Texas State Highway 186
SH 186, highlighted in red | ||||
| Route information | ||||
| Maintained by TxDOT | ||||
| Length | 47.71 mi (76.78 km) | |||
| Existed | 1932–present | |||
| Major junctions | ||||
| West end | Future I-69C / US 281 / FM 1017 in Linn | |||
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| East end | North Shore Drive in Port Mansfield | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Counties | Hidalgo, Willacy | |||
| Highway system | ||||
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State Highway 186 (SH 186) is a state highway in the Rio Grande Valley in Hidalgo and Willacy counties in Texas, United States, that connects U.S. Route 281 (US 281), future Interstate 69C (Future I-69C), and Farm to Market Road 1017 (FM 1017) in Linn with the Gulf of Mexico at Port Mansfield.