The authority for Deer Creek Lake to be built was granted by Section 4 of Flood Control Act of 1938. The primary project purposes are flood risk reduction, fish and wildlife enhancement, recreation, and low flow augmentation. Deer Creek Lake’s recreation areas are comprised of three main areas; US Army Corps of Engineers day use area, ODNR’s wildlife area, and ODNR’s parks and recreation area and facilities. Deer Creek State Park comprises most of the recreational facilities on the project including the lodge, cabins, campground, golf course, and beach amongst other facilities.