Construction work has started on a $1.2 million state project to improve the interchange at Centrifuge Way and South Illinois Avenue, or State Route 62.
The work started Nov. 14 and could be complete by June 15, said Mark Nagi, Tennessee Department of Transportation spokesman.
The work is being done by J&M Grading Division LLC of Friendsville under a $1.165 million contract, Nagi said.
The work includes building three detention ponds that will be used as sediment basins during construction, reconfiguring the interchange, and extending Centrifuge Way, which was formerly known as Boeing Road.