List of state highway loops in Texas (300–399)
State highway loops in Texas are owned and maintained by the Texas Department of Transportation.
Loop 300
Loop 300 was a proposed route in Snyder. It was designated on February 23, 1956, from US 180 west of the city, around its west and south sides, to US 84 southeast of it. The route was never built, and the designation was cancelled on October 1, 1968.Loop 301
Loop 301 is located in Sulphur Springs. It runs from the junction of SH 19 and SH 154 to I-30/US 67.Loop 301 was designated on February 23, 1956, from US 67 and SH 19 in west Sulphur Springs, northward to SH 154. On September 21, 1965, it was extended southeast to I-30. On April 27, 1967, the section from SH 154 southwest to Loop 313 was transferred to SH 19.
Loop 302
Loop 302 was located in Greenville. It became Bus. US 67, which is now Spur 302.Loop 304
Loop 304 is a beltway within Crockett, the county seat of Houston County. It is in length. It was established in on March 28, 1956. Nearly all of the loop is two lanes wide, and provides access for long distance travelers and trucks to bypass the downtown core. Populated areas also dot outside the loop, but have less population density.;Junction list
Loop 305
Loop 305 is located in La Pryor.Loop 305 was designated on March 28, 1956, as a loop off of US 83 when it was rerouted.
Loop 305 begins at the intersection of US 83 and US 57 near the town's western boundary. Loop 305 begins running concurrent with US 57 before turning off onto North Pryor Avenue. The highway continues along North Pryor Avenue until ending at an intersection with US 83 near the town's northern boundary.
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Loop 306
Loop 306 is a state loop that encircles much of San Angelo. Loop 306 begins on the north side of San Angelo, at the US 67/277 interchange, and continues south on the eastern edge of town. The highway multiplexes with US 87 while being routed west. The multiplex ends at the US 87/277/Loop 306 interchange, with Loop 306 routed northwest. Loop 306 ends at the Bus. US 67 overpass, however the freeway continues and is signed as US 67, Houston Harte Expressway; named after the San Angelo-native publishing magnate. The route is often referred to locally as "the Loop" or "Loop 306", despite the terminus of Loop 306 at Sherwood Way. TxDOT upgraded portions of Loop 306 to expand it from a two-lane road to a four-lane divided highway. From the US 67/277 interchange, Loop 306 continues as a four-lane divided highway all the way to US 87. The upgrades included adding two overpasses and improvements to a divided highway.Loop 306 was designated on October 24, 1956. On July 30, 1976, the section from US 67 west and southwest to US 67 was transferred to rerouted US 67.
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Loop 307
Loop 307 was a proposed route in Teague. It was designated on February 23, 1956, from US 84 north of Teague, east and south to SH 179, east of Teague. On October 21, 1959, part of the route was transferred to US 84 when that highway was rerouted. On November 25, 1975, FM 553 was designated on the remaining route, but Loop 307 was not cancelled until April 30, 2004.Loop 308
Loop 308 is located in Briggs.Loop 308 was designated on June 22, 1956, as a loop off of US 183 when it was rerouted.
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Loop 310
Loop 310 was located in Carrollton. It was designated on February 23, 1956, as a loop off US 77. Loop 310 was cancelled on November 21, 1991, and returned to the city of Carrollton.Loop 311
Loop 311 was located in Kilgore.Loop 311 was designated on August 1, 1956, from SH 259 in downtown Kilgore west to SH 135 near the west edge of Kilgore. The route was signed as Bus. SH 135 rather than Loop 311. On June 14, 1968, Loop 311 was cancelled and removed from the highway system due to the completion of the rerouting of SH 42.
Loop 313
Loop 313 was located in Sulphur Springs. It ran along a former alignment of US 67. It is now Bus. US 67.Loop 315
Loop 315 was located in Greenville.Loop 315 was designated on November 21, 1956, from US 69 near Peniel south to US 67 southwest of Greenville. On November 30, 1961, the road was extended east over old US 67 to I-30, and southeast to US 69 on October 13, 1971. On May 21, 1979, Loop 315 was routed over US 69 while the old route of Loop 315 was transferred to US 69. Loop 315 was cancelled on June 21, 1990, and transferred to Bus. US 69.
Loop 316
Loop 316 was located in Loraine. It is now Business I-20.Loop 318
Loop 318 (1957)
The first use of Loop 318 was in Callahan County, from US 380 west and north to FM 576, then east along FM 576 to US 380. Loop 318 was cancelled three months later and transferred to FM 880 and FM Spur 880.Loop 318 (1960)
The second use of the Loop 318 designation was in Washington County, as a loop off US 290 in Brenham. This was the former routing of US 290 before it was rerouted on top of a section of Loop 283. On February 28, 1973, the section from US 290 west of Brenham to Market Street was transferred to SH 105. The remainder of Loop 318 was cancelled on June 21, 1990, and transferred to Bus. US 290.Loop 319
Loop 319 was located in Trent. It is now Business I-20.Loop 320
Loop 320 was located in Tye. It is now Business I-20.Loop 321
Loop 321 is located in Wilson County. It is the former route of US 87 through La Vernia.Loop 322
Loop 322 is a loop route in the city of Abilene in the U.S. state of Texas. It is located in Taylor County.Loop 323
Loop 323 is a state highway loop in Texas in the United States. It is a highway circling the city of Tyler in Smith County.Loop 328
Loop 328 is located in Carey.Loop 328 was designated on October 30, 1957, as a loop off of US 287 when it was rerouted.
Loop 329
Loop 329 was located in Columbus.Loop 329 was designated on February 16, 1982, from SH 71, northwest of Columbus, southeast and south along Fannin Street to I-10. This was formerly a portion of SH 71 before it was rerouted. On June 21, 1990, Loop 329 was cancelled and transferred to Bus. SH 71.
Loop 332
Loop 332 was located in Liberty Hill. Its western terminus was at SH 29. The route headed southeast on a two-lane undivided road that became Main Street. It crossed RM 1869 before turning east at CR 279. Loop 332 crossed a railroad line that is owned by the Capital Metropolitan Transportation Authority and used by the Austin Western Railroad. Loop 332's eastern terminus was at another intersection with SH 29.Loop 332 was designated on January 22, 1958, as a loop off SH 29 in Liberty Hill. On January 31, 2019, Loop 332 was cancelled and returned to the city of Liberty Hill by request of the city council.
Loop 333
Loop 333 was located in Westbrook. It is now Business I-20.Loop 334
Loop 334 (1958)
The first use of the Loop 334 designation was in Bexar County, from FM 1604 and I-10 west and south to US 90. On August 29, 1958, the road was extended southwest to FM 2173 near Macdona. Loop 334 was cancelled on August 7, 1959, and transferred to FM 1604.Loop 334 (1981)
The next use of the Loop 334 designation was in Panola County as a loop off US 79 in Carthage. The same day a break in the route was added at Loop 455. The route was signed as US 79 Business rather than Loop 334. Loop 334 was cancelled on June 21, 1990, and transferred to Bus. US 79.Loop 335
Loop 335 encircles Amarillo.Loop 335 was designated on January 18, 1960, from US 60/US 87 south of Amarillo east and north to US 287 east of Amarillo. On January 31, 1961, the road was extended north and west to US 87/US 287 and west and north to US 66 on July 30, 1965. On June 21, 1977, the road was extended to new US 87/US 287, replacing a section of FM 1719. On July 24, 1984, the road was extended north, northeast and east to US 287, replacing a second section of FM 1719 and completing the loop around Amarillo. On April 21, 2018, the road was rerouted along FM 2186 with the old route transferred to FM 2590, although this will not be effective until construction is complete on this section.
Loop 336
Loop 336, also known as the Veterans Memorial Highway, encircles the city of Conroe. Through trucks traveling east and west are directed onto this loop, as they are prohibited on SH 105 inside Conroe.Loop 336 was designated on September 27, 1960, as a loop off SH 105 in Conroe. On November 20, 1984, the road was extended around the eastern and southern sides of Conroe to FM 2854 west of Conroe. On February 23, 1989, the road was extended north from FM 2854 to SH 105, replacing FM 3374 and completing the loop around Conroe.
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Loop 337
Loop 337 is located in New Braunfels.Loop 337 was designated on June 1, 1960, from I-35 southwest of New Braunfels north, east and south to FM 25 at then-US 81 east of the Guadalupe River. On February 26, 1972, the road was extended to I-35, replacing a section of FM 25. On May 14, 1990, the route description was modified to show that SH 46 was rerouted concurrent with Loop 337.
Loop 338
Texas State Highway Loop 338 encircles Odessa. Unlike Loop 250 in neighboring Midland, Loop 338 is not a freeway at any point. Instead, it runs as a divided expressway, divided highway and undivided road.Loop 338 was designated on September 26, 1960, from US 80, west of Odessa, north, east, and south around Odessa to then-proposed I-20. On June 30, 1961, the section from US 80 to I-20 was transferred to FM 1357, while Loop 338 was rerouted over a section of FM 1357 from US 80 to a point north. On April 3, 1964, the road was extended to I-20 east of Odessa, replacing FM 1357. On September 30, 1964, the road was extended south to I-20. On September 26, 1967, the section from I-20 to SH 302 was transferred to SH 302. On September 27, 1985, the road was extended southeast to US 385, creating a concurrency with SH 302. On February 25, 1992, the road was extended west and north to I-20, completing its current route.
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