Ключевые слова: american, arch, architecture, artery, barrier, bridge, car, central, city, columbia, columbia gorge, columbia river, commercial, connect, connection, cross, drive, driving, elevating, engineering, forest, hoisting, lattice, logistics, metal, mountain, movement, moving, northwest, openwork, oregon, outdoors, painted, paths, pedestrian, perspective, powerful, railing, reliable, road, roadside, roadway, run, safety, silver, steel, straight, structure, style, support, symbol, tension, toll, traffic, transport, transportation, transporting, travel, triangles, truss, urban, usa, walking, walkway, washington, way, web,