U.S. Federal Route 136 is a east-west highway across Central Mc Donough County. It runs from the Hancock/Mc Donough County Line to the Fulton/Mc Donough County Line. As of July, 2004, this highway was being widened on the westside of Macomb. U.S. Rt. 136 passes through the following towns in Mc Donough County. Tennessee
Adair U.S. Rt. 136 is multi-plexed in Mc Donough County. U.S. Rt. 67, at Macomb.