4th Section of driveway being prepared

Today was the kerb section of the driveway that was prepared, including the industrial-grade galvanized pipes connecting the storm-water pit/chamber to the kerb guttering. Our hydraulic engineer specified these based on the brief to him that we will have heavy vehicles going up and down that driveway during the house build. Normally there would be PVC storm-water piping installed.
We've also been lucky with the weather, the driest spell they have had for a supposedly wet season.