State Highway 46 (SH 46) is a state highway in the U.S. state of Texas that runs from SH 16 east of Bandera to the intersection of SH 123 and SH 123 Business just south of Seguin.
History
50px|left SH 46 was originally designated on October 20, 1919 as a route from New Braunfels north to Johnson City. On July 13, 1925, the route had been shortened, with the section north of Spring Branch transferred to SH 108. This alignment of SH 46 only consisted of the portion from US 281 to US 81 in New Braunfels. On July 16, 1928, it was extended to Seguin. On July 15, 1935, the section from New Braunfels to Seguin was cancelled. On October 26, 1967, the highway was relocated in New Braunfels to the east along the alignment of Loop 337, but still had an eastern terminus at US 81. On June 21, 1990, the designation of this segment was officially changed to Business 46. On October 28, 1960, SH 46 was signed, but not designated, over Farm to Market Road 25 from I-35 to US 90 and Ranch to Market Road 475 from US 281 to SH 16. On June 30, 1961, the section of FM 25 from FM 78 to US 90 became part of the new Spur 351. On February 26, 1968, SH 46 was officially extended to the south from US 81 to I-35, replacing part of FM 25. On September 28, 1988, the highway was officially extended at both ends, extending the eastern end south replacing FM 25 from I-35 to FM 78 and then replacing part of Spur 351 from FM 78 to I-10 in Seguin. On May 14, 1990, the highway was extended to its current alignment when it was extended south from I-10 to SH 123 replacing the remainder of Spur 351. Construction started in fall 2017 and also included reconstruction of existing bridges and interchanges. Construction was completed in May 2021 at an estimated cost of $42.3 million.
Route description
thumb|left|Texas State Highway 46 west of its intersection with Loop 337
SH 46 begins at its western terminus at SH 16, east of Bandera in Bandera County.