U.S. Route 70S
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| U.S. Route 70S |
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| West end: |  US 70 in Nashville, TN |
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| Major junctions: |
 I-440 in Nashville, TN
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| East end: | U.S. Route 70 in Sparta, TN |
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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 the Murfreesboro Pike from Nashville to Murfreesboro then heads due east to McMinnville then north to Sparta were it ends at its junction with US 70.
[edit] Route Improvements
During the 1980's the section of the route between Belle Meade and Smyrna was upgraded from two to four lanes.
In 1991 the portion from Smyrna to Murfessboro was also upgraded to four lanes.
In the early 1990's the 18 mile stretch from Murfessboro to Woodbury was widned 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 as a way to avoid congestion.
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