CN5318/CN5024 Lead Grand Trunk Symbol 327 Eastward through the double track switch on the the Mt. Clemens sub on June 26, 1996 at 19:30.

After decades of B-B truck units working this sub and mostly defered maintenance the Double Stack tunnel in Port Huron has brought a lot of changes. Usually CN or lease units pull the trains as GTW does not have an abundance of C-C trucks. Traffic has increased and much work has taken place on the roadbed.