Interesting diagram. I've been incorrectly calling freeboard the distance from the top of the dam to the full pool level. According to the diagram it is the area from the top of the dam to the design flow level of the emergency spillway (not even just the level of the emergency spillway).
So the freeboard would the the amount of dam still exposed when the pond was running full bore over the emergency spillway.
Last edited by snrub; 10/12/14 01:32 PM.
