Hydrovac service proving and potholing on both sides of the Queensland border, from Tweed Heads and Kingscliff to Murwillumbah, Byron Bay, Ballina, Lismore and Casino.
Hydro excavation cuts the ground with pressurised water and pulls the slurry into a tank by vacuum, so a crew can uncover a live service without mechanical contact. Often called hydrovac, it is the non-destructive digging method usually specified for potholing and service proving near utility networks in Northern NSW.
Dynamic runs hydro excavation in Tweed Heads with the Gold Coast fleet immediately to the north, and crews and plant move between the two operations regularly. That gives work across the Tweed, Byron and Ballina areas access to a larger pool of trucks than a single depot could hold, with Lismore, Casino and Murwillumbah reached through the same arrangement.
The state border runs straight through the urban area at Tweed Heads, and it changes more than the road signs. Assets on each side belong to different owners, built to different standards, with different notification, permit and reinstatement requirements. A job a few hundred metres into New South Wales can need different paperwork from an identical one just inside Queensland.
The first question on a border job is which jurisdiction and which asset owner apply. That decides the documentation, and sometimes the method or the reinstatement specification. Crews working between the Gold Coast and Tweed operations handle both sides regularly, so the right process is settled at scoping rather than discovered on site.
Much of the Tweed and the Northern Rivers is low-lying floodplain with the water table close to the surface. Once an excavation reaches it, the hole starts filling and the sides lose strength. A bucket and a spoil heap struggle there, because the heap runs back in and the hole keeps closing.
Vacuum recovery copes better. Water and soft ground go straight into the tank as they are cut, so the asset stays in view long enough to be measured. Keeping each excavation tight and finishing it in one go keeps the job moving. If the site is beside a canal, a drain or river flats, say so when you enquire, because it changes the unit and the plan for disposal.
Across the Tweed, Byron and Ballina areas, most bookings are service proving ahead of something else: a road or drainage upgrade, a new connection, a subdivision or a council capital project. Potholing confirms type, depth and alignment so the design or excavation that follows is based on what is really in the ground.
Telecommunications is a steady part of that mix, with conduit and cable exposed so a connection can be made or before new network works cross an existing route. Utilities use the same approach to uncover their own water, sewer and electrical assets for maintenance, and commercial builders prove services before footings and piles go in.
Plans come through Before You Dig Australia and the site is located by LADS, a Dynamic Group company, before the ground is opened. Hydro excavation then gives control at the moment of contact with the asset. It lowers the risk of a strike but does not remove it.
If the exposure is the start of a bigger dig, the follow-on plant (an excavator, a bobcat, a tipper or a tanker, each with an operator) can come through the same booking. Border programmes that outgrow the Tweed operation draw on Gold Coast units.
Service proving on subdivision, road and drainage packages across the Tweed and Northern Rivers.
Exposing water, sewer and electrical assets, with each owner’s requirements confirmed for the correct side of the border.
Conduit and cable exposure ahead of network works in the Tweed, Byron and Ballina areas.
Proving services ahead of council capital works in low-lying towns.
Services confirmed before footings and piles on commercial sites.
The core of the fleet. Truck-mounted vacuum units for hydro excavation, service exposure and material recovery.
Supplied for: Hydro Excavation, Vacuum Excavation, Vacuum Loading
High-capacity tankers, including a 16,000-litre capability, for large-volume material recovery on major projects.
Supplied for: Hydro Tankers, Vacuum Loading
High-capacity 10x4 units for larger volumes and sustained excavation and recovery programmes on major projects.
Supplied for: Hydro Excavation, Vacuum Excavation, Hydro Tankers
Safety on site
Yes. Crews and plant move between the Gold Coast and Tweed operations regularly. Tell us the site address and the asset owner when you enquire, so the notification, permit and reinstatement requirements for that side of the border are built into the scope.
Yes. The excavation will take on water, and the vacuum lifts it along with the soil. The practical questions are tank capacity and disposal, so mention nearby drains, canals or known groundwater and the unit will be chosen to suit.
Tweed Heads, Kingscliff, Murwillumbah, Byron Bay, Ballina, Lismore and Casino, served from the Tweed Heads operation with the Gold Coast fleet to the north. Those towns are covered from there rather than from a depot in each, and availability for your dates is confirmed at enquiry.
Underground utility locating delivered by LADS, part of the Dynamic Group.
High-capacity hydro tankers for large-volume material recovery on major projects.
Industrial vacuum excavation for safe, efficient exposure and removal of material.
High-pressure jetting and combination units for blocked and dirty pipe networks.
Hydro Excavation in other regions: Hydro Excavation Brisbane, Hydro Excavation Gold Coast, Hydro Excavation Sydney, Hydro Excavation Sunshine Coast, Hydro Excavation Newcastle, Hydro Excavation Wollongong, Hydro Excavation Townsville, Hydro Excavation Cairns, Hydro Excavation Coffs Harbour
Project evidence
No Tweed Heads case study for this service has been published yet. These show the same service delivered in other regions.
Related insights
Written by the people who run this work, on how jobs are planned and what changes on site.
The company began on the Gold Coast in 2003 with two operators, two vacuum excavation trucks and a shed. It now runs depots from Wollongong through to Cairns, with more than 200 assets across the wider Dynamic Group.
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Non-destructive digging removes the mechanical cutting edge from the excavation, which is what makes it suitable for work around live services. It helps reduce the risk of a service strike, but only as part of a sequence that starts well before a truck arrives.
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Read ArticleLADS, Locate & Detection Specialists, joined the Dynamic Group in 2026. It brings CERTLOC accredited underground service locating and ground penetrating radar in house, alongside the excavation and inspection fleet.
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Read ArticleTell us about the site and the work and the Tweed Heads team will respond. For urgent works, call 1300 822 878.
What to send us for an accurate hydro excavation quoteStep 1 of 6: Service
