Although small in size, Lake Alvin has become a very popular area. This 59 acre park is best known for its beach facilities and excellent fishing. Its proximity to Sioux Falls and Newton Hills State Park make it a great place to enjoy a day on the beach.
Lake Alvin is an artificial impoundment formed by the construction of a dam across the lower end of Nine Mile Creek. It was named for Alvin Dempewolf, the only World War soldier form Harrisburg who died overseas. The construction of the dam was completed in August 1954 and the lake completely filled in 1957. The concrete spillway for the dam was completely replaced in 1994.