Tennessee State Route 81

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State Route 81

TN 81 in red
Route information
Maintained by TDOT
Length25.7 mi (41.4 km)
Major junctions
South end I-26 / US 23 / US 19W / SR 107 in Erwin
Major intersections SR 107 in Lamar
North end SR 93 near Fall Branch
CountryUnited States
CountiesUnicoi, Washington
Highway system
I-81 SR 82

State Route 81 (SR 81) is a 25.7-mile-long (41.4 km) state highway in northeastern Tennessee. It travels in Unicoi and Washington counties. It connects Fall Branch with Erwin.

Route description

SR 81 beings in Unicoi County at an interchange with I-26/US 23/US 19W (Exit 37) in Erwin (with the road continuing south as SR 107). It goes north from this interchange concurrent with SR 107. The two routes leave Erwin and continue north to parallel the Nolichucky River before crossing into Washington County.

SR 81/SR 107 continue north to pass through Embreeville, where they cross over a bridge over the Nolichucky River, before entering the community of Lamar, where SR 107 turns west and SR 81 continues north. SR 81 then crosses a second bridge over the Nolichucky River before having an intersection with SR 67. The highway then leaves Lamar and the Nolichucky River to continue north through rural farmland before having an intersection with SR 353 and entering Jonesborough. SR 81 then enters downtown and has intersections with two roads that provide access to U.S. Routes 11E and 321 and SR 34, Persimmon Ridge Road and Washington Drive. SR 81 then leaves Jonesborough and continues north through rural areas to junction with SR 75. SR 81 then continues north for several more miles before coming to an end at SR 93 about 3 miles (4.8 km) south of Fall Branch, just about a mile south of its interchange with I-81.

Junction list

I-26 / US 23 / US 19W / SR 107 east (Jonesborough Road) – Asheville, Johnson City, Kingsport, Erwin
I-26 exit 37; southern terminus & southern end of SR 107 concurrency
SR 107 west (Erwin Highway) – Tusculum, Greeneville
Northern end of SR 107 concurrency

SR 67 east (Cherokee Road) – Johnson City
Western terminus of SR 67
SR 353 south (Old State Route 34) – South Central
Northern terminus of SR 353
Persimmon Ridge Road/Truck Route To
US 11E / US 321 (West Jackson Boulevard/SR 34) – Tusculum, Greeneville
Washington Drive To US 11E / US 321 – Johnson City
SR 75 (Bowmantown Road / Gray Station-Sulphur Springs Road) – Sulphur Springs, Bowmantown
SR 93 to I-81 – Greeneville, Fall Branch, Kingsport
Northern terminus; access to I-81 via SR 93 north
1.000 mi = 1.609 km; 1.000 km = 0.621 mi