Mother Nature is being blamed for tall, out-of-control grass and weeds that have some drivers complaining about obstructed visibility.
TDOT says the contractor it works with to mow the medians along U.S. Highway 11E in Greene County is scheduled to mow three times.
The contractor has already mowed once this season, but all the rain in July has made the grass grow higher and faster.
Greene County officials have been getting several phone calls about the issue.
The second mowing is scheduled to start Monday.
"We'll have one more as summer wraps up; I don't know if that will be enough. I hope TDOT remembers safety is the most important thing," said Rep. David Hawk.
TDOT says it does not set dates for secondary roads to be mowed. TDOT inspectors and field supervisors arrange the mowings.
Cuttings are usually in the spring when the grass gets tall, in the middle of the summer and in the fall just before the frost.