 State Highway Loop 20 | ||||
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| Route information | ||||
| Maintained byTxDOT | ||||
| Length | 14.869 mi[1][a] (23.929 km) | |||
| Existed | 1939[1]–present | |||
| Major junctions | ||||
| CCW (North) end |   I-69W /US 59 / Fed. 85D atMexican border onWorld Trade International Bridge | |||
| Major intersections | ||||
| CW (South) end | Mangana-Hein Road | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Highway system | ||||
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Loop 20, also known as theBob Bullock Loop andCuatro Vientos Road, is a highway loop that runs to the north and east of the city ofLaredo, Texas. Loop 20 extends from theWorld 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).
In recent years, much of Laredo's growth has been along Loop 20, with the construction of a new passenger terminal atLaredo International Airport, theSames Auto Arena, theUni-Trade Stadium, the new campus ofTexas A&M International University, andDoctors Hospital being the most prominent projects.
Loop 20 was designated on September 26, 1939 fromUS 96 (later US 59, and nowSH 359) to US 83 in Laredo as a renumbering ofSH 12 Loop. On September 27, 1985, Loop 20 was extended from SH 359 to US 59. On August 29, 1996, it was extended north to FM 3464 2 miles east of I-35. On May 28, 1998, Loop 20 was 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 becomeTexas 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 becomingTexas State Highway Spur 259. On February 27, 2014 the section from the entrance to the World Trade Bridge (0.6 miles west of FM 1472) to the intersection with US 59 was redesignated as US 59, but on July 31, 2014 the Loop 20 designation was restored on this section as a concurrency with US 59.
TheTexas Department of Transportation's Laredo District is preparing for future growth with plans to upgrade Loop 20 into afreeway by building overpasses at major intersections and constructing frontage roads.[2] A short freeway section, which is co-signed with bothInterstate 69W andU.S. Highway 59, currently exists from the World Trade International Bridge east toInterstate 35 and TxDOT recently constructed adiamond interchange at Loop 20's intersection with U.S. Highway 59 in eastern Laredo;[3] thestack 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]
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]
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 ofRio Bravo, possibly connecting to a futureinternational bridge.
Loop 20 may be part ofInterstate 2 extension. It would terminate at US 59.[6]
The northwest section of Loop 20 west ofI-35 toFarm to Market Road 1472 was originally part ofFarm to Market Road 3464,[7][8] a 1.15-mile (1.9 km) road designated on October 26, 1983 to connect I-35 to FM 1472 in northernLaredo, Texas. On April 1, 1988, the route was extended east 2.0 miles (3.2 km) overFM 3488, which was cancelled.[9] On June 27, 1995, FM 3464 becameUrban 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.
The entire route is inLaredo,Webb County.
| mi | km | Destinations | Notes | ||
|---|---|---|---|---|---|
| 0.0 | 0.0 | World Trade International Bridge; Southern terminus of I-69W/US 59 | |||
| 0.1 | 0.16 | U.S. Customs | |||
| 1.1 | 1.8 |  FM 1472 (Mines Road) | |||
| 2.3 | 3.7 |  I-35 (US 83) –Laredo,San Antonio I-69W ends | Current east end of I-69W overlap; 5 of 8 direct connectors open to traffic | ||
| 3.7 | 6.0 |  McPherson Road | Westbound exit via the International Boulevard exit; access toDoctors Hospital of Laredo | ||
| 4.7 | 7.6 | International Boulevard | Interchange; current east end of freeway | ||
| 6.2 | 10.0 | Shiloh Drive | Future interchange | ||
| 7.3 | 11.7 | Del Mar Boulevard | Future interchange | ||
| 8.1 | 13.0 | University Boulevard –Texas A&M International University | Future interchange | ||
| 9.3 | 15.0 | Jacaman Road | Future interchange | ||
| 10.5 | 16.9 |  Laredo International Airport | Future interchange | ||
| 11.5 | 18.5 |    Future I-69W north /US 59 north (Lloyd Bentsen Highway) / Saunders Street west | Interchange; east end of US 59 overlap; future east end of I-69W overlap; north end of freeway; access to Laredo Medical Center | ||
| 12.5 | 20.1 |  Spur 400 (Clark Boulevard) | |||
| 13.1 | 21.1 |   SH 359 /Spur 260 –Hebbronville | Interchange; south end of freeway | ||
| 15.1 | 24.3 | Jalapa Street | Southbound access only | ||
| 16.5 | 26.6 | Lomas Del Sur Boulevard | Future interchange | ||
| 17.2 | 27.7 | La Pita Mangana Road | Southbound access only | ||
| 17.7 | 28.5 | Sierra Vista Boulevard | Future interchange | ||
| 18.5 | 29.8 | Cielito Lindo Boulevard | Future interchange | ||
| 21.0 | 33.8 |   Mangana-Hein Road toUS 83 | Current southern terminus; access to US 83 via westbound Mangana-Hein Road | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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