dam operators agreed to open the spillway just for American Experience. "It was very exciting that they agreed to spill for us for a short period specifically for the film," said Associate ...

JOSH EDELSON/AFP via Getty When water rises above a certain level the dam must release the excess volume through what’s known as a “spillway” in order to prevent structural damage.

The Corps has not yet announced whether the agency will open the spillway, and says they are monitoring the forecast before ...