Texas State Highway 4

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State Highway 4 marker

State Highway 4
Route information
Maintained by TxDOT
Length24.4 mi[1] (39.3 km)
ExistedApril 4, 1917–present
Major junctions
West endMX 180 in Matamoros, Tamaulipas, Mexico
  I-69E / US 77 / US 83 in Brownsville
SH 48 in Brownsville
East endBoca Chica State Park
Highway system
RE 3Loop 4

State Highway 4 or SH 4 is an east–west state highway that runs from the Gateway International Bridge in Brownsville to the Gulf of Mexico at Boca Chica State Park. Outside of Brownsville, it parallels the Rio Grande. It is the southernmost Texas state highway.


Old Texas 4.svg

SH 4 was one of the original twenty-five state highways proposed on June 21, 1917, overlaid on top of the Del Rio – Canadian Highway.[2] From 1917 the routing mostly followed present-day U.S. Highway 83 from Perryton, Childress, to Aspermont. From there, it followed present-day FM 610 and SH 70 to Blackwell. It then continued down present-day U.S. Highway 277 into San Angelo and Sonora and Del Rio. On February 7, 1919, SH 4 was rerouted to end at Uvalde, and the old route from Sonora to Del Rio was cancelled.[3] On April 22, 1919, the branch to Del Rio was restored.[4] The road at this time also had numerous alternate routes simultaneously marked as SH 4, along with occasionally signed SH 4A routes (although most of those routes were given their own numbers by the 1930s).

On August 21, 1923, the eastern branch from Sonora to Uvalde was renumbered as part of State Highway 55.[5] The section of SH 4 from Childress to Aspermont was cancelled, The section from Aspermont to San Angelo was renumbered as SH 70, and the section south of San Angelo became part of SH 30. On September 9, 1927, SH 4 was extended through Aspermont to Hamlin, and another section from Santa Anna to Brady was added, taking over SH 107.[6] On December 6, 1927, SH 4 extended from Hamlin to Anson, partially closing the gap.[7] SH 4 followed existing highways through Abilene and Coleman. On August 6, 1929 (not official until September 1, 1929), U.S. Highway 83 was extended into Texas, and SH 4 was rerouted to match US 83, following SH 30 to Ballinger, Texas, replacing SH 23 to Junction, new construction to Uvalde, replacing SH 55 to Catarina, new construction (cancelling the portion of SH 55 from Catarina to Artesia Wells; this would be restored as SH 189 on November 30, 1932) to Laredo, replacing SH 12B to Pharr, and replaced part of the now severely reworked SH 12 to Brownsville.[8] The old route from Brady to Santa Anna was changed back to SH 107. On November 30, 1932, SH 4 was rerouted through Hidalgo.[9] On January 19, 1935, this route was swapped with SH 48.[10] On February 11, 1935, SH 4 was extended to Boca Chica.[11] On September 26, 1939, the route was turned over to U.S. Route 83, with the only remaining portion of SH 4 being the current routing from Brownsville eastward. On May 29, 1997, SH 4 extended southwest over the old route of US 77 and US 83 to the Gateway International Bridge.

Route description[edit]

SH 4 begins at the Gateway International Bridge in downtown Brownsville, travelling northeast on International Blvd. A mile later, it reaches I-69E/US 77/83. This first one-mile (1.6 km) section was previously the final stretch of US 77 and 83 before they were rerouted to the southeast around downtown to the Veteran's International Bridge. SH 4 continues northeast, passing the intersection with Farm to Market Road 1418, until it reaches an intersection with SH 48 at Boca Chica Blvd. SH 4 turns east onto Boca Chica Blvd. About a mile to the east is the cutoff for Farm to Market Road 2519, which leads to the Brownsville/South Padre Island International Airport. SH 4 continues east, passing along the north side of the airport grounds and meeting intersections with Farm to Market Roads 313 and 511. SH 4 exits Brownsville continuing east near the southern side of the Port of Brownsville. This section passes a few historical landmarks, including the site of the Battle of Palmito Ranch, site of the final battle of the American Civil War. The highway continues east-northeast, past Boca Chica Village and SpaceX's under construction launch site, until it reaches a stop sign at Boca Chica Beach and Brazos Island State Park.

Major intersections[edit]

The entire route is in Cameron County.

Brownsville0.00.0 Fed. 180 at the International BridgeMexican border (Rio Grande)
Elizabeth Street - Fort Brown

Bus. US 77 north (Washington Street) – Downtown Brownsville
0.91.4 I-69E / US 77 / US 83 – Harlingen, Veterans International Bridge, UT-Brownsville, Texas Southmost CollegeI-69E exit 1A; interchange.
1.72.7 FM 1419 east (Southmost Boulevard)
2.54.0 SH 48 (Padre Island Highway / Boca Chica Boulevard) – Port of Brownsville, South Padre Island
3.25.1 FM 2519 south (Billy Mitchell Boulevard) – International Airport, Confederate Air Force
4.87.7 FM 313 north (Minnesota Avenue)
6.310.1 FM 511 (Indiana Avenue) – Port Brownsville
FM 1419 west
24.439.3Boca Chica Beach
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ Transportation Planning and Programming Division (n.d.). "State Highway No. 4". Highway Designation Files. Texas Department of Transportation. Retrieved 2008-03-15.
  2. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676699.pdf. Missing or empty |title= (help)
  3. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676789.pdf. Missing or empty |title= (help)
  4. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676796.pdf. Missing or empty |title= (help)
  5. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676878.pdf. Missing or empty |title= (help)
  6. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676981.pdf. Missing or empty |title= (help)
  7. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003676985.pdf. Missing or empty |title= (help)
  8. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673785.pdf. Missing or empty |title= (help)
  9. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673821.pdf. Missing or empty |title= (help)
  10. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673862.pdf. Missing or empty |title= (help)
  11. ^ (PDF) https://publicdocs.txdot.gov/minord/MinuteOrderDocLib/003673863.pdf. Missing or empty |title= (help)
  12. ^ Google Maps, "Archived copy". Archived from the original on 2008-02-20. Retrieved 2008-02-21.CS1 maint: Archived copy as title (link)
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