Stock photography, photos: Dubuque Iowa damn #11 Stock photos of Lock and damn number 11 in Dubuque, Iowa Photograph: © John Oeth Click for a larger image and more information Keywords associated with this stock photo: Dubuque, Iowa, IA, USA, United, States, of, America, army, corps, of, engineers, Mississippi, water, river, management, flood, control, gate, midwest, mid, west, mid-west, aerial, view, architecture, architectural, industrial, john oeth