Ключевые слова: america, arch, auto, beam, bridge, cable, cloudy, color, connection, cross, deck, frame, girder, gothic, green, highway, infrastructure, johns, metal, old, oregon, overpass, pacific northwest, paint, passage, pdx, pier, portland, span, spire, st, states, steel, sunrise, sunset, support, suspend, suspension, tower, traffic, transportation, truss, united, usa, vertical,