TN 6
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From: Alabama State Line below St. Joseph (Lawrence County)
To:  Kentucky State Line above Westmoreland (Sumner County)
Total Length:
150.3 miles
The route continues south 336 miles as AL 13 to end at US 90 Mobile AL
The route continues north as US 31E to end at Louisville KY
ROUTE LOG
AL STATE LINE: 0 - 0
TN 227 WB: 2.3 - 2.3
TN 227 EB: 4.6 - 6.9
TN 98: 7.9 - 14.8
US 64, TN 15: 3.2 - 18.0
TN 240: 16.1 - 34.1
Maury-Lawrence Line: 0.9 - 35.0
TN 20: 0.3 - 35.3
TN 243: 6.2 - 41.5
TN 166: 2.2 - 43.7
TN 6 CONN: 2.3 - 46.0
US 412 WB, US 412 Bus, TN 99: 5.8 - 51.8
TN 50: 1.3 - 51.3
TN 7 NB: 3.9 - 55.2
US 31 SB, US 43 END, US 412 EB, TN 7 SB, TN 99: 1.6 - 56.8
TN 246: 2.5 - 59.3
TN 396: 5.9 - 65.2
TN 247: 1.4 - 66.6
Williamson-Maury Line: 0.3 - 66.9
I-840 (exit 28): 5.1 - 72.0
TN 248: 0.9 - 72.9
US 31 NB, US 31 Bus Begin, TN 397: 4.2 - 77.1
TN 246: 2.0 - 79.1
US 431 Bus, TN 96 WB, TN 106: 0.1 - 79.2
TN 96 EB: 0.1 - 79.3
US 31 SB, US 31 Bus END, US 431, TN 397: 1.9 - 81.2
TN 441: 2.1 - 83.3
TN 253: 2.3 - 85.6
TN 252: 2.6 - 88.2
Davidson-Williamson Line: 0.2 - 88.4
TN 254: 0.1 - 88.5
TN 255: 3.7 - 92.2
TN 155: 1.6 - 93.8
US 31 ALT, US 41 SB, US 41 ALT SB, US 70S EB, TN 1 EB, TN 11 SB: 3.1 - 96.9
US 70, US 70S WB, US 431 SB, TN 1 WB, TN 24: 0.3 - 97.2
US 41 ALT NB, TN 12: 0.7 - 97.9
I-24 (exit 48): 1.2 - 99.1
US 31 END, US 31E Begin, US 31W, US 41 NB, US 431 NB, TN 11 NB: 0.1 - 99.2
US 31W, US 41, US 431, TN 11: 0.2 - 99.4
TN 155 WB: 4.8 - 104.2
TN 155 EB: 0.9 - 105.1
TN 45: 2.1 - 107.2
Sumner-Davison Line: 4.3 - 111.5
TN 6 CONN: 0.8 - 112.3
TN 258: 1.3 - 113.6
TN 385: 4.7 - 118.3
TN 109: 6.2 - 124.5
TN 25, TN 174 WB: 1.0 - 125.5
TN 174 EB: 1.5 - 127.0
US 231 SB, TN 376: 12.3 - 139.3
TN 52: 5.0 - 144.3
KY STATE LINE: 6.0 - 150.3
Creation: Appeared in 1923 as an original state highway, running generally as it does today.
Adjustments: About 1927, TN 6 was removed from Old Jackson Rd north of TN 20; Davis Cothran Rd; Williams Holler Rd; Old Hwy 43 in Sandy Hook
In late 1926, US 31 was assigned to TN 6 from Columbia to Kentucky.
By 1929, TN 6 was removed from TN 240/TN 20 through Summertown.
The 1929 Official shows TN 6 using TN 247/US 431 to go from Spring Hill to Franklin and the 1930 issue shows TN 6 using current US 31. This may have been a temporary routing during construction, as the 1906 topo shows a road where US 31 runs now.
In July 1929 (AASHO), US 31 north of Nashville became US 31E.
In 1930, TN 6 was placed on current US 31 from Franklin to Nashville. The old route became TN 106.

1929 Official
TN 6 Spring Hill to Nashville
1929 Official
1930 Official
TN 6 shifted to modern alignment
1930 Official

I am skeptical this was real, but in 1931 or 1932, TN 6 is shown on Tennessee State Officials as moving from Pruition Rd/TN 227 from the Alabama line at Iron City (this is clearly shown on the 1929 and 1930 Officials) to its current corridor due south of St Joseph.
In 1935, TN 6 was removed from Main St through St Joseph; Old US 43 loop; 2nd/Broad/Main through Loretto; lengthy Old Andrew Jackson Hwy from Loretto to TN 98; White Rd to Dunn; Old Florence Rd (now spilt by US 64); Military Ave through Lawrenceville
In 1937 or 1938, TN 6 was rerouted in Nashville to use Broadway to 1st to Deadrick
In 1939 or so, US 43 was added to TN 6 from Columbia south to Alabama. AASHO first created this in 1934 but Tennessee did not appear to accept it for several years.

1929 Official
TN 6 south of Columbia
1929 Official
1932 Official
TN 6 shifted at the state line
1932 Official
1937 Official
TN 6 rerouted to be east of RR everywhere
1937 Official

Around 1947, TN 6 was moved onto the new US 31 alignment in Columbia, leaving behind 7th St to the courthouse; Main St/E 5th/Riverside Dr north from there.
About 1949, TN 6 was removed from Rockland Rd in Hendersonville
About 1954, TN 6 was removed from Old Hwy 31 south of TN 396
Between 1952-56, TN 6 was rerouted in Nashville, to follow Deadrick to 8th then south to US 31-70 Broadway.
About 1960, TN 6 was rerouted in Nashville to leave 8th, using the new James Robertson Pkwy.
About 1962, TN 6 was removed from Alexander Springs Rd through Alexander Springs; Old Hwy 43 south of TN 240

1930 Official
TN 6 original Nashville routing
1930 Official
1932 Official
TN 6 moved from Broad to 8th approaching Nashville
1932 Official
1938 Official
TN 6 moved to 1st to Deaderick
1938 Official

About 1964, TN 6 was removed from TN 25/E Main St in Gallatin
About 1966, TN 6 was rebuilt from Gallatin to the Kentucky line. Surviving pieces: Sideview Rd in Shiloh; 3 short Old Hwy 31E loops up through Bethpage; the lengthy Old US Hwy 31E through Westmoreland and Sugar Grove. The northern bit of this is now part of TN 174.

1929 Official
TN 6 original routing north of Nashville
1929 Official
1971 Official
TN 6 shifted east of Westmoreland
1971 Official

In the 1970s, TN 6 was removed from James Roy Rd and S Old Hwy 43 north of TN 20.
About 1978, TN 6 was moved onto the Ellington Pkwy Freeway and TN 155, leaving behind Gallatin Pike through northeastern Nashville.

1966 Davidson County
TN 6 moved to Robertson Pkwy
1966 Davidson County
1986 Official
TN 6 moved onto Ellington Pkwy
1986 Official

Also about 1978, TN 6 was put on its bypass of Mt Pleasant, tying back into the old road at the Maury County airport. It is unclear if the non-TN 166 part of the old route received a new state route designation but today it is part of TN 243.
About 1989, TN 6 was placed on more new alignment from the Maury County airport to US 412 west of Columbia, then followed US 412 east into Columbia. The connector to TN 243 at the airport became TN 6 CONN and the route to Columbia via Trotwood avenue became more TN 243.
In 1999, TN 6 was removed from Lawrenceville Hwy in the Sandy Hook area.
In 2000, TN 6 was given its full bypass of Columbia, leaving behind US 412 Bus and US 31 within Columbia.

1986 Official
TN 6 bypasses Mt Pleasant
1986 Official
1993 Official
TN 6 on more new alignment
1993 Official
2001 Official
TN 6 bypasses Columbia
2001 Official

About 2007, TN 6 was removed from Shelton Dr in St Joseph
Posting: TN 6 is fully unposted.
TN 6 is mapped as secondary between TN 254 Brentwood and TN 155 in northern Nashville. TN 6 is considered primary everywhere else.
Secret US Route Overlay: US 43 (56.8 mi)
US 31 I (20.3 mi)
US 31 Bus (4.1 mi)
US 31 II (18.0 mi)
US 31E (51.1 mi)
Comment: TN 6 is a major corridor from Columbia southwest towards the Florence/Muscle Shoals AL area. TN 6 does still have independent utility north out of Nashville.


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Page last modified 24 July 2021