Spillway @ Lexington Dam, LosGatos,Ca

Most of the water that is released is regulated by control valves.
What you see here is unregulated safety overflow.
This is actual overflow from top of dam spillway chute.
The marker indicates 11x100 cubic feet per minute.
As you can see It's running at about 6 times per.
The dam is Currently @ 102% capacity.
This is a rare sight