US 83's southern terminus is at a concurrency with
I-69E/
US 77 on the south side of
Brownsville at the
Brownsville – Veterans Port of Entry at the US/Mexico border. It remains co-signed with I-69E/US 77 until
Harlingen, where I-69E/US 77 makes a sharp turn northward and US 83 maintains a westerly route to
McAllen, concurrent with
I-2 until
Peñitas. From there, the highway roughly parallels the
Rio Grande until
Laredo where it makes a northwesterly turn toward
Carrizo Springs, the seat of
Dimmit County. The speed limit on US 83 is briefly 75 mph through Dimmit County. Merging with
I-35 just south of downtown, US 83 remains co-signed with the interstate until an exit at
Botines. From there, it continues northward, intersecting with
I-10 just south of
Junction. US 83 is co-signed with I-10 for approximately , turning northward and leaving I-10 at the Kimble County Airport. After continuing northward through several rural western Texas towns, US 83 merges with
US 84 east of
Tuscola, where it makes a sharp turn back to the north. US 83/84 remains a co-signed route until
Abilene. Within the city, the routes run along the Winters Freeway, named for Mayor
Jesse Winters, who was a strong advocate for the freeway's construction. In the south of the city, there is an interchange for
Bus. US 83 and the
Loop 322 freeway. On the west side of the city,
US 277 merges onto the freeway; US 84 then departs to the northwest while US 83 remains northbound. Next there is a full-access interchange with
I-20, followed by another interchange with Bus. US 83. Leaving the city, the freeway ends, dropping to a divided highway. US 83/277 remains a co-signed route until approximately north of
Anson, where US 277 turns northeast, and US 83, northwest. After merging with
US 380 in
Aspermont and briefly sharing a route, US 83 continues northward, merging with
US 62 in
Paducah. US 83/62 continues as a co-signed route until approximately south of
Wellington, where US 62 makes a sharp turn eastward, leaving US 83 to continue northward, where it crosses into Oklahoma approximately north of
Perryton. ==Future==