truss green painted metal astoria–megler bridge across the mouth of columbia river

american arch arched architecture artery astoria balance barrier bridge city columbia commercial connect connection delta drive driving elevating engineering estuary fishing green hoist hoisting logistics long megler mouth movement moving northwest ocean old oregon outdoors pacific painted perspective powerful railing rails reliable retro river road roadside roadway safety section straight structure support symbol tall traffic transport transportation transporting travel trolley truss urban usa walking water waves way