Ключевые слова: activity, building, civil engineering, concrete, construction equipment, construction site, contractor, damage, digger, digging, drainage, drainage pipe, drainage system, earth, earth moving, earthworks, engineering, environmental, equipment, excavate, excavation, excavator, gas, heavy equipment, industry, machinery, mining, natural gas, natural gas construction, natural gas pipeline, pipe, pipe laying, pipeline, pipes, renovation, repair work, road work, sanitary sewer, scoop, sewage, sewer, sewer construction, sewer pipes, sewerage, sunset, underground, vehicle, wastewater, water main,