| Route information | |
|---|---|
| Auxiliary route of I-55 | |
| Length | 26.7 mi (43.0 km) |
| Existed | 1964–present |
| NHS | Entire route |
| Major junctions | |
| West end | |
| East end | |
| Location | |
| Country | United States |
| States | Missouri, Tennessee |
| Counties | MO: Pemiscot TN: Dyer |
| Highway system | |
Interstate 155 (I-155) is an east–west auxiliary Interstate that goes in the U.S. states of Missouri and Tennessee. The highway is 26.7 miles (43.0 km) long. The highway connects I-55 with Dyersburg, Tennessee. I-155 is the only road that directly connects Missouri and Tennessee, using the Caruthersville Bridge over the Mississippi River.