Tennessee State Route 397

State Route 397 (SR 397), also known as the Mack Hatcher Memorial Parkway, is a primary state route that serves as the perimeter road for the city of Franklin, Tennessee. Throughout its length, SR 397 also carries the designations of U.S. Route 31 Truck (US 31 Truck) and U.S. Route 431 Truck (US 431 Truck).

State Route 397
Mack Hatcher Memorial Parkway
Route information
Maintained by TDOT
Length7.4 mi (11.9 km)
Major junctions
South end US 31
 
North end US 431
Location
CountiesWilliamson
Highway system
← SR 396→ SR 399

Route description

SR 397 begins as a two-lane highway south of Franklin at an intersection with US 31 / SR 6 (Columbia Avenue), where it picks up US 31 Truck. It heads east to cross over some railroad tracks before passing through subdivisions and coming to an intersection with US 431 / SR 106 (Lewisburg Pike), where it picks up US 431 Truck. The highway then crosses the Harpeth River to turn north and pass through more wooded areas before having an intersection with SR 96 (Murfreesboro Road), where it widens to 4-lane divided highway. SR 397 passes by more subdivisions before curving to the west and passing through more rural areas to have another intersection with US 31/SR 6 (Franklin Road), where US 31 Truck ends. It continues west to cross the Harpeth River for a second time before coming to an end at an intersection with US 431/SR 106 (Hillsboro Road).[1][2]

Future

On December 2, 2005, the Tennessee Department of Transportation (TDOT) announced that the preferred alignment for the Mack Hatcher Parkway Western Extension would be Alternate G. This route, 7.5 miles (12.1 km) long, begins at US 31/SR 6 south of Franklin (Columbia Highway) and ends at US 431/SR 106 north of Franklin (Hillsboro Road). It will go around the west side of Franklin. The Western Extension will create a complete perimeter around Franklin, divert through traffic from the city, and provide easy access to other nearby routes.[3] Work began on the first segment of the extension, a length of 3.2 miles (5.1 km) in December 2018, and is expected to be completed in November 2021.[4]

Major intersections

The entire route is in Franklin, Williamson County.

mikmDestinationsNotes
0.00.0 US 31 (Columbia Highway/SR 6) – Franklin, Spring Hill

US 31 Truck begins		Southern terminus of SR 397 and US 31 Truck
1.82.9 US 431 (Lewisburg Pike/SR 106) – Franklin, Lewisburg

US 431 Truck begins		Southern terminus of US 431 Truck
2.03.2Staff Sergeant Carey Thomas Moore Memorial Bridge over the Harpeth River
3.25.1 SR 96 (Murfreesboro Road) – Franklin, Murfreesboro
5.79.2 US 31 (Franklin Road/SR 6) – Franklin, Brentwood

US 31 Truck ends		Northern terminus of US 31 Truck
6.810.9Matthew James Bergman Memorial Bridge over the Harpeth River
7.411.9 US 431 (Hillsboro Road/SR 106) – Franklin, Forest Hills

US 431 Truck ends		Current northern terminus; northern terminus of US 431 Truck
SR 96 (New Highway 96) – Franklin, FairviewPart of the proposed Western Extension
SR 246 (Carters Creek Pike) – Franklin, BurwoodPart of the proposed Western Extension
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References
  1. TDOT. "Franklin city map" (PDF). www.tn.gov. Retrieved October 14, 2019.
  2. Tennessee Atlas & Gazetteer (Map) (2004 ed.). DeLorme.
  3. "State Route 397 - Tennessee Department of Transportation". Tennessee Department of Transportation. Archived from the original on August 12, 2008. Retrieved June 3, 2008.
  4. "State Route 397 (Mack Hatcher Parkway) Extension". tn.gov/tdot. Tennessee Department of Transportation. Retrieved June 2, 2020.
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