Paul Mattox announced he will leave the West Virginia Department of Transportation when the current governor's term ends Jan. 16, after serving as DOT secretary since June 2006 and as highways commissioner since January 2005.
Gov.-elect Jim Justice has been naming some officials to head state agencies once he takes office, and is expected to soon name his choice to run the DOT.
The MetroNews Network reported that Mattox said he plans to return to the private sector at the end of the current governor's administration.
It said Mattox is the longest-serving transportation secretary in state history. He is also one of the longest-tenured CEOs among all current DOTs across the nation.
Mattox first worked for the state DOT from 1979 to 1987, when he joined a private engineering firm, according to his DOT biography.
In 2005 then-Gov. Joe Manchin named him first as highways commissioner and the next year appointed him DOT secretary. Mattox retained the dual titles under Gov. Earl Ray Tomblin, who first took office when Manchin won a Senate seat in 2010 and later won a full term starting in January 2013.