We specialise in underground asset locating services across Darwin and the Northern Territory. Our trained technicians use industry-leading technologies such as Ground Penetrating Radar (GPR) and cable locators to accurately detect and map underground infrastructure before excavation begins.
Combined with our expertise in non-destructive hydro excavation, we provide a comprehensive solution for safely locating, identifying, and protecting existing underground assets. Whether your project is in an urban environment, a remote location, or a high-risk defence site, JSM Civil ensures that all subsurface services are located and marked to prevent costly and dangerous utility strikes.
Underground asset locating is the process of identifying and mapping subsurface utilities and infrastructure prior to excavation or construction. This includes locating:
At JSM Civil, we combine non-invasive detection tools with targeted hydro excavation to expose and verify underground services without damaging them. This process ensures accurate depth, location, and condition information, reducing risk and enabling informed planning for all stages of the project.
We utilise advanced equipment and industry-standard techniques to ensure the precise location of underground services:
GPR transmits high-frequency radio waves into the ground and records the reflected signals to detect objects, changes in material, and voids. It is effective for locating:
GPR is particularly useful in areas where metallic utility locating methods are ineffective or where as-built drawings are unreliable or unavailable.
Our cable locators use electromagnetic fields to detect metallic utilities such as:
These tools allow us to accurately trace the route, depth, and location of conductive utilities, even in congested areas with multiple overlapping services.
Once utilities are located using GPR and electromagnetic locating, our team may use hydro excavation to safely expose and visually confirm underground services. This step is crucial when planning construction in high-risk areas or near live services.
Hydro excavation is a non-destructive method that uses high-pressure water to break up soil while a vacuum system extracts the debris. This ensures utilities are not damaged during exposure.
Prevent Utility Strikes
Ensure Compliance with Regulations
Improve Project Planning and Design
Reduce Excavation Costs
Suitable for All Site Conditions
JSM Civil provides trusted, professional underground asset locating services backed by certified systems, experienced personnel, and advanced technology.
We operate in full compliance with Australian safety, quality, and environmental standards. Our certifications include:
These certifications reflect our commitment to delivering safe, accurate, and environmentally responsible services across all projects.
Our trained technicians are experienced in asset locating across various industries, including:
In addition to asset locating, we offer a full suite of trenching, directional drilling, hydro excavation, and civil construction services, allowing us to provide end-to-end solutions for utility installation and infrastructure development.
Our integrated approach reduces subcontractor reliance, streamlines project management, and ensures consistent quality across all phases of work.