Called flash board risers they are used mostly in shallow water situations (flooding and impounding fields for duck hunting or rice production)to regulate water depth. I have never seen one used on a pond with a dam and more than 3-4 ft of water. I would not consider using one on a normal pond design especially with ice (better options). Strength is not there strong point and with large vols of water pressure builds up against the boards.

Last edited by ewest; 12/28/07 06:45 PM.