MAKE A MEME View Large Image Waste Weir Closed on C and O Canal.jpg en Waste weir near Lock 20 on Chesapeake and Ohio Canal Paddle valves are closed boards are put in so that the level canal pound be full Boards determine height of water in the level Canal Pound since ...
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Keywords: Waste Weir Closed on C and O Canal.jpg en Waste weir near Lock 20 on Chesapeake and Ohio Canal Paddle valves are closed boards are put in so that the level canal pound be full Boards determine height of water in the level Canal Pound since excess water spills over the top of the uppermost board See image Waste_Weir_Open_on_C_and_O_Canal jpg for this same waste weir open own Bonnachoven image Waste_Weir_Open_on_C_and_O_Canal jpg Chesapeake Ohio Canal National Historical Park Cc-zero
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