When this service is useful
The right scope depends on your development, site access, ground conditions and the information needed by your project team. This service is commonly used for:
- New access roads and subdivision roads
- Car parks, driveways and industrial hardstands
- Failed, cracked or deforming pavement areas
- Projects requiring subgrade CBR or pavement-profile information
Ground information for pavement and civil design
A pavement investigation should reflect the intended traffic, performance requirements, drainage and variability of the existing or proposed subgrade.
Laboratory and field testing are selected where they answer the designer's questions. Accredited testing is identified separately when required.
Important project and ground considerations
- Traffic and pavement use
- Existing layers and subgrade variability
- CBR, moisture and material testing requirements
- Drainage, earthworks and construction verification
What the assessment can include
- Review of traffic, pavement and civil-design requirements
- Test pits, boreholes, DCP or sampling selected for the project
- Description of existing pavement layers and subgrade
- Coordination of appropriate laboratory testing where required
- Groundwater, drainage and earthworks observations
What you receive
- Pavement and subgrade investigation records
- Interpreted subgrade variability and design considerations
- Laboratory results supplied by the engaged testing provider where included
- Earthworks, drainage and verification recommendations within scope
What to provide for your quotation
The clearest quote starts with enough information to understand your actual project, site constraints and required deliverables.
- Pavement layout and levels
- Traffic or design criteria
- Existing pavement and drainage information
- Required tests and authority specification
Pavement & Subgrade Investigations across Sydney and NSW
Pavement and subgrade work can be scoped across Greater Sydney, Western Sydney, Macarthur and the Illawarra. Ground conditions and approval requirements must always be considered site by site.