8.1 Excavating and earth-placing machinery
8.2 Controlling excavation
8.3 Haulage of excavated material
8.4 Placing and compacting fill
8.5 Watching fill quality
8.6 Site roads
8.7 Trenching for pipelines
8.8 Thrust blocks and testing pipelines
8.9 Handling and jointing large pipes and fittings