ATLANTA — Wayne Shackelford, who spent decades as a Gwinnett County administrator before leading the state Department of Transportation during the 1990s, has died.

His oldest son, Larry, said Shackelford passed away on Tuesday at Emory Eastside Hospital after a long battle with idiopathic pulmonary fibrosis. He was 75.

Shackelford was born on Nov. 3, 1933, in Carroll County. He earned a bachelor's degree in agriculture from Berry College and attended graduate school at the University of Georgia.

In 1991, Shackelford became a commissioner on the state transportation board. As head of the board, he completed studies on commuter rail and helped create a unified transportation system in counties for nonmedical transportation.

Shackelford also served as chairman of the Intelligent Transportation Society of America, chairman of the Executive Committee of the Transportation Research Board and president of the American Association of State Highway and Transportation Officials.

A highway interchange in Gwinnett County is named in his honor.

Funeral arrangements have not yet been finalized, but are being handled by Tommy Wages Funeral Home in Lawrenceville.

Shackelford, an Army veteran, was a resident of Snellville. He is survived by his wife, Anna, and his children, Carolyn Gazda, of Athens; Larry Shackelford of Marietta; and Steven Shackelford of Clay Center, Neb.