 State Route 399 | ||||
|---|---|---|---|---|
| Barkertown Road Rifle Range Road | ||||
 TN 399 highlighted in red | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 10.6 mi (17.1 km) | |||
| Major junctions | ||||
| West end |  SR 108 on the Gruetli-Laager–Palmer city line | |||
| East end |   SR 8 / SR 111 in Cagle | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Grundy, Sequatchie | |||
| Highway system | ||||
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State Route 399 (SR 399) is 10.6-mile-long (17.1 km) east–west state highway in the Cumberland Plateau region of Tennessee. It serves to connect the towns of Gruetli-Laager and Palmer to Cagle and the Savage Gulf State Natural Area portion of South Cumberland State Park.
SR 399 is known as Barkertown Road in Grundy County and Rifle Range Road in Sequatchie County.