What is the speed limit on primary and secondary state and federal highways in Tennessee?

The speed limit on primary and secondary state and federal highways in Tennessee is established at 55 miles per hour. This limit is designed to promote safety on smaller highways that typically have more intersections, driveways, and potential hazards compared to interstate highways.

By maintaining a speed limit of 55 m.p.h., the state encourages drivers to have a manageable speed that allows for better reaction times in the event of unexpected obstacles or changes in traffic conditions. While there are higher limits on interstate highways and lower limits in urban or residential areas, the 55 m.p.h. limit strikes a balance between efficiency and safety on the state’s primary and secondary roadways.