Welcome Kenny Lee you are going to love this place.
I can only offer the same as Tom G, Rainman, Brettski.
First does the dam leak? Can you see any water running out the back of the dam along the pipe?
Has the pond ever been completely full?
You really need to measure the elevation like Brettski said to make sure exactly what you have. All dams settle some. But the dam has to be higher than the spillway,PERIOD. It may look a lot worse than it really is, At least lets hope so.
Otto
