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 ...

causing the emergency spillway to collapse. Fire chief Richard Childres says this is not the first time this has happened ...

The second spillway will have gates 31.5 feet lower than the dam’s existing spillway gates ... providing additional storage capacity to capture increased runoff into reservoirs. As storm systems pass ...

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 ...

The last storm of the week is expected to bring with ... Department of Water Resources’ plan to bring the Oroville Dam spillway up to standards, a long-term project was put into place to replace ...

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.