| U.S. Route 70S | |
|---|---|
| Route information | |
| Maintained by TDOT | |
| Major junctions | |
| West end: | US 70 in Nashville |
| I-440 in Nashville I-40 in Nashville I-24 in Nashville |
|
| East end: | U.S. Route 70 in Sparta |
| Highway system | |
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United States Numbered Highways |
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U.S. Route 70s is an alternate to U.S. Route 70 between the western part of Nashville, TN and Sparta, Tennessee. It runs concurrent with US 70 for several blocks in downtown Nashville. The highway follows Murfreesboro Pike from Nashville to Murfreesboro then heads due east to McMinnville then north to Sparta where it ends at its junction with US 70.
During the 1980s the section of the route between Belle Meade and Smyrna was upgraded from two to four lanes.
In 1991 the portion from Smyrna to Murfreesboro was also upgraded to four lanes.
In the early 1990s the 18-mile (29 km) stretch from Murfreesboro to Woodbury was widened from two to four lanes.
Between 1994 and 2002 the section between McMinnville and Sparta was widened to four lanes and a four lane bypass around McMinnville was built.
As of 2006 the only section of US 70s that lacks four lanes is between Woodbury and McMinnville. There have been plans to upgrade this section from two to four lanes as well. Construction has begun outside McMinnville on widening to five lanes (including one left turn lane) for three miles (5 km) as a way to avoid congestion.