State Route 15 is a west–east route from Memphis, Tennessee

Memphis, Tennessee

Memphis is a city in the southwestern corner of the U.S. state of Tennessee, and the county seat of Shelby County. The city is located on the 4th Chickasaw Bluff, south of the confluence of the Wolf and Mississippi rivers....

 to Monteagle

Monteagle, Tennessee

Monteagle is a town in Franklin, Grundy, and Marion counties in the U.S. state of Tennessee, in the Cumberland Plateau region of the southeastern part of the state...

. For much of its route it is concurrent with U.S. Route 64.

Route description

SR-15 begins at an intersection with SR-14, the Austin Peay Highway, in northern Memphis. It proceeds east through Shelby County

Shelby County, Tennessee

Shelby County is a county located in the U.S. state of Tennessee. It is the state's largest both in terms of population and geographic area, with a population of 927,644 at the 2010 census...

 and intersects US-70

U.S. Route 70 in Tennessee

US 70 enters Tennessee, as well as the city of Memphis, concurrent with Interstate 55, US 61, US 64, and US 79. At exit 12, the northernmost exit on I-55 in the state, I-55 turns south; however, the four US routes continue east onto the at-grade Crump Boulevard. US 61 splits from the concurrency...

, where it begins a concurrency with US-64. The cosigned routes cross I-40

Interstate 40 in Tennessee

In the state of Tennessee, Interstate 40 traverses the entirety of the state from west to east, running from the Mississippi River at the Arkansas border to the northern base of the Great Smoky Mountains at the North Carolina border...

 and SR-385 (future I-269). SR-15 and US-64 travel together through Fayette, Hardeman, McNairy, Hardin

Hardin County, Tennessee

Hardin County is a county located in the U.S. State of Tennessee. As of 2010, the population was 26,026. The Hardin County seat is Savannah. The county was named posthumously for Col. Joseph Hardin, a Revolutionary War soldier and a legislative representative for the Province of North Carolina and...

, Wayne

Wayne County, Tennessee

As of the census of 2010, there were 17,021 people, 5,822 households, and 4,321 families residing in the county. The population density was 23 people per square mile . There were 6,701 housing units at an average density of 9 per square mile...

, Lawrence, Giles, Lincoln

Lincoln County, Tennessee

Lincoln County is a county located in the U.S. state of Tennessee. , the population was 31,340. Its county seat is Fayetteville. It is named for Major General Benjamin Lincoln, an officer in the American Revolutionary War.-History:...

, and Franklin

Franklin County, Tennessee

Franklin County is a county located in the U.S. state of Tennessee. As of 2010, the population was 41,052. Its county seat is Winchester.Franklin County is part of the Tullahoma, Tennessee, Micropolitan Statistical Area.-History:...

Counties.