Utility Locating

Utility locating services are used to locate and mark underground utility lines and other infrastructure, such as gas, water, and electrical lines, prior to digging or construction.

At CSA Specialised Services, we understand the importance of accurately locating underground utilities. Our utility locating services are designed to detect, trace, and map underground pipes, gas lines, sewer assets, stormwater drains, telecommunications, electrical and more.

Our utility mapping team provides services to fit any requirements -from early planning to build surveys after construction.  Our underground utility surveys use the latest mapping technology to provide a comprehensive survey of sites, regardless of size. By determining the location and condition of underground infrastructure, we can create a comprehensive report of a given area. This information allows us to confidently plan and execute work before and during excavation, minimising the risk of damage to vital underground infrastructure.

Every aspect of our work satisfies the requirements of the Australian Standard for Classification of Subsurface Utility Information (SUI), which is known as AS5488-2013.

Underground utility locating services

We provide our clients with the assurance to plan, build, and manage their projects

CSA Utility Infrastructure Services


Underground utility mapping is the process of locating and mapping underground utilities and infrastructure and done prior to digging or construction to prevent damage to the utilities and to ensure the safety of workers and the public. CSA Engineers is specialised in providing Subsurface Utility Engineering (SUE) services, one of which is underground utility mapping.

Ground Penetrating Radar (GPR)

Radio waves are used by ground penetrating radar (GPR) to take unobtrusive photographs of underground utilities. The reflected signal is analysed to determine the depth and location of underground utilities and other subsurface features. GPR is non-invasive and can be used to locate utilities without the need for excavation or other destructive methods.

Utility Design

Utility mapping design is an important step in the construction process, as it helps to ensure that new projects are planned and executed safely and efficiently, minimising the risk of utility damage and other issues. It is also important for maintenance and repair work, as it helps to accurately locate and identify utilities that need attention.

Utility Coordination

By working together and coordinating the installation, maintenance, and repair of underground utilities and infrastructure, we can help to minimise the risk of damage to the utilities, reduce the need for costly redesigns, and improve the overall safety and reliability of the infrastructure.

Utility Surveying

Utility survey is to provide accurate and reliable information about the location and condition of underground utilities, to help prevent damage to the utilities during construction or excavation, and to ensure the safety of workers and the public. We provide the findings of our investigations as various working files in different formats.

Asset Management

Asset management is an important aspect of infrastructure management and maintenance. By locating assets, organisations can ensure that the excavation can be done with peace of mind. CSA engineers provide asset management services that include an efficient collection of utility asset inventory data. They have highly trained field crews who are equipped with the knowledge and experience to access confined spaces, gather pipe sizes, invert measurements, and all other asset inventory requirements.

Subsurface Utility Engineering


Subsurface Utility Engineering (SUE) is a professional practice and a set of standards for the collection, interpretation, and management of information about subsurface utilities and underground infrastructure.


CSA Engineers specialise in providing SUE, combined with their adherence to industry standards, allows them to provide accurate and reliable subsurface utility information that minimizes the risk of damage to underground utilities during construction, reduces the need for costly redesigns, and improves the overall safety and reliability of the infrastructure.


CSA Engineers also follow other standards and regulations related to health and safety to ensure that the work is carried out safely and complies with all relevant laws and regulations.

The benefits of utility mapping

Utility mapping is the process of creating a map that shows the location and type of underground utilities, such as water and gas lines, electrical and telecommunications cables, and sewage and storm drain systems There are several benefits to creating a utility map:

  • Converting potential ‘unknowns’ into ‘knowns’, removing any speculation
  • Eliminating the need for unnecessary digging, providing an excavation-free method
  • Leading to as-built data in real-time
  • Reducing the overall cost of the project
  • Minimising downtime caused by unexpected issues and lengthy delays