List of state highway spurs in Texas (400–499)

Spur 400 is located in Laredo. It runs from Arkansas Avenue along Clark Boulevard to Loop 20. Spur 400 was designated on April 1, 1986, along the current route. ==Spur 406==

Spur 406 is located in Val Verde County. It runs from US 90 to Amistad Reservoir. Spur 406 was designated on October 27, 1967, as a redesignation of Loop 406 after a small section was transferred to Spur 454 and the remainder was removed altogether. ==Spur 407==

Spur 407 was located in Corpus Christi. It ran from I-37 and Alta Loma Road to downtown Corpus Christi. Spur 407 was designated on February 26, 1965, on the current route along an old routing of SH 9; the route was signed as SH 9 Business during construction of IH 37. The road was decommissioned on February 27, 2025, as TxDOT no longer needed it. ==Spur 408==

Spur 408 is located in Dallas. It runs from I-20 to Loop 12. Spur 408 was designated on March 31, 1965, on the current route. ==Spur 412==

Spur 412 is located in Waco. It runs from SH 6 to a point east, at 503 feet above sea level near Speegleville Park. Spur 412 was designated on March 31, 1965, on the current route along an old routing of SH 6. ==Spur 413==

Spur 413 is located in Sebastian. It runs from Bus. US 77 to I-69E/US 77. Spur 413 was designated on July 30, 1965, on the current route. ==Spur 414==

Spur 414 is located in McElroy. It runs from US 96 south of Pineland to Sam Rayburn Reservoir. Spur 414 was designated on July 29, 1965, on the current route along an old routing of US 96. ==Spur 417==

Spur 417 was designated on October 15, 1965, from US 287 (now US 70/US 287) northwest of Vernon to US 70 (now Loop 488) in Vernon along an old routing of US 287. The route was signed as US 287 Business rather than Spur 417. On June 21, 1990, Spur 417 was cancelled and transferred to Bus. US 287. ==Spur 419==

Spur 419 is located in Old Ocean. It runs from CR 374 to SH 35. Spur 419 was designated on May 30, 2013, as a redesignation of Loop 419 when a section was returned to Brazoria County. ==Spur 421==

Spur 421 is located in San Antonio. It runs from I-410/SH 16 to I-10/US 87. Spur 421 was designated on November 16, 1965, on the current route as a replacement of SH 16, which was rerouted along I-410. ==Spur 422==

Spur 422 is located in San Antonio. It runs from I-35 in southern San Antonio to I-410/SH 16. Spur 422 was designated on November 16, 1965, on the current route as a replacement of SH 16, which was rerouted along I-410. ==Spur 423==

Spur 423 is located in Mount Vernon. It runs from US 67 to I-30. Spur 423 was designated on November 22, 1965, on the current route as a replacement of a section of FM 899. ==Spur 425==

Spur 425 is located in Brownsville. It runs from a Border Safety Inspection Facility at the Mexico border eastward to I-69E/US 77/US 83. Spur 425 was designated on June 24, 2010, on the current route. ==Spur 433==

Spur 433 is located in Donna. It runs from US 83 to US 83 Business (former Loop 374). Spur 433 was designated on August 5, 1966, on the current route. ==Spur 435==

Spur 435 was designated on August 31, 1966, as a spur off Park Road 20 to the marina in Eisenhower State Park. Spur 435 was cancelled and transferred to PR 20. ==Spur 437==

Spur 437 is located in Ennis. It runs from SH 34 along Clay Street to US 287. Spur 437 was designated on January 3, 1967, on the current route. Spur 437 (1966) The original Spur 437 was in Ennis along Preston Street instead of Clay Street. It was formed on October 3, 1966, and was cancelled on January 3, 1967. ==Spur 440==

Spur 440 (1966) The first use of the Spur 440 designation was in Ellis County as a spur of SH 34 in Ennis. Spur 440 was cancelled in 1972. Spur 440 (1972) The next use of the Spur 440 designation was in Wise County. It is now Bus. SH 114. ==Spur 447==

Spur 447 is located in Wichita Falls. It runs from US 82/US 287 to SH 240. Spur 447 was designated on April 27, 1967, on the current route. ==Spur 449==

Spur 449 is located in Harrison County. It runs from SH 43 to FM 134 at Karnack. Spur 449 was designated on June 1, 1967, on the current route as a replacement of section of SH 43. ==Spur 450==

Spur 450 is located in Odessa. It runs from SH 302/Loop 338 to US 385. Spur 450 was designated on September 26, 1967, on the current route along an old routing of SH 302. ==Spur 452==