 State Route 146 | ||||
|---|---|---|---|---|
 SR 146 highlighted in red | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 17.2 mi (27.7 km) | |||
| Major junctions | ||||
| North end |  US 70 in Smithville | |||
| South end |  US 70S in Bluewing | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Cannon, DeKalb | |||
| Highway system | ||||
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State Route 146 (SR 146) is a relatively short north–south highway in Middle Tennessee. The road begins northwest of Centertown and ends in Smithville. The current length is 17.2 mi (27.7 km),[1] shortened by approximately 0.19 mi (0.31 km) from the original length when U.S. 70S was routed northward along a new four-lane alignment.