U.S. Route 31W (US 31W) is a north‑south United States Numbered Highway that runs through the states of Tennessee and Kentucky. It is one of two split alignments of U.S. Route 31, the other being U.S. Route 31E. The highway serves as a major connector between Nashville, Tennessee, and Louisville, Kentucky, passing through several smaller communities and serving as a primary arterial in parts of both states.
Route description
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Tennessee – US 31W begins at an interchange with Interstate 65 (I‑65) in the Nashville suburb of Goodlettsville. It proceeds northward as a divided highway, known locally as Hillsboro Pike, before entering downtown Nashville where it runs concurrently with US 31 and US 41A along 8th Avenue North. After crossing the Cumberland River via the Lyle H. Fulton Bridge, the route continues north through Hendersonville, Gallatin, and Springfield, generally paralleling I‑65 but serving local traffic. The Tennessee segment terminates at the Kentucky state line near the town of Clarksville.
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Kentucky – Upon entering Kentucky, US 31W continues as a four‑lane surface road passing through the city of Bowling Green, where it intersects Interstate 65 (I‑65) and U.S. Route 68. The highway proceeds northward through Elizabethtown, intersecting Interstate 65 again, and then continues to the Louisville metropolitan area. In Louisville, US 31W becomes known as Brownsboro Road and later as Dixie Highway before joining US 150 and US 31E briefly before terminating at an interchange with I‑64/I‑65/I‑71 in downtown Louisville.
History
US 31W originated as part of the original U.S. Highway System established in 1926. The split into “E” (east) and “W” (west) alignments between Nashville and Louisville was implemented to provide separate routings that served different population centers and economic corridors. Over time, portions of the route have been realigned or upgraded, particularly in urban areas where freeway standards or limited‑access bypasses were constructed.
Key historical milestones include:
- 1926 – Designation of US 31W as the western split of US 31.
- 1930s–1940s – Paving and widening projects in rural Tennessee and Kentucky.
- 1960s–1970s – Construction of limited‑access freeway segments parallel to US 31W, notably the I‑65 corridor, which reduced through‑traffic on US 31W but left the route as a primary local artery.
- 1990s–2000s – Major reconstruction projects in Nashville and Louisville to improve safety, including the addition of medians, turn lanes, and upgraded intersections.
Major intersections
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Tennessee
- I‑65 (Goodlettsville)
- US 31/US 41A (Nashville)
- US 70S (Hendersonville)
- US 41 (Springfield)
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Kentucky
- I‑65 (Bowling Green)
- US 68 (Bowling Green)
- I‑65 (Elizabethtown)
- US 150 (Louisville)
- I‑64/I‑65/I‑71 (Louisville terminus)
Significance
US 31W functions as a critical regional connector, providing access to commercial districts, educational institutions, and residential neighborhoods along its corridor. It carries substantial local traffic, especially where it parallels the more limited‑access I‑65 freeway. The highway also serves as a commercial strip in many towns, featuring numerous retail establishments, service stations, and dining venues.
Current status
As of the latest available data (2023), US 31W remains fully signed and maintained by the Tennessee Department of Transportation (TDOT) and the Kentucky Transportation Cabinet (KYTC). Ongoing projects include targeted safety improvements such as the installation of additional pedestrian crossings, traffic signal upgrades, and pavement resurfacing in congested urban sections. No plans have been announced to decommission or significantly reroute the highway.
