Graphic showing Kentucky Lock Addition Project located in Grand Rivers, KY. Graphic shows what the project will look like when finished and identifies the L31-17 monolith and lift that represent the first "top-out" of a monolith at the project. A monolith is a single structure of concrete that is in the shape of a column. There are a total of 50 monoliths that are to be constructed made from five-foot layers of concrete. Each five-foot layer is called a lift. Early Saturday morning, the final concrete lift was completed for a monolith located on the downstream side of the lock being constructed. (Courtesy Graphic)