Ключевые слова: building, connection, construction, damage, dig, ditch, drain, drainage, engineering, equipment, excavation, ground, hole, industrial, industry, infrastructure, installation, iron, line, main, maintenance, metal, old, pipe, pipeline, pipes, piping, pit, plumbing, pressure, problem, reconstruction, repair, replacement, service, sewage, sewer, sewerage, site, steel, supply, system, technology, trench, tube, underground, water, water main, work,