U.S. Route 31W
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| Route information | |
| Length: | 179.2 mi (288.4 km) |
| Major junctions | |
| South end: |
      US 31 / US 31E / US 41 / US 431 / SR 6 / SR 11 in Nashville, TN
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| North end: |
 US 31 / US 31E / US 60 in Louisville, KY
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| Location | |
| States: | Tennessee, Kentucky |
| Counties: |
TN: Davidson, Sumner, Robertson KY: Simpson, Warren, Edmonson, Barren, Hart, LaRue, Hardin, Bullitt, Jefferson |
| Highway system | |
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| Location: | Elizabethtown |
| Length: | 3.758 mi (6.048 km) |
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| Location: | Elizabethtown, Kentucky |
| Length: | 4.592 mi (7.390 km) |
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| Location: | West Point, Kentucky |
| Length: | 1.988 mi (3.199 km) |
U.S. Route 31W (US-31W) is the westernmost of two parallel routes for U.S. Route 31 from Nashville, Tennessee to Louisville, Kentucky. At one time, it split with U.S. Route 31E at Sellersburg, Indiana, crossing into nearby Louisville via the Kentucky & Indiana Terminal Bridge. SR 41 is its unsigned companion route in Tennessee
US 31W begins in Nashville, at an interchange with Ellington Parkway and US 31/US 31E. The route continues west as Spring Street, concurrent with US 41/US 431/SR 11. The four highways continue north onto Dickerson Pike, closely paralleling Interstate 24 (I-24) through Nashville. At an intersection with Trinity Lane, all the routes but US 41 and SR 11 split from US 31W and continue west, while US 31W continues north, away from I-24. The roadway has an interchange with I-65 and SR 155 before an intersection with SR 45 in Bellshire Terrace. The highway passes through Goodlettsville, where US 31W splits from the other two routes and crosses I-65; it also passes through White House.
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Wikipedia