Texas State Highway 78
SH 78, mainline in red, business routes in blue | ||||
| Route information | ||||
| Maintained by TxDOT | ||||
| Length | 90.83 mi (146.18 km) | |||
| Existed | 1923–present | |||
| Major junctions | ||||
| South end | I-30 in Dallas | |||
| North end | SH-78 at Texas–Oklahoma state line | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Highway system | ||||
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State Highway 78 (SH 78) is a state highway that follows surface roads in a predominantly southwest-to-northeast direction in the Dallas area before traveling 90 miles (145 km) north-northeast to the Oklahoma State border.