Scope and Contents Joel Marquardt of Gastinger Walker Hardin Architects was one of the architects who designed the award-winning, and very interesting, Lake Lenexa Dam and Spillway. Joel shared the artistic interpretation of the various elements of the spillway and the history of the design. The spillway has won design awards from the American Concrete Institute (Technical Innovations Award, 2006), the American City and County Crown Community Award for Black Hoof Park in 2006, the American Public Works...