Tennessee State Route 1

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State Route 1
Memphis to Bristol Highway
TN SR 1 highlighed. Red primary designation and Black secondary designation.
Route information
Maintained by TDOT
Length	538.8 mi (867.1 km)
Existed	October 1, 1923[1]–present
History	Designated Memphis to Bristol Highway in 1915[2]
Major junctions
West end	I-55 / US 61 / US 64 / US 70 / US 78 / US 79 at the Arkansas state line at Memphis
Major intersections	I-40 east of Brownsville I-40 / US 412 northeast of Jackson I-40 southwest of Belle Meade I-440 in Nashville I-840 northwest of Murfreesboro I-140 in Knoxville I-40 in Knoxville I-26 / US 23 in Kingsport I-81 in Bristol
East end	US 11E / US 19 / SR 34 in Bristol
Location
Country	United States
State	Tennessee
Counties	Shelby, Fayette, Tipton, Haywood, Madison, Carroll, Benton, Humphreys, Dickson, Cheatham, Davidson, Rutherford, Cannon, Warren, Van Buren, White, Cumberland, Roane, Loudon, Knox, Grainger, Hawkins, Sullivan
Highway system
Tennessee State Routes Interstate US State
← I-840 → SR 2

State Route 1 (SR 1), known as the Memphis to Bristol Highway, is a 538.8-mile-long (867.1 km) mostly-unsigned state highway in the U.S. state of Tennessee. It stretches from the Arkansas state line at Memphis in the southwest corner of the state to Bristol in the northeast part. Most of the route travels concurrently with U.S. Route 70 (US 70) and US 11W. It is the longest highway of any kind in the state of Tennessee. The route is signed as both in the state of Tennessee, a Primary and Secondary Highway (at different times throughout its designation)

In 2015, the Tennessee Department of Transportation erected signs along SR 1 showing motorists they are traveling on the Memphis to Bristol Highway, Tennessee's first state road. TDOT installed the signs at every county line while it celebrated its 100th anniversary.