Tennessee State Route 159
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| Route information | ||||
| Maintained by TDOT | ||||
| Length: | 12.5 mi (20.1 km) | |||
| Major junctions | ||||
| West end: |
  US 321 / SR 67 near Little Milligan |
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| East end: |
US 321 at North Carolina state line. |
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| Location | ||||
| Counties: | Carter, Johnson | |||
| Highway system | ||||
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Tennessee State Route 159 (SR 159) is a west to east highway in the U.S. state of Tennessee that is 12 miles (20 km) long. It begins in Carter County at State Route 67 and ends in Johnson County at the North Carolina state line. State Route 159 is little-known by the general public by this designation as it is overlain by U.S. Route 321; the "159" designation is seen on mileposts.
SR 159, overlain by US 321, traverses 12.5 miles (20.1 km) along the banks of Watauga Lake. It is a curvy two-lane mountain highway.
In 2011-12, a bridge replacement project closed a section of the highway at Elk River; a detour route was signed using both US 321 and SR 159, along SR 67 and US 421 in Tennessee to Vilas, North Carolina, where it ended.
State Route 159 traverses the counties shown in the table below.
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Wikipedia