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Interstate 840 (Tennessee)
&sq=crain_ford&lang=en&file=File:I-840.svg) Interstate 840 | ||||
|---|---|---|---|---|
| Tennessee National Guard Parkway | ||||
 I-840 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-40 | ||||
| Maintained by TDOT | ||||
| Length | 77.28 mi[1] (124.37 km) | |||
| Existed | August 12, 2016[2]–present | |||
| History | Completed November 2, 2012 (as SR 840) | |||
| NHS | Entire route | |||
| Major junctions | ||||
| West end |  I-40 near Dickson | |||
| ||||
| East end | I-40 near Lebanon | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Dickson, Hickman, Williamson, Rutherford, Wilson | |||
| Highway system | ||||
| ||||
Interstate 840 (I-840), formerly State Route 840 (SR 840), is a freeway that serves as an outer bypass route around Nashville, Tennessee. Built by the Tennessee Department of Transportation (TDOT), it is also designated as Tennessee National Guard Parkway.[3] At 77.28 miles (124.37 km) long, it is the tenth-longest auxiliary Interstate Highway in the nation.[4] The route serves the cities of Lebanon, Murfreesboro, Franklin, and Dickson, all suburbs of Nashville.[5][6]
First proposed by former Governor Lamar Alexander as part of a system of Bicentennial Parkways, I-840 was constructed between 1991 and 2012. The highway was originally planned as an Interstate Highway but was constructed entirely with state funds and initially designated as a state route for this reason.[3] In 2015, the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO) approved TDOT's request to redesignate SR 840 as I-840 as part of its integration into the Interstate Highway System. On August 12, 2016, TDOT announced that the route had officially been redesignated as I-840 and that resigning work would begin.[2]
- ^ Cite error: The named reference
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tdot20160812was invoked but never defined (see the help page). - ^ a b Tennessee Department of Transportation (2012). State Route 840: Enjoy the Ride (PDF) (Dedication program). Tennessee Department of Transportation. Archived from the original (PDF) on November 19, 2012. Retrieved June 12, 2015.
- ^ Adderly, Kevin (December 31, 2015). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2015". Route Log and Finder List. Federal Highway Administration. Archived from the original on July 3, 2017. Retrieved February 6, 2016.
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