BISMARCK, N.D. (AP) _ The director of the North Dakota Department of Transportation is retiring at the end of the month.
Francis Ziegler has worked for the department for 42 years. He was appointed director of the agency in 2006.
Gov. Jack Dalrymple has appointed Deputy Director Grant Levi to serve as interim director when Ziegler steps down. Levi will serve in the role through the 2013 Legislature.
The DOT employs more than 1,000 people and has a two-year budget of about $1.7 billion.