SUI, drainage investigation and survey across Lismore, Ballina and the Northern Rivers. No job too small. No project too large. From small contractors to major infrastructure.
The Northern Rivers is flood country. The 2022 floods through Lismore, Ballina, Murwillumbah and the Richmond and Tweed valleys left services displaced, buried under silt and rebuilt in a hurry, and the recovery works, the house raisings and relocations and the new flood-resilient infrastructure are still the dominant work. Finding what is actually in the ground, rather than what the pre-flood plan shows, is the first step in most of those jobs.
Essential Energy supplies the electricity, Rous County Council the bulk water, and Lismore, Ballina, Byron, Tweed and Richmond Valley councils the retail water, sewer and stormwater. The Pacific Motorway and the Bruxner Highway are Transport for NSW corridors. The ground is alluvial floodplain with basalt soils on the plateau around Lismore and Alstonville and coastal sand at Ballina and Byron Bay, so the locate method changes from the valley floor to the ridge.
The same accredited crew and AS 5488-2022 report across Northern Rivers and NSW, whether it's a single locate or a tier-one program.
Detection, tracing and marking of underground services using electromagnetic and ground-penetrating radar, to the accuracy each site demands.
Engineering-grade utility survey and drafting to AS 5488-2022, delivering 12D/DWG models, BIM-ready 3D strings and GDA2020 deliverables.
Safe vacuum potholing to positively identify services and achieve the highest Quality Level (QL-A), without damaging the asset.
GPR concrete imaging before cutting, coring or drilling. Locates rebar, post-tension cables, conduits and voids. Radiation-free, no site shutdown.
Push-rod and crawler camera inspection, connectivity mapping and condition reporting for pipes up to 2 m in diameter.
USTs, concrete substructures, voids and rock seams, plus unmarked-grave, forensic and archaeological investigations.
Yes. The field locate finds the services as they are now, not as the pre-flood plans show them, and the survey records the current positions and depths for the reconstruction design.
Essential Energy for electricity, Rous County Council for bulk water, and Lismore, Ballina, Byron, Tweed or Richmond Valley council for retail water, sewer and stormwater, with Transport for NSW owning the motorway and highway assets.
The wet silt and basalt-derived clays absorb the signal, so EM tracing and potholing do most of the work on the valley floor. Radar reads well in the coastal sand at Ballina and Byron Bay.
Yes. Northern Rivers work is scheduled in runs so several sites share one mobilisation, with urgent jobs mobilised individually.
Send us the site and program. We come back with a same-day quote and deliverables to suit.
Talk to our SUI team