Drone Captures Spectacular Aerial Footage Of Lake Berryessa Glory Hole

StoryfulPublished: February 20, 2017734,257 views
Published: February 20, 2017

Lake Berryessa is the largest lake in Napa County, California. This reservoir in the Vaca Mountains is formed by the Monticello Dam, which provides water and hydroelectricity to the North Bay region of the San Francisco Bay Area.

For the most part, the lake is occupied by swimmers, fishermen, water skiers, kayakers and other enjoyers of aquatic sports. Californians love the place! But after a long period of drought, a concrete tower near the dam that no one really knows what it is for becomes a drain for the excess water that fills the lake. Locals call it the ‘glory hole’.

The design for Lake Berryessa’s spillway, also called morning glory or a bell-mouth, is essentially a giant concrete funnel that on regular days sticks out of the surface of the water, 75 feet in diameter at the top and 28 feet at the base. When the lake’s surface level exceeds over 440 feet above sea level, which is close to overflowing the dam, the excess water drains down the glory hole, creating a mesmerizing whirlpool. It attracts visitors like the great attraction it is. Still, in all its six decades of existence, the lake only topped 26 times.

The operations manager for Solano Irrigation District confirms our finds that it is quite dramatic to watch when the lake overflows. When the glory hole was last in use in February 2017, some 15 drones were reported hovering over the glory hole, capturing the mesmerizing moment.

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