Lake Ida, located in Alexandria, Minnesota, is a state-regulated body of water with a dam completed in 1937 by the Works Progress Administration-Civilian Conservation Corps. The dam, classified as a buttress type, stands at 8 feet tall and spans 45 feet in length. It serves a primary purpose of "Other" with a storage capacity of 864 acre-feet and a surface area of 4426 acres.

The dam at Lake Ida has a low hazard potential and was last inspected in June 2016, with a satisfactory condition assessment. The lake's drainage area is 103 square miles, with a maximum discharge of 199 cubic feet per second. Despite its age, the dam remains in good condition and meets state regulatory standards for inspection, permitting, and enforcement. The surrounding area offers recreational opportunities and wildlife habitat, making Lake Ida a valuable resource for water and climate enthusiasts to explore and enjoy.