Dennis H. “Denny” Miller, Vice Chairman of Railroad Development Corp. (RDC) affiliate Iowa Interstate Railroad (IAIS), will retire effective Sept. 30, 2020, after a 47-year railroading career. Miller held various positions within IAIS, among them Vice President Customer Services, VP Operations, Executive VP-CEO, President, and most recently Vice Chairman. He also served on several committees with the American Short Line and Regional Railroad Association (ASLRRA) and was a 15-year board member with the Association of American Railroads (AAR).