Overview
Terrain Surveys were commissioned to undertake a PAS128 Type B M2 utility survey at London Gateway Port, one of the UK’s most advanced deep-sea ports and logistics hubs. Situated on the north bank of the River Thames, London Gateway is a key part of the country’s supply chain infrastructure, combining a major container port with one of Europe’s largest logistics parks. The site continues to expand, with ongoing development focused on improving connectivity and supporting increased freight capacity.
As part of this continued growth, Terrain Surveys were instructed to carry out a utility survey across an area of road junction and surrounding swale features, covering approximately 50,000m². The survey was required to support the design development of a new port access road, making accurate mapping of existing underground services critical to the success of the project.
Survey
Due to the location of the works within an active road junction, careful coordination was required prior to mobilisation. Terrain Surveys worked closely with the client to ensure appropriate traffic management measures were implemented, allowing safe access to the site while maintaining operational flow within the port environment.
Once on site, our experienced utility survey team carried out a PAS128 Type B M2 survey using a combination of Electro-Magnetic Location (EML) and Ground Penetrating Radar (GPR). This dual-method approach enabled the detection and mapping of both metallic and non-metallic utilities across the survey area, ensuring a comprehensive understanding of the underground infrastructure.
The survey covered the full extent of the junction and adjacent swale areas, capturing the location, depth and alignment of existing services. By deploying a skilled team and proven methodology, Terrain Surveys ensured that high-quality data was collected efficiently, even within a busy and logistically sensitive environment.
Results
The client was provided with a complete and accurate as-built utility drawing, giving a clear picture of all detectable underground services within the 50,000m² survey area. This information plays a vital role in supporting the design and planning of the new access road, helping to minimise risk, avoid service conflicts and streamline the development process.
By mobilising at short notice and working within the constraints of a live port environment, Terrain Surveys were able to meet the client’s programme requirements and deliver the survey outputs within the allocated timeframe. The data now forms a critical foundation for the next stage of design, enabling informed decision-making and supporting the continued expansion of this nationally significant infrastructure asset.




