The reconstructed Gull Lake Dam will be made of sheet pile. A lot a folks have been asking what a sheet pile dam looks like. Two GLDA Committee members visited Weidman Millpond which is a small lake in Weidman, MI in Isabella County. To help you get your bearings, the town of Weidman is approximately 16 miles WNW of Mt. Pleasant, MI. There is a sheet pile dam located at the south end of Weidman Millpond that feeds into Coldwater lake. While the new Gull Lake dam will not look exactly like the Weidman Millpond dam, it does give you some idea of what a sheet pile dam looks like.