Wawatam Lighthouse is an automated, modern lighthouse that guards the harbor of St. Ignace, Michigan, in the Straits of Mackinac. Originally completely nonfunctional, it was erected in 1998 by the Michigan Department of Transportation (MDOT) near Monroe, Michigan as an iconic roadside attraction at a welcome center that greeted northbound drivers on Interstate 75 (I-75). After serving in this capacity for six years, the structure was threatened in 2004 when MDOT decided to rebuild the welcome center and demolish the tower.