Tennessee State Route 66
SR 66; primary in red, secondary in blue, unsigned in green | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 86.25 mi (138.81 km) | |||
| Existed | October 1, 1923–present | |||
| Major junctions | ||||
| South end | US 441 / US 411 at Sevierville | |||
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| North end | SR 31 / SR 33 at Sneedville | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Sevier, Jefferson, Hamblen, Hawkins, Hancock | |||
| Highway system | ||||
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State Route 66 (SR 66) is a state-maintained highway in eastern Tennessee, including a six-lane divided highway known as Winfield Dunn Parkway in Sevier County, a four-lane expressway in Hamblen and Jefferson counties and a two-lane rural collector through mountainous terrain continuing to the northeast terminus in Hancock County.