world's largest Drain Hole.

WORLD'S LARGEST
DRAIN HOLE

THE LONGEST LIST OF THE LONGEST STUFF AT THE LONGEST DOMAIN NAME AT LONG LAST

What is the world's largest Drain Hole?



Have you ever noticed the drain hole in your bathtub or sink? Chances are, most of us have never really paid much attention to these drain holes. But there’s a drain hole in northern California that demands attention.

The Monticello’s Dam is the largest morning glory spillway in the world. It is a funnel-shaped outlet that allows water to bypass the dam when the dam reaches its capacity. It takes water at a speed of 48,400 cubic feet per second. The exit point is located at the southern side of the canyon and the distance from here to the funnel point is approximately 700 feet. The spillway is basically a giant cement funnel. The holes largest diameter is 72 feet and it narrows to approximately 28 feet. Obviously, swimming near the hole is both dangerous and prohibited. For safety reasons, there are buoys strung across the lake to discourage boaters and swimmers from getting close to the glory hole and the dam. The glory hole is also well fenced off from the land.

When the weather is drier and the hole is empty, skateboarders and bikers sometimes use the spillway’s horizontal exit as a half-pipe as the water level is well below the rim of the glory hole, leaving it completely dry.


the largest Drain Hole in the world.

 largest Drain Hole.

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