Texas State Highway 48

State Highway 48 (SH 48) runs from Brownsville to Port Isabel in Deep South Texas.

State Highway 48 marker

State Highway 48

Route information
Maintained by TxDOT
Length22.26 mi[1] (35.82 km)
Existedby 1930[2]–present
Major junctions
West end
 US 281 / Bus. US 77 in Brownsville
Major intersections I-69E / US 77 / US 83 in Brownsville

 Future I-169 / SH 550 Toll
East end SH 100 in Port Isabel
Location
CountryUnited States
StateTexas
CountiesCameron
Highway system
← SH 47→ SH 49

Route description

SH 48 begins at an intersection with Business Route 77 and the southern terminus of U.S. Route 281 on the west side of Brownsville. the road travels east through Brownsville on Boca Chica Boulevard, intersecting I-69E/US 77/US 83. It turns northeast at an intersection with SH 4 and past the Port of Brownsville (the former routing travels through the port grounds). The route then travels across the sandy flats near the coast of the Gulf of Mexico, before reaching its eastern terminus at SH 100 on the far northwestern edge of Port Isabel.

Route history

SH 48 was originally designated on August 21, 1923, from Daingerfield east through Linden to Atlanta as a renumbering of a portion of SH 1A.[3] On June 24, 1931, this route was redesignated as a rerouting of SH 47.[4] SH 48 was instead designated on that same day from Pharr through Harlingen to Brownsville, along the current route of U.S. Highway 83. On November 30, 1932, it was extended west to Mission, replacing part of SH 4.[5] On January 19, 1935, this route was swapped with SH 4, which ran closer to the Rio Grande along Military Highway, and was extended east out of the city to the Port of Brownsville.[6] On September 26, 1939, it was replaced an extension of SH 107 from Mission to Hidalgo and US 281 from Hidalgo to Brownsville, so that only the section from Brownsville to the port was left.[7] On October 28, 1973, SH 48, was signed to Port Isabel along Farm to Market Road 1792. On August 26, 1990, it was officially extended over Farm to Market Road 1792.[8]

Major intersections

The entire route is in Cameron County.

LocationmikmDestinationsNotes
Brownsville0.000.00

 US 281 west (Boca Chica Boulevard) / Bus. US 77 (Central Boulevard)		Western terminus of SH 48; road continues as US 281 (Boca Chica Boulevard)
1.32.1


 To I-69E / US 77 / US 83 / Frontage Road		Exit 2 on I-69E.
1.42.3
 FM 1847 north (Paredes Line Road)		Southern terminus of FM 1847
2.94.7 SH 4
5.58.9 FM 313 (Minnesota Avenue)
5.89.3 FM 802 (Reuben M. Torres Boulevard)
6.410.3 FM 511 – Port of BrownsvilleInterchange
​7.612.2


 SH 550 Toll west to I-169 north – Corpus Christi, Port of Brownsville Main Entrance		Interchange
Port Isabel21.935.2 SH 100 – South Padre Island, U.S. Coast GuardEastern terminus of SH 48
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Route transition

References
  1. Transportation Planning and Programming Division (n.d.). "State Highway No. 48". Highway Designation Files. Texas Department of Transportation.
  2. 1930 Cameron County quad map
  3. "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. August 21, 1923. Archived (PDF) from the original on October 26, 2017. Retrieved 2 May 2023.
  4. "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. June 22, 1931. Archived (PDF) from the original on January 29, 2018. Retrieved 2 May 2023.
  5. "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. November 28, 1932. Archived (PDF) from the original on January 29, 2018. Retrieved 2 May 2023.
  6. "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. January 18, 1935. Archived (PDF) from the original on October 20, 2017. Retrieved 2 May 2023.
  7. "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. September 25, 1939. Archived (PDF) from the original on February 23, 2018. Retrieved 2 May 2023.
  8. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1792". Highway Designation Files. Texas Department of Transportation. Retrieved January 30, 2018.
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