In Hastings Town Centre, we conducted a comprehensive underground utility mapping of the designated survey area, highlighted in red on the provided site plan. Our team used a combination of Electromagnetic Locators (EML) and Ground Penetrating Radar (GPR) to identify all utilities, which we marked on the ground with spray paint.
Next, we transferred this information onto a topographical survey and delivered the final drawing to our client in AutoCAD format. We also compared all identified utilities with existing statutory records for the site, ensuring the accuracy and completeness of our survey.
We meticulously documented all features within the site according to the provided specifications. The survey included building outlines, walls, kerbs, footways, surface changes, and services, with manholes and inspection covers marked with cover levels only.
We also recorded any trees with a trunk diameter above 150mm, noting their trunk diameter, canopy size, and approximate height. All buildings were represented by their nearest flank walls, with levels taken to the ridges and eaves, depending on visibility from the site and public highway. Additionally, spot levels were recorded at 10-meter intervals and at changes in gradient.
We used Ground Penetrating Radar (GPR) to thoroughly investigate the subsurface features within the designated area, as shown on the provided site plan. GPR is a non-invasive technique that employs radar pulses to image underground, making it highly effective for detecting a variety of utilities and structures.
We conducted the GPR survey using high-frequency radar equipment, specifically the Raptor GPR array, to ensure the capture of high-resolution data.
"Survey works were carried out using a combination of EML & GPR methods, with all utilities being physically marked on the ground with spray paint."