A circular drain at Lake Berryessa in Napa County, known as the Morning Glory Spillway, has been active, drawing spectators ...

A drone panoramic view of Oroville Dam and main spillway at Lake Oroville in Butte County, Calif. Photo taken March 11, 2025.

A final design consideration is an emergency spillway or diversion structure. The total retention volume of these filters should be designed to treat the surface runoff of a particular design storm ...

He told reporters that the peak intensity of the storm is expected to take place ... "We do expect that facility, as designed, to flow over its spillway during this event at some point," Pestrella ...

Editor's note: The Asheville Citizen Times will answer your Helene-related questions in our newly launched Sunday "Asheville Answers" column. We will also answer other burning questions.

The construction makes the spillway even larger than before. "The wings on the side were at least 18 inches, this one is just a little narrower, the walls are 10 feet on the inside," said President of ...

A storm carrying heavy rains felled the Penelec ... because “there was more water than the spillway could handle” after about 3 inches of rain, Blake said. Everyone at the scene agreed the ...

More than a mile long, the Grand Coulee Dam is the largest concrete structure in the U.S. In the fall of 2011, dam operators agreed to open the spillway just for American Experience. "It was very ...

A plan has been devised to unleash the Wairoa River in periods of heavy rain through land near North Clyde, fixing a troublesome kink in the river that failed the suburb in Cyclone Bola and Gabrielle.

Wiki Hauraki says although the spillway will only take a small part ... His whānau lived through the storm in May 1948, Cyclone Bola and Cyclone Gabrielle. “Every time there’s a heavy rain ...