Our Approach

The Sixth Dimension

In civil construction, drawings, models, programs and budgets are just dimensions on paper. The sixth dimension - people, systems and delivery discipline - is what makes them real. 6D Civil was built around that principle.

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Capability

What We Deliver

Pipelaying

Sewer, stormwater, water mains, live connections, culverts, pressure mains. We own the trench. We don't outsource the risk.

Land Subdivisions

Full civil works for 5–100+ lot developments. Earthworks, pipeworks, retaining walls, roads, landscaping. No excuses. No disruption. Certainty through planning.

Roads / Civils

Access roads, car parks, culverts, retaining walls, unbound pavements. Whether operating as principal or specialist subcontractor, we bring a fully integrated team.

Plant Hire

30+ items of late-model, GPS-equipped plant. Wet hire, dry hire, or as part of a full-package crew. We don't just send machines. We send momentum.

2017
Established
30+
Items of Plant
50+
Major Projects in SEQ
$10m+
Contract Capacity

Portfolio

Recent Work

View All Projects
Moreton Bay

Elan Estate, Warner

250+ lots - Externals & Stages 1-6, Private developer

Redlands

Double Jump Road / Woodbury Estate

Trunk stormwater & structures, Private developer

Gold Coast

Coomera Connector / Hope Island Station

Dept of Transport and Main Roads

More. Than. Capable.

Ready to discuss your next project?

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The Company

About 6D Civil

Built around the sixth dimension - people, systems and delivery discipline.

Our Story

The 6D Difference

Emmett and James have worked together for well over a decade, delivering a broad mix of major infrastructure and land development projects across South East Queensland, NT, Central Queensland, and Northern New South Wales.

This long-running partnership forms the backbone of 6D Civil - combining hands-on capability with structured delivery systems and a shared understanding of what it takes to get the job done properly.

Since starting 6D Civil in 2017, they've grown a company that values planning, clear communication, and accountability. Every job is approached with respect for the delivery model, site conditions, and client priorities - because no two projects are the same, and good contracting means adapting without compromising on quality.

The Dimensions

Why the Sixth?

In construction, every dimension adds clarity. But only one makes things happen.

The Drawing

Lines on paper. Plans, sections, details. Every project starts here - but a drawing never built anything.

The Model

Depth. Clash detection. Spatial coordination. The model shows you what it looks like - not how it gets done.

The Program

Time. Sequencing. Milestones. A program tells you when things should happen - if everything goes to plan.

The Budget

Cost. Quantities. Rates. The budget says what it should cost - not what it will cost when plans change on site.

The Crew

People. Systems. Delivery discipline. The sixth dimension is what turns drawings, models, programs and budgets into roads, pipes, and subdivisions. It's the dimension that actually builds.

ISO-Aligned Management Systems
Est. 2017

Leadership

Our Team

Emmett O'Manacháin
Director / General Manager

Senior-level engineering oversight across all works, pre-contracts, business administration and business development. 20+ years' experience across TMR and civil infrastructure projects with deep working knowledge of SEQ authority requirements and subdivision delivery.

James Appleyard
Director / Operations Manager

20+ years' hands-on operations leadership across subdivision and pipeline delivery. Manages crews, plant logistics and site coordination to ensure every project runs to program.

More. Than. Capable.

Talk to us about your next project.

Get in Touch

Capability

Our Services

Specialist civil construction capability across South East Queensland.

Service Details

Sewer, stormwater, water mains, live connections, culverts, pressure mains. We own the trench. We don't outsource the risk.

Pits, Pipes, Cut-ins, House Connections, QA, CCTV, testing, handover - we've got you covered.

Risk lies underground. That's where we're most comfortable.

  • Stormwater, sewer and water mains installation
  • Deep trenching and shoring
  • Live connections and network shutdowns
  • Pressure main installation and testing
  • Culvert construction
  • House service connections
  • CCTV inspection and as-constructed documentation
  • Integration with Tier 1 and 2 major contractors
Typical clients: Tier 1 & 2 contractors Contract value: Up to $5m
Land Subdivisions - Full Civil Works

Full civil works for 5–100+ lot developments. We know plan sealing and settlements don't move. We build each stage with the builder in mind - sequenced, clean, and always ready for the next trade.

No excuses. No disruption. Certainty through planning.

  • Bulk earthworks, cut-to-fill and site preparation
  • Water reticulation and trunk main connections
  • Sewer reticulation, pump stations and rising mains
  • Stormwater drainage networks and detention systems
  • Internal road construction including subbase, base and wearing course
  • Kerb, channel, footpaths and driveway crossovers
  • Retaining walls and erosion and sediment control
  • Multi-service coordination (electrical, telecommunications, gas)
  • As-constructed surveys and authority handover documentation
Typical clients: Property developers Contract value: Up to $10m
Roads / Civils - Full-Scope Delivery

We deliver complete roadworks and civil works packages with our own people, plant, and project systems. Whether operating as principal or specialist subcontractor, we bring a fully integrated team to site.

Embedded in a larger team or running the package independently, we provide structure, and surety of delivery where it counts.

  • Full road construction - subbase, base course and asphalt wearing surface
  • Access roads and car parks
  • Intersection upgrades and auxiliary lanes
  • Kerb and channel (barrier, mountable, semi-mountable)
  • Concrete footpaths, shared paths and driveway crossovers
  • Box and pipe culverts
  • Retaining wall construction
  • Pavement rehabilitation and overlay
  • Line marking, signage and traffic management
Typical clients: Local councils, TMR, contractors Contract value: Varies
Plant Hire - Wet & Dry Hire

Late-model, fully kitted, modern gear. Operators who actually know how to use it. Available dry, wet, or as part of a full-package crew.

We don't just send machines. We send momentum.

Excavators
14t to 30t Hitachi, full GPS capability (Trimble Earthworks)
Trucks
4t site tippers and 10t road-registered tippers
Water Carts
2,000L to 12,000L capacity
Loaders
Integrated tool carriers (IT Loaders) with attachments
Other Plant
CC10 rollers, DPU compactors, manhole formwork, lasers, quickcuts

30+ items of plant. Well-maintained, fully compliant (insured, Plant Assessor, service history), and ready to work.

If we don't have something in our fleet, we work with trusted partners who do.

More. Than. Capable.

Need a full civil package for your development?

Request a Quote

Portfolio

Our Projects

Delivering civil infrastructure across South East Queensland and beyond.

Project Portfolio

Gold Coast
Roads / Civils Pipelaying

Major civil infrastructure package supporting the Coomera Connector interchange and Hope Island station precinct. Road and pipeline works for TMR in a live rail environment.

Redlands
Subdivisions Roads / Civils

Trunk stormwater infrastructure and structures delivered adjacent to live traffic and complex high-voltage electrical infrastructure. Precision staging in a constrained corridor.

Moreton Bay
Subdivisions

250+ lot residential subdivision delivered across external trunk infrastructure and six internal stages. Full civil scope from bulk earthworks through to practical completion.

Rockhampton
Pipelaying

Long-distance trunk water main installation through varied rural terrain between Gracemere and Mount Morgan. Specialist pipelaying for Rockhampton Regional Council.

Rockhampton
Pipelaying

Sewer pump station and associated rising main construction for Rockhampton Regional Council. Specialist pipework and structural scope.

Toowoomba
Roads / Civils

Two-stage road widening and safety upgrade on a critical Lockyer Valley corridor for TMR. Earthworks, drainage, pavement and linemarking.

Brisbane
Pipelaying

Water infrastructure renewal and upgrade works in the Wacol precinct, adjacent to the Wacol correctional facility. Managed under strict access and security protocols.

Redlands
Roads / Civils

Road safety improvements and intersection upgrade works on Beenleigh Redland Bay Road for TMR. Civil works within a high-traffic corridor.

Noosa
Roads / Civils

Streetscape upgrade and carriageway reconstruction along Noosa Parade. Civil works in a high-profile coastal tourism precinct for Noosa Shire Council.

Brisbane
Subdivisions Roads / Civils

Full civil infrastructure delivery for the Yeronga PDA government-led urban renewal precinct. Roads, drainage and subdivisions within an active redevelopment zone.

Sunshine Coast
Roads / Civils

Dam remediation and specialist civil and stabilisation works at Poona Dam for SEQwater. Complex scope requiring precision delivery in a sensitive water supply environment.

Moreton Bay
Pipelaying

Specialist pipelaying and associated civil works along the Grogan Road corridor in Morayfield. Sewer and water main installation.

Moreton Bay
Pipelaying Roads / Civils

Design and construct 23-lot residential subdivision in Mango Hill with full civil infrastructure including pipelaying, road construction, earthworks and drainage.

Moreton Bay
Subdivisions

Design and construct residential subdivision in Morayfield - 1 into 4 lots with full civil services, road access and stormwater management.

Moreton Bay
Subdivisions

Design and construct 15-lot residential subdivision in Burpengary. Full civil infrastructure including earthworks, roads, drainage, water and sewer.

More. Than. Capable.

Have a project in mind?

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Coverage

Where We Work

Civil construction across South East Queensland's growth corridors.

Service Region Details

Compliance & Partnerships

Who We Work With

Our teams hold approved contractor status across SEQ's major water authorities and local government councils, and deliver alongside some of Australia's leading civil contractors.

More. Than. Capable.

Working on a project in SEQ?

Talk to Us

Let's Talk

Get in Touch

Tell us about your project. We'll get back to you within one business day.

Contact Form

Contact Details

Reach Out Directly

Emmett O'Manacháin - Director / General Manager
0437 696 753
James Appleyard - Director / Operations Manager
0402 506 757
Postal Address
PO Box 613
Cannon Hill QLD 4172
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