State Highway 123 (SH 123) is a north–south state highway in Texas, United States, that connects U.S Route 181 (US 181) in Karnes City with Interstate 35 (I-35) in San Marcos. The route was initially proposed in 1927 and has had minimal changes to its routing since then.

State Highway 123 marker
State Highway 123
Map
SH 123; mainline in red, business routes in blue
Route information
Maintained by TxDOT
Length71.2 mi[1] (114.6 km)
Existedby 1933[1]–present
Major junctions
South end
US 181 / Bus. US 181 / SH 80 in Karnes City
Major intersections
North end I-35 / Loop 82 in San Marcos
Location
CountryUnited States
StateTexas
CountiesKarnes, Wilson, Guadalupe, and Hays
Highway system
SH 122 SH 124

Route description

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SH 123 begins at an intersection with US 181 just south of Karnes City and proceeds northward along the town's eastern edge. The route intersects the Business Route of US 181 and Texas State Highway 80 as it passes through town. The road continues north through farmlands before reaching an intersection with US Route 87 in Stockdale. The route continues north through ranchlands until Seguin. Reaching Seguin, Texas State Highway 46 begins, peeling off to the northwest toward New Braunfels. SH 123 continues around the eastern edge of Seguin, where it is known locally as "the Bypass", and there it intersects US 90 Alternate, US 90, and Interstate 10. The highway continues north, reaching its northern terminus at Interstate 35 in San Marcos.

History

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The route was initially proposed on April 12, 1927 from Stockdale to San Marcos with a proposed extension south to Karnes City.[2] On September 21, 1931, it was rerouted to end in Floresville.[3] On August 4, 1932, it was restored to Karnes City, and the old route was renumbered as SH 168.[4] On November 6, 1934, it was rerouted to Yorktown.[5] On February 16, 1935, its south end was changed back to Karnes City.[6] On November 18, 1938, SH 123 Loop was designated in Karnes City.[7] On September 26, 1939, SH 123 Loop was renumbered as Loop 17. Paving was completed in the mid-1940s.

Major intersections

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CountyLocationmikmDestinationsNotes
Karnes0.00.0  
 
  US 181 / Bus. US 181 end / SH 80 end – Kenedy, Corpus Christi, San Antonio
Southern terminus:
southern end of US 181 Bus. / SH 80 concurrency
Karnes City1.42.3 
 
 
Bus. US 181 north
Northern end of US 181 Bus. concurrency
1.93.1 
 
SH 80 north – Helena, Gillett
Northern end of SH 80 concurrency
2.54.0 
 
 
Bus. SH 123 south – Karnes City
6.310.1 
 
FM 81 east – Panna Maria
Southern end of FM 81 concurrency
6.510.5 
 
FM 81 west – Hobson
Northern end of FM 81 concurrency
Pawelekville13.421.6  FM 887 – Falls City, Gillett
Wilson17.428.0 
 
FM 541 west – Kosciusko, Poth
20.933.6  FM 1347 – Kosciusko, Denhawken
23.938.5 
 
FM 537 west – Floresville
Stockdale25.4–
25.5
40.9–
41.0
   
 
US 87 / SH 97 to SH 119 – Floresville, San Antonio, Nixon
interchange
26.342.3 
 
Bus. US 87 (Main Street) – Stockdale Business District, Pandora, Nixon
28.646.0 
 
 
 
FM 3335 east to FM 1107
35.957.8 
 
FM 1681 east – Nixon
Guadalupe45.673.4 
 
FM 477 east
Seguin46.474.7 
 
 
 
 
SH 46 north / Bus. SH 123 north – Seguin, New Braunfels
49.379.3  
 
FM 466 (Eastwood Drive) to SH 80 – Seguin
49.780.0 
 
US 90 Alt. (Court Street) – Seguin, Gonzales, Texas Lutheran University, Sebastopol Historical Park
50.981.9  US 90 – Seguin, Luling
51.9–
52.0
83.5–
83.7
  I-10 – San Antonio, HoustonI-10 exit 610
53.586.1 
 
 
Bus. SH 123 south – Seguin
53.786.4 
 
FM 20 east – Fentress
Geronimo57.392.2 
 
FM 2623 east – Fentress
59.495.6 
 
FM 758 west – Barbarosa, New Braunfels Municipal Airport, Central Texas Technology Center
60.497.2 
 
FM 1339 east – Staples
Zorn62.2100.1 
 
FM 1101 west – New Braunfels
64.5103.8 
 
FM 1979 east – Martindale
66.1106.4 
 
FM 1978 east – Redwood
HaysSan Marcos68.5–
68.6
110.2–
110.4
 
 
FM 110 west
69.6112.0 
 
RM 12 north (Wonderworld Drive)
70.9114.1 
 
FM 621 east – Staples State Fish Hatchery
71.1–
71.2
114.4–
114.6
   I-35 / Loop 82 – San Antonio, AustinNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Business routes

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The route has two business segments: Business 123-B (largely on Austin Street) through historic downtown Seguin and Business 123-D in Karnes City.

See also

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References

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  1. ^ a b Transportation Planning and Programming Division (n.d.). "State Highway No. 123". Highway Designation Files. Texas Department of Transportation. Retrieved 2010-06-15.
  2. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. April 11, 1927. Archived (PDF) from the original on January 22, 2018. Retrieved 4 May 2023.
  3. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. September 21, 1931. Archived (PDF) from the original on January 29, 2018. Retrieved 4 May 2023.
  4. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. August 2, 1932. Archived (PDF) from the original on January 29, 2018. Retrieved 4 May 2023.
  5. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. November 26, 1934. Archived (PDF) from the original on February 6, 2018. Retrieved 4 May 2023.
  6. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. February 11, 1935. Archived (PDF) from the original on February 6, 2018. Retrieved 4 May 2023.
  7. ^ "Minutes" (PDF). publicdocs.txdot.gov. Texas Department of Transportation. November 18, 1938. Archived (PDF) from the original on February 23, 2018. Retrieved 4 May 2023.
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  Media related to Texas State Highway 123 at Wikimedia Commons