Ключевые слова: aerial view, backhoe, building, bulldozer, concrete manhole, concrete sanitary, concrete well, construction, construction site, development, dig, digger earthworks, digger land, drain systems, drainage, drainage pipe, earth moving, earth work, earthmover, earthworks during, engineering, equipment, excavate, excavation, excavator, excavator dig, ground, industrial, industry, installation, land preparation, pipeline, plumbing, preparation process, sanitary sewer, sewage, sewer construction, sewer pipes, sewerage, trench, underground, utility infrastructure, work,