01438 841300

UTILITY SURVEYS

Underground Utility mapping surveys are detailed accurate drawings identifying all underground utilities and service routes, including gas, water, telecommunications, electricity and drainage, as well as voids within a specified area. The underground utilities are normally shown on top of a topographical survey plan showing all above ground features such as buildings, boundaries, services covers and site levels. Normally presented digitally in CAD format, we are also able to provide scaled paper copies.

Accurate information on services located underground is an important stage in the development of a site. Terrain Surveys offer a full range of underground tracing & mapping solutions to suit our clients needs. Whatever the project that you are considering, a thorough accurate survey drawing will reduce the risk of cable strikes and downstream mistakes caused by unforeseen issues.

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  • We will work with you to tailor a specification and proposal that suits your requirements. Depending on the size and type of your project we can provide the information important to you.
  • Using modern technology we will provide you with the most cost effective solution, delivering your information quickly.
  • Using only experienced land surveyors you can be confident that our topographical surveys are drawn to the highest standard.
  • With our extensive survey experience our surveyors will provide additional information that may be vital to your successful project, such as neighbouring building heights.
  • Survey drawings are supplied in various 2D and 3D CAD formats and paper copies can be provided.
  • Should you require a topographical survey to support a BIM project we can provide you with a 3D surface model solution in Revit format.
  • Additional services that we are able to offer to support your project include measured building surveys, utility surveys and CCTV drainage surveys.

If you have a survey requirement please get in touch by calling 01438 841300 or email enquiries@terrainsurveys.co.uk.

For a fast response quotation use the ‘contact us’ facility and provide us with as much information as you can. When specifying the survey area it is important to provide us with a clearly marked site plan.

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Frequently asked questions:

What is a utility survey?

A utility survey uses Ground Penetrating Radar (GPR) and Electro-Magnetic Locators (EML), to analyse reflected signals from structures, services, buried objects beneath the ground. This creates an overall plan of what is locate underground this is then added to a topographical survey to create and accurate survey drawing for the client

What is the difference between Ground Penetrating Radar (GPR) and Electro-Magnetic Locators (EML)?

GPR works by sending a signal into the ground and listening for reflections from that signal.

EML works by detecting the electromagnetic signal that is emitted by power cables, or the energy from nearby power cables which has ‘coupled’ onto metal services.

What are the benefits of having a utility survey undertaken?

  • Reduce project planning time
  • Minimise risk
  • Comply with the health and safety regulation

How effective is GPR?

Due to equipment limitations and certain ground conditions, it is impossible to guarantee the overall effectiveness of GPR, this is why it should always be used in conjunction with standard electromagnetic techniques.

Where can I find a specification of works for Underground Utility Survey Mapping?

PAS 128 is a British Standards Institution (BSI) document that helps clients to set the required level of Utility Survey to fulfill their criteria, with the added assurance that the correct process of detection, verification and location of utility assets has been adhered to.

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