State of Ohio Dept of Transportation, District 3 Ashland County District 3 serves the multi-modal transportation needs of north central Ohio, including Ashland, Crawford, Erie, Huron, Lorain, Medina, Richland, and Wayne counties. There are more than 4,150 lane miles of Interstate, U.S., and State Routes maintained by District 3. Our bridge inspectors monitor the conditions of 1,419 bridges annually.