sentences:  The section between US 25W north of Knoxville and SR 61 in Clinton broke ground in segments, beginning in August 1968, and was opened to traffic on August 1, 1972.The approximately segment between SR 61 and US 441 in Anderson County was completed in September 1973.The section of the highway between SR 308 near Charleston and SR 30 in Athens opened on December 24, 1973, and was completed the following spring.