Tennessee State Route 175
|Length:||25 mi (40 km)|
|West end:||MS 301 (Mississippi State Line) near Horn Lake|
| US 61 in Memphis
US 51 in Memphis
US 78 in Memphis
SR 385 near Collierville
|East end:||US 72 / SR 57 in Collierville|
The original SR-175 was on a different route before 2004, when the last 2 miles (3.2 km) of East Shelby Drive were included into the route. The original road took a sharp left onto what is now Houston Levee Road for 0.4 miles (0.64 km), then a sharp right onto what is now Collierville Road, and continued east for 2.4 miles (3.9 km), until reaching Byhalia Road, and taking a sharp left, continuing to the end of the current route. These last 2.4 miles of SR 75 (Collierville Road) have undergone rigorous construction since about 1998, and barely one-third of the current road follows exactly the original route.
Prior to the 1980s, Shelby Drive was known as "Whitehaven-Capleville Road" or "Whitecap" for short; also, the portion of the current route between Fleming Road and Byhalia Road in Collierville was called "Mann Road." 
State Route 175 begins in extreme southwestern Shelby County, Tennessee as a continuation of Mississippi 301 along Weaver Road. It intersects Highway 61 (Third Street) and travels with it until Shelby Drive where it turns east. After about 1 mile (1.6 km), SR-175 passes Greeter Park and intercepts Horn Lake Road as a crossroads, and becomes East Shelby Drive, passing through the community of Persey. SR-175 then crosses the Illinois Central Railroad. From this point, SR-175 travels another 2.4 miles through South Memphis, and intercepts U. S. Route 51 (State Route 3/Elvis Presley Boulevard). Then, SR-175 continues for 1.3 miles (2.1 km), and intercepts Interstate 55. Shortly after, intercepting Airways Boulevard and passing the Memphis International Airport. After passing the airport, SR-175 continues for another 2 miles, SR-175 then intercepts U. S. Route 78 (State Route 4/Lamar Avenue) within the community of Capleville and crosses the BNSF Railway twice.
After 3.5 miles (5.6 km), and crossing several major city roads, SR-175 (East Shelby Drive) crosses South Germantown Road and enters Germantown, Tennessee. It then intercepts Hacks Cross Road after 1.5 miles (2.4 km).
Following another 2 miles, SR-175 (East Shelby Drive) shares a crossroads with Forest Hill Irene Road, entering Collierville, Tennessee, and becoming a two-lane road. For the next 2 miles SR-175 is somewhat rural, then crossing South Houston Levee Road. SR-175 then briefly widens to six lanes for 0.6 miles (0.97 km) before crossing Fleming Road, and then goes another 0.5 miles (0.80 km) along a narrow rural route before stopping at Byhalia Road. SR-175 turns left onto Byhalia Road and heads nearly due north. SR-175 continues for 1 mile until widening to four lanes and crossing State Route 385. SR-175 then travels 1 mile before the designation ends at Poplar Avenue (U. S. Route 72/State Route 57) in the heart of the Collierville business district. Although State Route 175 stops here, Byhalia Road continues.
The last 0.5 miles of SR-175 on East Shelby Drive is proposed to be moved and widened to six lanes the Autumn of 2011. Also, the 0.25-mile (0.40 km) segment of SR-175 on Byhalia Road, between East Shelby Drive and SR 385 is proposed to be widened to six lanes around the same time.