The Ann Arbor Railroad (1895–1976) had declared bankruptcy and was included in the assets of Conrail, formed on April 1, 1976.
The MIRC operated until October 7, 1988, when the Ann Arbor Acquisition Corporation acquired all assets.
Additionally, the Tuscola and Saginaw Bay Railway acquired operations north of Ann Arbor, Michigan in 1982.
[2] The MIRC continued to operate until October 7, 1988, when all assets were acquired by the Ann Arbor Acquisition Corporation.
The Ann Arbor Railroad purchased ten new EMD GP35s in 1962 that were built and delivered in 1963.