Motorists on Interstate 40 hoping to breeze around Nashville traffic got six miles closer Wednesday when state and local officials officially opened another segment of State Route 840.
The new portion of the 78-mile southerly bypass connects Highway 100 to State Route 46 near Leiper’s Fork in Williamson County. Just 12 miles are needed to complete the ambitious Tennessee Department of Transportation project that has been in the works since 1986.
View map of the completed under construction segments of SR 840 
“While this section of State Route 840 faced numerous challenges, it signifies many of the changes TDOT has successfully implemented,” added Commissioner Gerald Nicely. “This project led us to form valuable partnerships with this community, and improve communication and cooperation with other agencies. The lessons learned will help ensure the final two State Route 840 projects are completed on time, with no adverse impacts to the environment.”
This SR 840 project is approximately six miles in length and begins just east of the Highway 100 interchange and extends to Bending Chestnut Road. It includes a new interchange at State Route 46 (Pinewood Road). It is part of the final 18 miles of roadway that travel through southwest Williamson County, and will eventually connect to the existing section of SR 840 west of Interstate 65.
The remaining section of State Route 840, which stretches from Bending Chestnut Road to State Route 6 (US 31/Columbia Pike), is expected to be open to traffic by the end of 2012.
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