Ключевые слова: arch, architecture, attaching, basis, bridge, building, city, column, concrete, construction, elevated, engineering, equipment, fragment, freeway, highway, industry, infrastructure, installing, iron, joining, mass, metal, modern, modernization, outdoor, over, over the river, overpass, pier, pillar, preparation, rail, reconstruction, renovation, road, scaffolding, site, sky, steel, structure, technology, transit, transportation, trestle, under, unfinished, viaduct, way, work at height,