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


State highway loops in Texas are owned and maintained by the Texas Department of Transportation.

Loop 401

Loop 401 was located in Scurry County. It was designated on August 31, 1964, when US 84 was bypassed around Snyder. The route was signed as a business route of US 84. On June 21, 1990, Loop 401 was cancelled and redesignated Bus. US 84.

Loop 402

Loop 402 was designated on December 18, 1964, along the old routing of US 80 through Big Spring. The route was signed as US 80 Business rather than Loop 402. On June 21, 1990, Loop 402 was cancelled and redesignated as Business I-20-G.

Loop 403

Loop 403 is located in Parmer County. It runs from US 84 northwest of Lariat to US 84 southeast of Lariat.
Loop 403 was designated on January 26, 1965, on the current route along an old routing of US 84.

Loop 404

Loop 404 is located in Wilbarger County. It runs from US 287, west of Oklaunion, to another point on US 287 southeast of Oklaunion.
Loop 404 was designated on January 26, 1965, on its current route. It is a former alignment of US 287.
;Junction list

Loop 405

Loop 405 (1965)

The first use of the Loop 405 designation was in McLennan County, from US 84, west along Valley Mills Drive and Bosque Boulevard to SH 6. Loop 405 was cancelled on November 12, 1965, and replaced by Spur 396.

Loop 405 (1967)

The next use of the Loop 405 designation was in Walker County, from SH 19 northeast of Huntsville southward to I-45. Loop 405 was cancelled on May 21, 1979, and became a portion of SH 19.

Loop 406

Loop 406 was designated on April 1, 1965, from then-new US 90 north along old US 90 across Devils River to US 90. On October 27, 1967, the section from northwest of US 90 to a point northwest was removed altogether, the section from the southeast junction with US 90 to a point northwest was transferred to Spur 454 and the remainder was changed to Spur 406.

Loop 409

Loop 409 was designated on April 1, 1965, along the old route of SH 35 through Alvin. The route was signed as SH 35 Business rather than Loop 409. On June 21, 1990, Loop 409 was cancelled and redesignated as Bus. SH 35.

Loop 410

Loop 410 is a designation that has been used twice. No highway currently uses the Loop 410 designation.

Loop 410 (1960)

The first use of the Loop 410 designation was in Bexar County, from I-10 in northern San Antonio east to I-35 near Fratt, as a renumbering of a section of Loop 13. Loop 410 was cancelled on July 31, 1969, and transferred to I-410.

Loop 410 (1971)

The next use of the Loop 410 designation was in Harris County as a business loop of SH 146 through La Porte. The route was signed as SH 146 Business rather than Loop 410. On July 28, 1977, the section along Avenue J from SH 146 to Broadway was cancelled and Loop 410 was rerouted on a new route to SH 146, replacing a portion of Spur 501 and all of Spur 498. This was also signed as SH 146 Business. Loop 410 was cancelled on June 21, 1990, and transferred to Bus. SH 146.

Loop 411

Loop 411 was the designation of the former route of US 87 through Stockdale. It is now Bus. US 87.

Loop 415

Loop 415 was designated on September 1, 1965, from US 77/US 83 in Brownsville along an old routing of US 77/US 83 to the Gateway Bridge at Elizabeth and 14th Streets. The route was signed as US 77/US 83 Business rather than Loop 415. On June 21, 1990, Loop 415 was cancelled and transferred to Bus. US 77.

Loop 416

Loop 416 was located in Hudspeth County. It was the former alignment of US 80 through Sierra Blanca. It is now Business I-10.

Loop 418

Loop 418 was located in Georgetown. It was redesignated Business I-35, portions of which are now Spur 26 and Spur 158.

Loop 419

Loop 419 (1965)

The first use of the Loop 419 designation was in Titus County as a loop off US 271 in Mount Pleasant. The route was signed as US 271 Business rather than Loop 419. On June 21, 1990, Loop 419 was cancelled and transferred to Bus. US 271.

Loop 419 (2007)

The next use of the Loop 419 designation was in Brazoria County as a loop off FM 524 along the old route of SH 35 through Old Ocean. On May 30, 2013, the section from FM 524 to CR 374 was returned to Brazoria County and the remainder was changed to Spur 419.

Loop 420

Loop 420 was located in Laredo. It was redesignated Bus. US 83, which is now Business I-35.

Loop 424

Loop 424 is located in San Jacinto County. The highway was designated in 1966 along the old route of US 59 through Shepherd.
;Junction list

Loop 425

Loop 425 was designated on January 19, 1966, as a loop off I-20 in Baird along an old routing of US 80. On June 21, 1990, Loop 425 was cancelled and transferred to Business I-20-T.

Loop 426

Loop 426 was designated on January 19, 1966, as a loop off US 377 in Granbury along an old routing of US 377. On June 21, 1990, Loop 426 was cancelled and transferred to Bus. US 377.

Loop 427

Loop 427 was a business route of US 79 in Taylor. It is now designated as Bus. US 79.

Loop 428

Loop 428 was designated on January 19, 1966, as a loop off US 77 through Bishop and Kingsville along an old routing of US 77. On June 21, 1990, Loop 428 was cancelled and transferred to Bus. US 77.

Loop 429

Loop 429 is located in Grimes County, within the county seat of Anderson. Its southern terminus is at FM 1774. It runs north along Main Street, intersecting Buffington Lane in a traffic circle around the county courthouse, before continuing to its northern terminus at FM 149.
Loop 429 was designated on January 20, 1966, along the current route.

Loop 430

Loop 430 is located in Lamb County. The highway was designated in 1966 along the old route of US 84 through Littlefield.
;Junction list

Loop 431

Loop 431 was designated on May 5, 1966, as a loop off US 277 in Eagle Pass. On December 21, 1983, Loop 431 was rerouted over old US 277 along Spur 240 to US 57. Loop 431 was cancelled on June 21, 1990, and transferred to Bus. US 277.

Loop 432

Loop 432 was designated on August 4, 1966, as a loop off I-20 in Sweetwater along an old routing of US 80. The route was signed as US 80 Business rather than Loop 432. On June 21, 1990, Loop 432 was cancelled and transferred to Business I-20-M.

Loop 434

Loop 434 is located in Amarillo. It is the former route of US 87 through the northern part of the city.

Loop 436

Loop 436 was designated on August 31, 1966, as a loop off US 59 around the west side of Carthage. On October 21, 1981, the section from US 59 south to US 79/Loop 334 was transferred to US 79. The remainder of Loop 436 was cancelled on September 25, 1989, and removed from the highway system. The route is now portions of US 79 and SH 149.

Loop 438

Loop 438 is located in Winters.
Loop 438 was designated on October 3, 1966, as a loop off FM 53 along an old routing of FM 53.

Loop 439

Loop 439 was designated on October 3, 1966, as a loop off SH 289 in Prosper along an old routing of SH 289. The route was signed as SH 289 Business rather than Loop 438. On June 21, 1990, Loop 438 was cancelled and transferred to Bus. SH 289.

Loop 441

Loop 441 was located in Grayson County. It was designated on October 3, 1966, as a loop off SH 99 in Whitesboro. The route was signed as a business route of SH 99. On June 21, 1990, Loop 441 was cancelled and transferred to Bus. US 377.

Loop 442

Loop 442 is located in Tehuacana.
Loop 442 was designated on October 3, 1966, as a loop off SH 171 along an old routing of SH 171. The route was signed as SH 171 Business rather than Loop 442.

Loop 443

Loop 443 was designated on October 3, 1966, from SH 358 east to US 181 in downtown Corpus Christi along an old routing of SH 44. On June 21, 1990, Loop 443 was cancelled and transferred to Bus. SH 44.

Loop 444

Loop 444 is located in Paradise. Both of its termini are at SH 114.
Loop 444 was designated on October 3, 1966. It is a former alignment of SH 114 in Paradise.

Loop 445

Loop 445 was a loop off US 87 in Plainview. It is now Business I-27.

Loop 446

Loop 446 was designated on April 27, 1967, as a loop off SH 78 in Farmersville along an old routing of SH 78. The route was signed as SH 78 Business rather than Loop 446. On June 21, 1990, Loop 446 was cancelled and transferred to Bus. SH 78.

Loop 448

Loop 448 was designated on June 1, 1967, from US 77 north of Harlingen southeast to US 77/US 83 southeast of San Benito. The route was signed as US 77 Business rather than Loop 448. On July 31, 1969, a section of old US 77 from US 77 north of Raymondville to Spur 56 south of Raymondville was added, creating a gap. This section was also signed as US 77 Business. On September 30, 1974, a section from Spur 56 south to US 77 south of Sebestian was added, shortening the gap. Like the rest of the route, this section was signed as Bus. US 77. On June 21, 1990, Loop 448 was cancelled: the Raymondville-Sebestian section was transferred to Bus. US 77 and the Harlingen-San Benito section was transferred to Bus. US 77.

Loop 451

Loop 451 was designated on September 26, 1967, as a loop off SH 121 in Randolph along an old routing of SH 121. The route was signed as SH 121 Business rather than Loop 451. On June 21, 1990, Loop 451 was cancelled and transferred to Bus. SH 121.

Loop 452

Loop 452 was designated on April 8, 1986, in Gatesville, from SH 36 south to US 84 and from US 84 southeast to SH 36, creating a concurrency with US 84. The route was formerly a section of SH 36. On June 21, 1990, Loop 452 was cancelled and transferred to Bus. SH 36.