Texas State Highway 4

State Highway 4
SH 4 highlighted in red
Route information
Maintained by TxDOT
Length	24.4 mi[1] (39.3 km)
Existed	April 4, 1917–present
Major junctions
West end	Fed. 180 in Matamoros, Tamaulipas, Mexico
Major intersections	I-69E / US 77 / US 83 in Brownsville SH 48 in Brownsville
East end	Boca Chica Beach
Location
Country	United States
State	Texas
Highway system
Highways in Texas Interstate US State Toll Loops Spurs FM/RM Park Rec
← RE 3 → Loop 4

State Highway 4 (SH 4), known locally as Boca Chica Boulevard, is an east–west state highway in the U.S. state of Texas that runs from the Gateway International Bridge in Brownsville to the Gulf of Mexico at Boca Chica Beach. Outside of Brownsville, it roughly parallels the Rio Grande. It is the southernmost Texas state highway.