at the BAE Systems site in Barrow-in-Furness, Site Surveying Services was commissioned to deliver a comprehensive PAS 128 Quality Level A …

OVERVIEW: As part of a new housing development in Ilkley, Site Surveying Services was commissioned to deliver a full package of infrastructure surveys, combining topographical, utility mapping, and CCTV drainage …

Project Overview: Colne Market Hall is at the heart of a major £6.5 million regeneration project, funded through the Colne Levelling Up scheme. The project aims to revitalise the market …

The Infrastructure and Transport Sector in the North West

The North West carries a sustained and growing infrastructure investment programme across several distinct areas:

Rail infrastructure — Network Rail CP7

Control Period 7 (2024–2029) represents £44 billion of Network Rail investment nationally, with significant allocation to the North West. Station improvements, level crossing closures, track upgrades and civils works across the West Coast Main Line, TransPennine Route Upgrade and Northern Powerhouse Rail corridors all generate survey demand. Our offices in Clitheroe, Matlock, Newcastle and Bristol give us coverage across the CP7 programme.

AMP8 water infrastructure

United Utilities’ regulatory investment period to 2030 has committed billions of capital works across Lancashire, Cheshire, Cumbria and Greater Manchester. Mains replacement, treatment works upgrades, new pumping stations and reservoir works all require topographic survey, PAS 128 utility mapping, as-built survey and monitoring. We are already delivering across the United Utilities supply chain.

Major civils — bridges, tunnels, structures

The North West has a significant portfolio of existing infrastructure structures requiring survey for inspection, refurbishment and condition assessment. Bridges, viaducts, culverts, tunnels and retaining structures across the region require laser scanning, topographic survey and bathymetric survey for structural assessment programmes.

Airport infrastructure

 Manchester Airport, Liverpool John Lennon Airport and the North West’s general aviation network all generate survey demand for airside topographic survey, building survey and infrastructure works.

Port and maritime infrastructure

The Port of Liverpool, Salford Docks and smaller harbour facilities across the North West coast generate survey demand for topographic, bathymetric and structural survey.

Energy infrastructure

Substations, overhead line routes, underground cable corridors and renewable energy connection infrastructure across the North West all require survey at design, construction and as-built stages.

Project Types We Support

Rail corridor and station survey

topographic survey along active rail corridors, station measured building surveys, platform geometry survey, bridge and structure survey adjacent to live rail. Possession planning, protection officer requirements and safety certification all part of our approach on live rail surveys.

Water infrastructure survey

topographic survey, PAS 128 utility mapping and as-built survey for AMP8 mains replacement, treatment works, pumping stations and reservoir programmes across the United Utilities network. We know what the UU supply chain requires and our accreditations are in place.

Bridge and structure survey

laser scanning, topographic survey and bathymetric survey for bridge inspection, condition assessment and refurbishment design. We have surveyed bridges across Lancashire and the North East — from urban river crossings to remote moorland structures.

Tunnel and underground structure survey

laser scanning and SLAM scanning for tunnel inspection, as-built recording and condition survey. Confined space methodology, phased access and safety compliance throughout.

Airport and airside survey

topographic survey, setting-out and as-built survey within airport security perimeters. Airside working experience, airside pass compliance and coordination with airport operations.

Port and maritime survey

topographic and bathymetric survey for port facilities, dock infrastructure and coastal works. The Apache 4 USV for waterside and basin survey without requiring personnel in or on the water.

Energy infrastructure survey

topographic survey along overhead line routes and cable corridors, substation survey and PAS 128 utility mapping before any excavation on energy infrastructure sites.

Major civils — earthworks and structures

topographic survey, control network installation, setting-out engineers, 3D machine control and as-built survey for major civils programmes. Over 600 setting-out programmes delivered in 2025.

Who We Work With in the infrastructure Sector

Tier 1 infrastructure contractors

Kier, BAM Nuttall, Costain, Morgan Sindall and their equivalents working on major NW infrastructure programmes. We are already delivering for Kier and BAM Nuttall. We hold Constructionline Gold, PAS 128 accreditation and CDM compliance — the pre-qualification standard required.

Network Rail supply chain

Principal contractors and specialist contractors delivering CP7 works across the North West rail network. Survey on active rail infrastructure requires specific working practices, possession planning and safety certification — our team understands the rail environment.

United Utilities supply chain

Framework contractors and specialist contractors delivering AMP8 water infrastructure works across Lancashire, Cheshire, Cumbria and Greater Manchester. We are already active in this supply chain.

Infrastructure consultants and design firms

Topographic survey, bathymetric survey and BIM model creation for design teams working on major infrastructure schemes.

Port and harbour authorities

Bathymetric and topographic survey for port and maritime infrastructure management, dredging and development.

Energy companies and their contractors

Survey for energy infrastructure construction, maintenance and asset management.

drone photogrammetry survey river bridge 3D point cloud aerial mapping for flood assessment and infrastructure inspection

Our Services

Using LiDAR, UAVs, and hydrographic drones to capture precise data in challenging environments.

Why choose site surveying services

On site. On spec. On time.

fast turnaround

Get a quick quote and a survey team prepared for instruction. When the programme window opens, we're ready.

PAS 128 Accredited

British Standard utility mapping. Quality Level B means physical verification of every service - not just surface evidence.

Lancashire-Based

Headquartered in Clitheroe. We know the North West - the sites, the contractors, the programmes. Local knowledge backed by national capability.

Programme-Critical

Data that works in your environment from day one. BIM to your EIR. CAD to your spec. No reprocessing. No delays to the design team.

Frequently Asked Questions

What survey is required for a Network Rail CP7 programme?

This depends on the specific works scope. For civils works adjacent to or on the rail infrastructure — station works, bridge repairs, embankment stabilisation, level crossing — topographic survey of the works area, PAS 128 utility mapping before any excavation, control network installation, setting-out engineers and monitoring of structures adjacent to the works are all typically required. Survey on live rail infrastructure requires possession planning, protection officer requirements and rail safety certification — our team is experienced in rail working environments and can advise on the requirements for your specific scheme at the time of enquiry.

AMP8 water infrastructure programmes typically require topographic survey of the works area, PAS 128 utility mapping to Quality Level A before any excavation — water infrastructure sites carry significant buried service risk — setting-out engineers for construction, monitoring where works are adjacent to existing assets, and as-built survey at completion. We are already active in the United Utilities supply chain in the North West and hold Constructionline Gold, PAS 128 and CDM compliance — the accreditation profile the UU supply chain requires.

Yes — with appropriate possession planning, protection officer arrangements and safety certification. Survey on live rail infrastructure requires specific working practices that differ significantly from standard construction site methodology. Our team understands the rail environment and we produce method statements that reflect the specific requirements of each rail survey programme. Contact us to discuss your specific scheme and we will confirm the working practices and certifications applicable.

This depends on the structure type and the contract tolerance. For most civil engineering applications — drainage, earthworks, structures — ±10–20mm in plan and ±5–10mm in height is appropriate. For rail track alignment and airport pavement, tighter tolerances of ±3–5mm in plan are typically required. The control network accuracy specification should be matched to the setting-out tolerance in the contract before installation begins. We confirm achievable accuracy for your site conditions and programme at the time of scoping.

Yes. We are already delivering survey programmes across the United Utilities AMP8 supply chain in Lancashire, Cheshire, Cumbria and Greater Manchester. We hold Constructionline Gold, PAS 128 accreditation, RICS regulation and CDM compliance — the standard accreditation profile required for United Utilities framework supply chains.