The U.S. Army Corps of Engineer’s Fort Worth District said it plans to spend about US$1 million to repair an earthen area of about 95 square feet that slid down the non-water side of Lake Grapevine Dam, an earthen-rolled dam in Grapevine, Texas.
The Corps said the slide took place during torrential November 2015 rains.
Corps officials said there is no immediate risk of dam failure, but they have changed the dam’s classification from low urgency to high urgency — the second-most-serious category — based on the effect a catastrophic dam failure would have on the population downstream.
The Corps said it will be at least two years before a hydrology and hydraulics study is completed for Lake Grapevine Dam that could recommend more improvements.
The dam began impoundment in 1952, and its 8,000-acre reservoir feeds into the Elm Fork of the Trinity River near Carrollton.