locks and dam 14 on the mississippi river at bellevue ia opening the lock so a barge can proceed down river.

waterway vehicle harbor dock channel port sea river boat marina infrastructure coast water canal watercraft bay transport ship ferry aerial drone navigation watercourse floodgate gateway travel industrial nautical barge container transportation shipping vessel industry pushing cargo tugboat freight commercial activity dam lock gate tug hydro barrage levees building bellevue 39aph39 iowa august 2024 locks mississippi opening proceed