New Zealand · AI-powered · Free to try
Free Earthworks ITP Generator
Generate a complete Inspection & Test Plan for earthworks in seconds. Covers cut and fill operations, compaction testing, subgrade preparation, material classification, and geotechnical verification — with hold points for density testing and subgrade sign-off.
- Earthworks-specific hold points and witness points
- Aligned with AS/NZS standards and the NZ Building Code
- Sign up free to download your PDF
Trade
Scope
Brand
Project
Finish
What trade is this ITP for?
We'll tailor the inspection items, hold points and standards to your trade.
Applicable Standards (AS/NZS & NZ Building Code)
- AS 1289 — Methods of Testing Soils for Engineering Purposes
- AS 3798 — Guidelines on Earthworks for Commercial and Residential Developments
FAQ
- How often should compaction testing be done in earthworks?
- Testing frequency depends on the project specification, but typical requirements are one density test per 250-500m² per compaction layer for structural fill, and one per 500-1000m² for general fill. The ITP should record the test method (nuclear gauge or sand replacement), the test result as a percentage of MDD, and the moisture content.
- What is the required compaction standard for earthworks?
- Standard requirements vary by application: structural fill under footings typically requires 98% Standard Maximum Dry Density (SMDD), general fill requires 95% SMDD, and road subgrade typically requires 95-100% SMDD depending on the pavement design. The project specification takes precedence over these general values.
- Do earthworks ITPs need to cover erosion and sediment control?
- Yes. Erosion and sediment control (ESC) should be a witness point or inspection item in the earthworks ITP. During bulk earthworks, ESC measures (silt fences, sediment basins, stabilised access) need to be maintained continuously. Local council and EPA requirements often mandate specific ESC controls that should be referenced in the ITP.