Texas State Highway Loop 20

Last updated

Texas Loop 20.svg

State Highway Loop 20
Bob Bullock Loop
Cuatro Vientos Road
Laredo Metro Map.jpg
Route information
Length14.869 mi [1] [lower-alpha 1] (23.929 km)
Existed1939 [1] –present
Major junctions
CW  endMX 85D at Mexican border on World Trade International Bridge
  I-35 (TX).svg US 83.svg I-35/US 83
I-69W (Future).svg US 59.svg Future I-69W/US 59
CCW  endMangana-Hein Road
Highway system
Texas Loop 19.svg Loop 19 Loop 21 Texas Loop 21.svg
Interstate 35 - Loop 20 (and Interstate 69W - U.S. 59 - U.S. 83) stacked interchange under construction Laredo IH35-Loop 20 Intersection.jpg
Interstate 35 - Loop 20 (and Interstate 69W - U.S. 59 - U.S. 83) stacked interchange under construction

Loop 20, also known as the Bob Bullock Loop and Cuatro Vientos Road, is a highway loop that runs to the north and east of the city of Laredo, Texas. Loop 20 extends from the World Trade International Bridge at its northern point to Mangana-Hein Road at its southern point. The current route varies in construction from a 2-lane road (at its southernmost end) to a freeway with frontage roads (near the World Trade Bridge).

Bob Bullock American politician

Robert Douglas Bullock, Sr., was a Democratic politician from Texas, whose career spanned four decades. His service culminated in his term as the 38th Lieutenant Governor of Texas from January 15, 1991 to January 19, 1999 during the term of Governor Ann Richards and the first term of Governor George W. Bush.

Laredo, Texas City in Texas, United States

Laredo is a city in and the county seat of Webb County, Texas, United States, on the north bank of the Rio Grande in South Texas, across from Nuevo Laredo, Tamaulipas, Mexico. Laredo has the distinction of flying seven flags. Founded in 1755, Laredo grew from a village to the capital of the brief Republic of the Rio Grande to the largest inland port on the Mexico–United States border. Laredo's economy is based on international trade with Mexico. Many major transportation companies have a facility in Laredo. The city is on the southern end of I-35 which makes it close to the manufacturers in northern Mexico. It has four international bridges and one railway bridge.

World Trade International Bridge

The World Trade International Bridge is one of 4 international bridges located in the cities of Laredo, Texas, and Nuevo Laredo, Tamaulipas, that connect the United States and Mexico over the Rio Grande. It is owned and operated by City of Laredo and the Secretaría de Comunicaciones y Transportes. It is also known as Laredo International Bridge 4.


In recent years, much of Laredo's growth has been along Loop 20, with the construction of a new passenger terminal at Laredo International Airport, the Laredo Energy Arena, the new campus of Texas A&M International University, and Doctors Hospital being the most prominent projects.

Laredo International Airport

Laredo International Airport is three miles northeast of downtown Laredo, in Webb County, Texas.

Texas A&M International University

Texas A&M International University (TAMIU) is a public university in Laredo, Texas. The university has a modern campus on a 300-acre (1.2 km2) site in Laredo, Texas. It is part of the Texas A&M University System and home to over 7500 students each academic semester. TAMIU offers over 70 undergraduate and degrees in the arts and sciences, business administration, and nursing in four colleges.


Loop 20 was designated on September 26, 1939 from US 96 (later US 59, and now SH 359) to US 83 in Laredo as a renumbering of SH 12 Loop. On September 27, 1985, Loop 20 extended from SH 359 to US 59. On August 29, 1996, it extended north to FM 3464 2 miles east of I-35. On May 28, 1998, Loop 20 extended west and southwest to the Mexico border, concurrent with part of FM 3464. On May 29, 2008, Loop 20 was to be rerouted south of SH 359 to US 83, with the old route (the original portion) to become Texas State Highway Spur 260. The section from SH 359 to Mangana-Hein Road (7 miles (11 km)) opened in 2011, and as a result, the old route was officially signed as Spur 260. On August 29, 2013, a shortcut opened south of SH 359, with the old route becoming Texas State Highway Spur 259.

Texas State Highway 12 highway in Texas

State Highway 12 (SH 12) is an east–west state highway that runs from I-10 in Vidor to Deweyville on the Texas-Louisiana boundary in east Texas. The route was designated on August 27, 1959 as a renumbering of SH 235 to smooth the travel transition with Louisiana Highway 12, with which it connects.

Texas State Highway Spur 260 highway in Texas

Texas Spur 260, also known as Jaime Zapata Memorial Highway, is a state highway in southeastern Laredo, Texas connecting U.S. Route 83 and Texas State Highway 359. The route was designated in 2008 but continued to be signed as part of Texas State Highway Loop 20 until the opening of Cuatro Vientos Road in July 2011, when the Loop 20 designation was shifted to the new route. The contemporary Spur 260 constitutes the original extent of Loop 20, as originally designated in 1939.

Future expansion

The Texas Department of Transportation's Laredo District is preparing for future growth with plans to upgrade Loop 20 into a freeway by building overpasses at major intersections and constructing frontage roads. [2] A short freeway section, which is co-signed with both Interstate 69W and U.S. Highway 59, currently exists from the World Trade International Bridge east to Interstate 35 and TxDOT recently constructed a diamond interchange at Loop 20's intersection with U.S. Highway 59 in eastern Laredo; [3] the stack interchange with Interstate 35, locally known as the Milo Interchange, is partially complete. As of 2008, TxDOT planned to complete interchanges and overpasses at all of Loop 20's major intersections within the next ten years. [4]

Texas Department of Transportation governmental agency in Texas

The Texas Department of Transportation is a government agency in the American state of Texas. Though the public face of the agency is generally associated with the construction and maintenance of the state's immense state highway system, the agency is also responsible for overseeing aviation, rail, and public transportation systems in the state.

Diamond interchange common type of road junction

A diamond interchange is a common type of road junction, used where a freeway crosses a minor road.

Stack interchange

A stack interchange, or colloquially butterfly junction, is a particular, free-flowing type of design for interchanges, meaning grade-separated road junctions. It is referred to as a directional interchange in the American Association of State Highway and Transportation Officials Policy on Geometric Design of Highways and Streets.

As of 2011, TxDOT is currently constructing an interchange at State Highway 359. An additional interchange at Clark Boulevard, Texas State Highway Spur 400, has been announced by the City of Laredo. [5]

Texas State Highway Spur 400 highway in Texas

Spur 400 is the state highway designation for the eastern portion of Clark Boulevard, from Arkansas Blvd to Loop 20, in Laredo, Texas. Spur 400 is a four-lane roadway, and is 1.174 miles (1.889 km) long.

The Cuatro Vientos Road portion of the route is designed for future expansion to a freeway throughout, as well as an extension to the south to U.S. 83 in the vicinity of Rio Bravo, possibly connecting to a future international bridge.

Rio Bravo, Texas City in Texas, United States

Rio Bravo is a city in Webb County, Texas, United States. The population was 4,794 at the 2010 census.

Laredo International Bridge 5 is a proposed bridge to be built on the U.S.-Mexico border between the southern portion of Webb County, Texas, and Nuevo Laredo, Tamaulipas.

Previous routes

The northwest section of Loop 20 west of I-35 to Farm to Market Road 1472 was originally part of Farm to Market Road 3464 , [6] [7] a 1.15-mile (1.9 km) road designated on October 26, 1983 to connect I-35 to FM 1472 in northern Laredo, Texas. On April 1, 1988, the route was extended east 2.0 miles (3.2 km) over FM 3488, which was cancelled. [8] On June 27, 1995, FM 3464 became Urban Road 3464. On June 29, 2000, FM 3464 was cancelled, as the section west of I-35 was removed from the state highway system, and the section east of I-35 was already part of Loop 20.

Junction list

The entire route is in Laredo, Webb County.

0.00.0 World Trade International Bridge; Southern terminus of I-69W/US 59
0.10.16U.S. Customs
1.11.8Texas FM 1472.svg FM 1472 (Mines Road) Laredo Colombia Solidarity Bridge
2.33.7I-35.svgI-69W.svg I-35 (US 83) / I-69W  San Antonio Current east end of freeway & current north end of I-69W overlap, 3 of 8 direct connectors open to traffic
3.76.0Hospital sign.svg McPherson RoadInterchange; westbound exit via the International Boulevard exit; access to Doctors Hospital of Laredo
4.77.6International BoulevardInterchange
6.210.0Shiloh DriveFuture interchange
7.311.7Del Mar BoulevardFuture interchange
8.113.0University Boulevard – Texas A&M International University Future interchange
9.315.0Jacaman RoadFuture interchange
10.516.9Airport Sign.svg Laredo International Airport Future interchange
11.518.5No image.svgFuture plate blue.svgNo image.svgNo image wide.svg
I-69W.svgUS 59.svgHospital sign.svg Future I-69W north / US 59 north
Interchange; east end of US 59 overlap; Future north end of I-69W overlap, access to Laredo Medical Center
12.520.1Texas Spur 400.svg Spur 400 west (Clark Boulevard)Interchange
13.121.1Texas 359.svgTexas Spur 260.svg SH 359 / Spur 260 south Hebbronville Interchange
15.124.3Jalapa StreetSouthbound access only
16.526.6Lomas Del Sur BoulevardFuture interchange
17.227.7La Pita Mangana RoadSouthbound access only
17.728.5Sierra Vista BoulevardFuture interchange
18.529.8Cielito Lindo BoulevardFuture interchange
21.033.8Mangana-Hein RoadCurrent southern terminus
I-2.svgUS 83.svg I-2 / US 83 Future Southern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. The certified mileage given is shorter than the actual mileage as TxDOT considers Loop 20 to be discontinuous at rather than concurrent with I-69W/US 59.

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  1. 1 2 Transportation Planning and Programming Division (n.d.). "State Highway Loop No. 20". Highway Designation Files. Texas Department of Transportation . Retrieved August 22, 2017.
  2. TxDOT Laredo District Loop 20 Mobility Project Archived 2007-07-06 at the Wayback Machine
  3. News Release: Loop 20-US 59 traffic switches - Loop 20 traffic over bridge Archived 2012-06-07 at the Wayback Machine
  4. Ashley Richards, "Corridor options narrow," Laredo Morning Times, June 12, 2008.
  5. "Archived copy". Archived from the original on 2011-07-15. Retrieved 2010-06-25.CS1 maint: archived copy as title (link)
  6. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 3464". Highway Designation Files. Texas Department of Transportation.
  7. Transportation Planning and Programming Division (n.d.). "Urban Road No. 3464". Highway Designation Files. Texas Department of Transportation.
  8. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 3488". Highway Designation Files. Texas Department of Transportation . Retrieved August 22, 2017.