defunct railroad bridge with young white pine trees growing on railbed

design decaying disintegration disintegrating growth vegetative matter vegetation generic evergreen bushes overcast stream water flow crossing cross railline bed ibeams steel iron rivets riveted spruce wooded abandonment abandon forgotten unused crossbeams transportation trains mass transit cargo shipping transport industry standards regulations regulatory romantic nostalgia nostalgic times gone dated old fashioned retro ruins ruined disorder atavistic disuetude ramshackle lost ghostly maudlin wistful sentimentality danger dangerous conditions falling