Bulk earthworks, roads and drainage delivered to program for developers and councils

Tarnwick Civil & Earthworks builds the ground that developments stand on. We deliver bulk earthworks, roads, stormwater drainage and subdivision works for developers, councils and head contractors across South East Queensland, with our own fleet, our own survey team and supervisors who stay with a project from first cut to handover, so programs are kept and quality is checked at every stage.

• Our own fleet and survey team. We own the excavators, dozers, graders and trucks we run, and our surveyors set out and check every lot, road and pipe line.
• One supervisor from start to handover. Each project keeps one supervisor from the first cut to handover, so the client has one person who knows the site and its program.

Leadership: Tarnwick is led by its founding director, a civil engineer, with a construction manager and a survey manager who run the projects day to day.

The ground is right before anything is built on it.

Earthworks set the program for everything that follows. Developers and councils choose Tarnwick because we own our fleet, survey our own work, keep one supervisor on each project and plan for the weather, so the site is ready when the next trades arrive.

1. 1Our own fleet, ready to mobilise. We own the machines we run and maintain them in our own workshop, so we mobilise when the project needs us rather than when hire equipment is free.
2. 2Survey checks at every stage. Our surveyors set out each stage and check levels before the next one starts, so errors are found early and the work passes inspection the first time.
3. 3One supervisor for the whole job. The same supervisor runs the site from the first cut to handover and reports to the client each week on progress, weather and any changes.
4. 4Programs planned around the weather. We plan the wet season into the program, stage the works to keep water off finished areas, and set up erosion controls before the first storm.

Own fleet, own survey, one supervisor: the site is ready when you need it.

Three core services take a site from raw ground to finished roads and lots. Each is delivered by our own crews and fleet, with survey checks built into every stage.

Bulk earthworks

Cut, fill and compaction for subdivisions, estates and building pads, to the geotechnical engineer's specification.

Scope

• Site strip and topsoil
• Cut and fill
• Compaction and testing
• Building pads

Where

Subdivisions and industrial estates.

Specialist capability

Machine guidance on dozers and graders.

Why clients use us

Machine guidance and our own survey checks keep levels right first time, so less material is moved twice.

Roads and pavements

Subdivision roads, council road upgrades and pavements, from subgrade preparation to sealed surface.

Scope

• Subgrade preparation
• Pavement layers
• Kerb and channel
• Sealing coordination

Where

Subdivision and council roads.

Specialist capability

Pavement testing with our own lab partner.

Why clients use us

Pavements are tested layer by layer before the next goes down, so roads pass council inspection at handover.

Stormwater and drainage

Stormwater pipes, culverts, detention basins and erosion controls for subdivisions and council upgrades.

Scope

• Stormwater pipes and pits
• Culverts
• Detention basins
• Erosion and sediment control

Where

Subdivisions and road corridors.

Specialist capability

Deep trenching with shoring systems.

Why clients use us

Drainage goes in ahead of the wet season, so finished areas stay dry and the program holds.

Owning our fleet lets us mobilise when a project is ready, not when hire machines are free. Every machine is serviced in our workshop and fitted for the work we do.

Maintenance: Every machine has a daily pre-start check and a service schedule kept in our workshop, with records available to clients on request.

Our work spans the residential, industrial and public projects that shape South East Queensland's growth, from new suburbs to council road upgrades.

Every environment gets the same survey checks and supervision.

• Safety. Our safety management system is certified to ISO 45001. Every site has a site-specific safety plan, daily prestarts, traffic management between plant and people, and permits for excavation near services.
• Quality. Our quality management system is certified to ISO 9001. Each stage has an inspection and test plan, survey conformance checks and compaction testing, and the client receives a complete handover pack.
• Environment. Our environmental management system is certified to ISO 14001. Erosion and sediment controls go in before the first cut and are inspected after every storm.

How to engage us: Direct engagement by developers · Council tender and quotation · Subcontract to head contractors

• 

  Hillcrest Rise subdivision, stages 1 to 3.

  Client: residential developer.

  • 240 lots.
  • Bulk earthworks, roads and drainage.

  "Tarnwick kept every stage on program through a wet summer, and the lots passed inspection first time."

• 

  Northgate industrial estate pads.

  Client: industrial developer.

  • Six building pads.
  • Heavy duty pavements.

• 

  Creek Road upgrade.

  Client: local council.

  • 1.8 km road upgrade.
  • Culvert replacement.

• 

  Riverbend detention basin.

  Client: head contractor.

  • Basin and outlet works.
  • Erosion controls.

Send us your plans and we will price the earthworks and program.