The intake vortex is created when water enters the Denison Dam spillway. Engineers said this is a normal occurrence when floodwaters are released from the reservoir using flood control gauges.

the U.S. Army Corps of Engineers posted a clip on their YouTube page of a swirling vortex in Lake Texoma. The 8-foot whirlpool is caused by a gate in the spillway beneath the water, which the ...

Boaters on Lake Texoma are being advised to steer clear of a large intake vortex created when officials decided to lower the water level on the reservoir along the Texas-Oklahoma border. The U.S ...

Footage of the giant hole, which sprang up suddenly ... it will develop a vortex or whirlpool,' he said. The water flow creates a cyclone shape, rather like a tornado, with a wider opening ...

A giant water vortex which opened up in a lake has been branded a "portal to Hell". The 75ft-wide chasm appeared in the Lake Berryessa reservoir in eastern Napa Valley, which lies at the top of the ...