Roane County, TN- A boat trailer caught fire in the axle area on I-40 westbound near the 359-mile marker yesterday morning around 11:30. Roane County Emergency Management Agency trucks responded to the scene. No one was injured, but the vehicle had to be towed to the next exit so traffic was noted to be slowed in the right lane between Buttermilk and Gallaher Road until the vehicle was off the roadway.