It looks like the end for one of the old Boblo boats.
Detroit fire crews are on the scene of the fire which has engulfed the Saint Claire. The Saint Claire is docked at Kean Marina, in the Detroit River off the foot of St. Jean street. It looks like the boat will be a total loss.
The Saint Clair was built in 1910, and used for many years to take visitors to and from Boblo Island amusement park.