activity on Lake St. Clair

[JLK mate]

dredging

[Eric Miller]

Does anyone know what was going on on Lake St. Clair last night? As I drove down Lakeshore Drive, there was a stationary vessel with a very bright light off of the Grosse Pointe Yacht Club. It might have been a barge, as I noticed a blinking red light on it, too. It was still there this morning when I drove to work. Thanks in advance.