Ключевые слова: blocking, city, civil engineering, cleanup, construction, construction site, development, dirty water, discharge, disrepair, drainage pipe, engineering, environment, equipment, heavy, inconvenience, industrial, infrastructure, large, machinery, maintenance, muddy road, municipal, obstacle, obstruction, plumbing, pollution, project, repair, roadwork, street, traffic, transportation, urban, urban planning, urbanization, utility, vehicle, water flow,