Tennessee State Route 186
| Keith Short Bypass Gibson Highway | ||||
SR 186, signed in red, unsigned in blue | ||||
| Route information | ||||
| Maintained by TDOT | ||||
| Length | 29.5 mi (47.5 km) | |||
| Existed | July 1, 1983–present | |||
| Major junctions | ||||
| North end | US 45W in Trenton | |||
| South end | US 45 / US 70 in Jackson | |||
| Location | ||||
| Country | United States | |||
| State | Tennessee | |||
| Counties | Gibson, Madison | |||
| Highway system | ||||
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State Route 186 (SR 186) is a state highway in the U.S. state of Tennessee. It runs from Trenton southward to Jackson, passing through the towns of Gibson and Three Way along the way. The southern portion serves as a western bypass for the city of Jackson, which is signed as U.S. Route 45 Bypass (US 45 Bypass).