Work on the new interchange at Broad Street, Memorial Boulevard and Old Fort Parkway in Murfreesboro made significant progress before winter weather battered the Midstate. According to Tennessee Department of Transportation Region 3 spokesperson Kathryn Schulte, work will continue but the focus has shifted from asphalt to retaining walls.“During the final quarter of 2015 there was a lot of activity throughout the job site,” she said. “Now, as temperatures become too low for asphalt work, there will be a heavy emphasis on retaining wall construction.”Motorists traveling through the construction zone will notice changes with widening along the east side of Broad Street, as well as the progression of the retaining walls and ramps on the south side of the Broad and Memorial intersection.Widening is not entirely complete, but work has allowed new access points to three businesses.“The widening work along the east side of Broad Street is not entirely complete, but it did allow for the opening of the new driveways to Wilson’s Bank, Hooters, and Logan’s Roadhouse,” said Schulte.The project, awarded in July 2014 to Bell and Associates, has a December 2017 completion date.