We are famed for the quality of our award-winning PAS128 compliant Utility Surveys. Whether we are working to a custom specification or the latest PAS128 specification, our mission is simply to locate and accurately map as many utilities in as many environments as possible.
Our very thorough working methodology, backed up by a stringent and in-depth quality control procedure, is designed to ensure that we find all detectable utilities in a given environment.
Using the very latest Radar technology, we provide a fast review of multiple potential utility installation routes, helping you choose the safest, most cost-effective and potentially quickest path before any ground is broken.
Our Route Proving Assessments identify detectable utilities, structures, and obstructions, delivering plans that highlight the optimal path with the least resistance through each specified area. We also generate a long section of detected features and utilities that will be encountered along the path of least resistance.
Our utility surveys and installation route proving assessments will show the depths of detected buried structures, anomalies, changes and types of construction and utilities. There is also the option to upgrade to a fully PAS128:2014-compatible survey.
To ensure the best results, we use a mixture of GPR systems in conjunction with our in-house methodologies. We use state-of-the-art equipment manufactured by IDS Georadar and Kontur. The benefits of the array technology is the speed of collection and the ability to visualise the subsurface environment rather than relying on a joining-the-dots type approach.
This now proven technique is designed specifically for large scale projects. Initially the survey route is fully scanned and subsequently imaged using HDAGPR (High Density Array Ground Probing Radar) technology. The collected data is analysed for all detected utilities, buried structures, features, anomalies and construction changes. We then add these entities to a topographical survey to provide the visual relationship between above ground features and the below ground environment. This type of survey will show all detected items as referenced above, but will not provide information on service types, utility diameters or formations. It will simply provide an overview of the subsurface, without causing any disruption to traffic or pedestrian flows.
Our expert team will then engage with the scheme designers to discuss the findings of the GPR only survey and identify areas where there are potential design clashes or where more detailed information may be required. These areas can then be strategically updated through invasive cover lifting and through the deployment of EML technology, and, if required, updated to comply with the PAS128:2022 specification.
The real benefit of this type of survey is that the invasive, disruptive and expensive manual works are kept to a strategic minimum, whilst the project team are supplied with the information, they need to safely deliver the scheme on time and to budget.
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