large 18-wheeler trucks pass over the truss bridge with dunderberg mountain in the background

transportation infrastructure superstructure geomorphology conventional mountainous transported conditions structural interstate triangular highlands landscape transport vehicular eastbound westbound triangles undefined vehicles trucking truckers shipping dutchess anthonys accident pavement landmark designed trailers estuary parcels weather traffic repairs delayed incised channel warming support bearing roadway drivers driving tractor carbon orange county hudson hiking closed delays region summer weight design tides tidal fjord cargo lanes route cross goods units haze hazy nose