Browse Items (1 total) Tags: Engine Room Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Photographs of the Interior of the Waterworks Photographs of the interior of the Waterworks. Tags: Decatur IL, Engine Room, interior, lake, Lake Decatur, Photo File: Lake Decatur, Water, Waterworks Featured Item Annual Board of Directors' Meeting Mary 13, 1966. Annual Board of Directors Meeting, May 13, 1966.