Ключевые слова: background, city, construction, cover, dirty, drain, drainage, flood, grate, grid, grill, grille, grunge, gutter, hole, industrial, industry, iron, maintenance, manhole, metal, pattern, pavement, paving, paving stones, rain, road, rough, rust, rusty, sewage, sewer, sidewalk, sink, steel, stone, storm, street, surface, system, texture, tile, urban, utility, water,