Texas State Highway 342

State Highway 342
SH 342, highlighted in red
Route information
Maintained by TxDOT
Length	15.373 mi[1] (24.740 km)
Existed	1941–present
Major junctions
South end	US 77 in Red Oak
Major intersections	I-20 in Dallas
North end	Loop 12 in Dallas
Location
Country	United States
State	Texas
Highway system
Highways in Texas Interstate US State Toll Loops Spurs FM/RM Park Rec
← SH 341 → SH 343

State Highway 342 (SH 342) is a 15.373-mile (24.740 km) state highway in the U.S. state of Texas. The highway begins at a junction with U.S. Highway 77 (US 77) in Red Oak and heads north through Lancaster to a junction with Loop 12 (Loop 12) in Dallas.