Subdivision roads & rights-of-way
Strip, undercut, form, place aggregate and grade access routes for residential and rural developments.
Civil & subdivision earthworks Canterbury
Build the ground the project relies on.
Subdivision roads, rights-of-way, drainage formation, service corridors and commercial site preparation—coordinated from bulk earthworks through aggregate placement, compaction and final grading.
Plans & setoutScope, levels, access and staging reviewed.
Bulk formationCut, fill, undercut and material movement.
Drainage & servicesCorridors, swales and culvert preparation.
Aggregate layersSupply, place and compact specified material.
Grade & handoverTrim levels and prepare for following trades.
More than moving dirt
Every layer has a job to do.
Civil and subdivision earthworks connect many parts of a project. Formation levels affect drainage. Material selection affects compaction. Access and staging affect every contractor that follows.
TBT coordinates the physical earthworks scope around the supplied plans, engineer’s requirements and site programme. With excavators, trucks, compaction equipment and laser grading capability, the team can keep material, machinery and finished levels moving together.
Bulk cut and fill
Site-wide excavation, filling and material balancing for building platforms, lots and shared areas.
Drainage formation
Swales, soakage excavations, culvert preparation and falls formed to the project requirements.
Corridors and trenching
Excavation and reinstatement support for specified utility routes and project infrastructure.
Road formation logic
The finished surface is only the top layer.
Actual depths and materials are determined by the project design and ground conditions. TBT forms and installs the specified build-up, with proof rolling or testing coordinated where required.
04Running surfaceFinal aggregate or prepared surface trimmed to line, level, crown and falls.
03BasecourseSelected aggregate placed in controlled lifts and compacted to the specified requirement.
02Sub-baseStructural layer built to distribute loads and create a stable platform above the formation.
01Prepared formationUnsuitable material addressed, subgrade shaped and drainage paths established before aggregate begins.
Oxford / North CanterburyRoad formation for a seven-lot subdivision.
Established project proof
Subdivision roading, delivered on the ground.
TBT has completed the excavation, formation and grading required for a new subdivision road in Oxford. It is a practical example of the coordinated process this page covers—not just isolated machine hire.
- New road and right-of-way formation
- Excavation and material movement
- Aggregate placement and compaction
- Drainage falls and final grading
Civil earthworks capability
A complete scope reduces the gaps between stages.
Projects run better when formation, drainage, materials and levels are planned as one sequence rather than handed between disconnected crews.
Excavation and undercut
Topsoil stripping, bulk excavation and removal of unsuitable material from specified areas.
Fill placement
Suitable material placed in controlled layers, moisture managed and compacted as required.
Cartage and supply
Trucks coordinated for spoil removal, imported fill, aggregate and on-site material movement.
Drainage features
Swales, soak pits, culvert lines and drainage falls excavated or formed to supplied requirements.
Compaction and testing
Compaction equipment matched to the layer, with independent testing coordinated where specified.
Laser grading
Accurate trimming of roads, platforms and large areas before surfacing or following construction.
Price from useful information
Send the documents that define the groundworks.
Early review helps identify quantities, access constraints, staging and items that need clarification before machinery arrives.
Earthworks plansExisting and proposed levels, contours, cut/fill information and cross-sections.
Civil and drainage plansRoad build-up, services, swales, culverts, soakage and discharge requirements.
Geotechnical informationKnown ground conditions, unsuitable material, fill specification and testing regime.
Programme and accessRequired stages, site entry, working room, neighbouring activity and material destinations.
Common questions
Civil and subdivision FAQs.
Do you complete the full subdivision?
TBT delivers the earthworks, road formation, drainage excavation, service-trench support, aggregate and grading scope. Surveying, engineering design, consenting and specialist utility installation remain with the relevant consultants or contractors.
Can you work from civil plans?
Yes. TBT can price and deliver the earthworks from supplied civil, earthworks and drainage drawings, with clarifications coordinated through the client or project team.
Do you supply aggregate?
Yes. Material supply and cartage can be included, with aggregate type and layer depth matched to the project specification.
Can you arrange compaction testing?
Independent testing can be coordinated where required. The required standard, test frequency and reporting should be established in the project documents.
What size projects do you take on?
TBT undertakes private rights-of-way, small subdivisions, commercial preparation and larger staged rural or residential developments across Canterbury.
Where do you work?
Christchurch, Selwyn, Waimakariri, North Canterbury and wider Canterbury, subject to project scope and mobilisation requirements.
Civil earthworks CanterburyPlanning a subdivision, access road or civil site?
Send Trent the plans, address, programme and any available ground information for an initial scope review.