| Dwight D. Eisenhower National System of Interstate and Defense Highways | |
|---|---|
Highway markers for Interstate 10, Interstate 410, and Interstate 20 Business loop | |
Interstate Highways highlighted in red | |
| System information | |
| Maintained byTxDOT | |
| Length | 3,274.7 mi (5,270.1 km) |
| Formed | June 29, 1956 (1956-06-29)[1] |
| Highway names | |
| Interstates | Interstate X (I-X) Interstate Highway X (IH X) |
| US Highways | U.S. Highway X (US X) |
| State | State Highway X (SH X) |
| Loops: | Loop X |
| Spurs: | Spur X |
| Recreational: | Recreational Road X (RE X) |
| Farm or Ranch to Market Roads: | Farm to Market Road X (FM X) Ranch to Market Road X (RM X) |
| Park Roads: | Park Road X (PR X) |
| System links | |
TheInterstate Highways in Texas are all owned and maintained by the U.S. state ofTexas.[2] TheTexas Department of Transportation (TxDOT) is the agency responsible for the day-to-day maintenance and operations of theInterstate Highways in Texas. The Interstate Highway System in Texas covers 3,239.7 miles (5,213.8 km) and consists of twelveprimary routes, sevenauxiliary routes andInterstate 35 (I-35) which is split into two branches,I-35E andI-35W, that provide access to bothFort Worth andDallas. The longest segment of Interstate Highway in Texas isI-10 at 878.6 miles (1,414.0 km); the shortest isI-110 at 0.9 miles (1.4 km).
The construction of the Interstate Highway System in Texas began well before these routes were designated as Interstate Highways. A 50-mile (80 km) stretch ofI-45 betweenGalveston andHouston was opened in 1951, eight years before it was designated I-45. It was also the first urban expressway in Texas. In 1962, 43 miles (69 km) of I-35 opened inBexar County, the first section of Interstate Highway to open from county line to county line in a large metropolitan area.[3] Portions of I-10 west ofSan Antonio took much longer to complete due to the vast open spaces and lack of nearby labor. The majority of the construction of this section of I-10 occurred in the 1970s and 1980s and was complete by the early 1990s. The section east of San Antonio was completed 20 years earlier in 1972.[4] The opening of a 6-mile (10 km) section ofI-27 in 1992 completed the Interstate Highway System in Texas.[5]
Planning is ongoing for a proposed extension ofI-69 southward from its original terminus inIndiana through Texas to theUnited States–Mexico border.[6] If complete as planned, I-69 will extend about 650 miles (1,050 km) across Texas, from theLouisiana state line in theTexarkana–Shreveport area to South Texas.[7] The first 6.2-mile (10.0 km) portion was approved in 2011, with signage posted December 6, 2011.
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| 46.8[8] | 75.3 | US 83/Bus. US 83 inLa Joya | I-69E/US 77/US 83 inHarlingen | 02013-05-302013[8] | current | Lowest numbered route in the system; IntersectsI-69C inPharr[9][10][11] | ||
| 877.455[12] | 1,412.127 | I-10/US 85/US 180 atNew Mexico state line inAnthony | I-10/US 90 atLouisiana state line inOrange | 01959-10-011959[12] | current | IntersectsI-110 inEl Paso;[13]I-20 betweenKent andBalmorhea;[14][15]I-35,I-37, andI-410 inSan Antonio;[16] andI-45,I-69, andI-610 inHouston[17] | ||
| 25.90 | 41.68 | US 190/SH 9 inCopperas Cove | I-35/US 190 nearBelton | 02017-01-262017[18] | current | Known as the Fourteenth Amendment Highway;[19] to be extended west along US 190 to I-10 and I-20 and east to Louisiana[20] | ||
| 634.723[21] | 1,021.488 | I-10 betweenKent andToyah | I-20 atLouisiana state line east ofWaskom | 01959-10-011959[21] | current | IntersectsI-30,I-35W, andI-820 inFort Worth;[22]I-35E,I-45, andI-635 inDallas;[23] and futureI-369 in Marshall[24] | ||
| 124.182[25] | 199.852 | US 87/Loop 289 inLubbock | I‑40/US 60/US 87/US 287 inAmarillo | 01968-12-241968[25] | current | Extensions toLaredo and New Mexico signed into law on March 15, 2022[26] | ||
| 223.404[27] | 359.534 | I-20 inFort Worth | I-30/US 59/US 71 atArkansas state line inTexarkana | 01959-10-011959[27] | current | IntersectsI-35W andI-820 in Fort Worth;[22]I-35E,I-45,I-345, andI-635 inDallas;[23] andI-369 in Texarkana[28] | ||
| 407.195[29] | 655.317 | I-35E &I-35W inDenton (Northern section) Fed. 85 atJuárez–Lincoln International Bridge inLaredo (Southern section) | I-35/US 77 atOklahoma state line north ofGainesville (Northern section) I-35E &I-35W inHillsboro (Southern section) | 01959-10-011959[29] | current | IntersectsI-69W in Laredo[30] thenI-10,I-37, andI-410 inSan Antonio[16][31] before branching atHillsboro intoI-35E andI-35W[32] throughDallas andFort Worth reuniting inDenton[33] | ||
| 96.657[34] | 155.554 | I-35 &I-35W inHillsboro | I-35 & I-35W inDenton | 01959-10-011959[34] | current | Eastern branch of I-35 throughDallas where it intersectsI-20,I-30, andI-635[23][35] | ||
| 85.283[36] | 137.250 | I-35 &I-35E inHillsboro | I-35 & I-35E inDenton | 01959-10-011959[36] | current | Western branch of I-35 throughFort Worth where it intersectsI-20,I-30, andI-820[22] | ||
| 142.787[37] | 229.793 | US 181/SH 35 inCorpus Christi | I-35/US 281 inSan Antonio | 01959-10-011959[37] | current | IntersectsI-69E in Corpus Christi;[38] futureI-69W east of George West; and bothI-10 andI-410 in San Antonio[16][31] | ||
| 177.139[39] | 285.078 | I-40 atNew Mexico state line inGlenrio | I-40 atOklahoma state line east ofShamrock | 01959-10-011959[39] | current | IntersectsI-27 inAmarillo[40] | ||
| 15.398[41] | 24.781 | US 277/US 281/US 287 inWichita Falls | I-44/US 277/US 281 atOklahoma state line north ofBurkburnett | 01982-06-291982[41] | current | |||
| 284.913[42] | 458.523 | SH 87 inGalveston | I-30,I-345,US 67 inDallas | 01959-10-011959[42] | current | IntersectsI-10,I-69, andI-610 inHouston;[17] andI-20 in Dallas[23] | ||
| 2 | 3.2 | I-49/US 59/US 71 atArkansas state line north ofTexarkana | I-49 at Arkansas state line north of Texarkana | proposed | — | Links two Arkansas I-49 segments[43] | ||
| 75.3[44] | 121.2 | US 59/Spur 529 inRosenberg | US 59 nearCleveland | 02011-10-272011[44][45] | current | IntersectsI-10,I-45, andI-610 inHouston; The future I-69 will extend fromI-69E/I-69W merger south ofVictoria along US 59 toTenaha intersectingI-369 before followingUS 84 toI-69 atLouisiana state line east ofJoaquin[46] | ||
| 18[47] | 29 | I-2/US 83/US 281 inPharr | US 281/FM 490 inEdinburg | 02013-05-302013[47] | current | The future I-69C will follow US 281 ending atI-69W inGeorge West[46] | ||
| 81[48] | 130 | Fed. 101/Fed. 180 atVeterans International Bridge inBrownsville US 77 inKingsville | US 77 north ofRaymondville I-37/US 77 inCorpus Christi | 02013-05-302013[48] | current | IntersectsI-169 inOlmito andI-2 inHarlingen; The future I-69E will follow US 77 toI-69/I-69W south ofVictoria[46] | ||
| 1.4[49] | 2.3 | Fed. 85D atWorld Trade International Bridge inLaredo | US 59/Loop 20 in Laredo | 02014-06-262014[49] | current | The future I-69W will follow US 59 toI-69/I-69E south ofVictoria intersectingI-69C inGeorge West andI-37 east of George West[46] | ||
| ||||||||
| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| 0.891[50] | 1.434 | Fed. 45 atBridge of the Americas inEl Paso | I-10/US 54/US 180 in El Paso | 01967-03-281967[50] | current | Partially along US 54[13] | ||
| 1.5 | 2.4 | Port of Brownsville | I-69E/US 77/US 83 inOlmito | 02015-05-152015 | current | Frontage roads opened and signed asSH 550 from I-69E/US 77/US 83 to FM 3248 in 2011 and from FM 3248 to the Port of Brownsville in 2013; main lanes opened and co-signed with SH 550 from I-69E/US 77/US 83 to Old Alice Road in 2015, main lanes currently under construction from Old Alice Road to the Port of Brownsville and should be completed by 2016, it will be a toll route once fully completed | ||
| 1.400[51] | 2.253 | I-30/I-45/US 67 inDallas | US 75/Spur 366 in Dallas | 01964-10-151964[51] | current | Unsigned | ||
| 3.5[52] | 5.6 | US 59/SH 93/Loop 151 inTexarkana | I-30/US 59 in Texarkana | 02013-05-302013[52] | current | Proposed extension along US 59 toI-69 inTenaha; intersectsI-20[24] | ||
| 49.488[53] | 79.643 | Beltway aroundSan Antonio | 01959-10-011959[53] | current | IntersectsI-10,I-35, andI-37[16][31] | |||
| 37.972[54] | 61.110 | Beltway aroundHouston | 01959-10-011959[54] | current | IntersectsI-10,I-45, andI-69[17] | |||
| 36.999[55] | 59.544 | I-20 inBalch Springs | SH 121 inGrapevine | 01959-10-011959[55] | current | PartialDallasbeltway; intersectsI-30, andI-35E[23][35] | ||
| 35.173[56] | 56.605 | I-20 inFort Worth | I-20/US 287 in Fort Worth | 01959-10-011959[56] | current | Partial Fort Worthbeltway; intersectsI-30 andI-35W[22] | ||
| Number | Length (mi)[a] | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes | |
|---|---|---|---|---|---|---|---|---|
| 2.747[57] | 4.421 | I-10 inSierra Blanca | I-10 in Sierra Blanca | 01990-06-211990[57] | current | FormerlyLoop 416 signed asBus. US 80[58] | ||
| 2.881[59] | 4.637 | I-10 inVan Horn | I-10 in Van Horn | 01990-06-211990[59] | current | FormerlyLoop 519 signed asBus. US 80[60] | ||
| 2.000[61] | 3.219 | I-10/FM 2903 north ofBalmorhea | I-10/SH 17 east of Balmorhea | 01991-11-211991[61] | current | Formerly part ofUS 290 and FM 2903[61] | ||
| 1.398[62] | 2.250 | I-10/US 67 inFort Stockton | I-10/US 67/US 385 in Fort Stockton | 01991-01-211991[62] | current | Formerly part ofUS 290[62] | ||
| 14.042[63] | 22.598 | I-20 west ofPecos | I-20 east ofBarstow | 01991-08-281991[63] | current | Formerly part ofUS 80[63] | ||
| 8.223[64] | 13.234 | I-20 west ofMonahans | I-20 in Monahans | 01991-08-281991[64] | current | Formerly part ofUS 80[64] | ||
| 31.761[65] | 51.114 | I-20 inWest Odessa | I-20 east ofMidland | 01991-08-281991[65] | current | Formerly part ofUS 80[65] | ||
| 4.687[66] | 7.543 | I-20 west ofStanton | I-20 east of Stanton | 01995-03-301995[66] | current | FormerlyLoop 214 preceded byUS 80[67] | ||
| 5.609[68] | 9.027 | I-20 west ofBig Spring | I-20 in Big Spring | 01990-06-211990[68] | current | FormerlyLoop 402 signed asBus. US 80[69] | ||
| 1.069[70] | 1.720 | I-20/FM 670 west ofWestbrook | I-20 in Westbrook | 01990-06-211990[70] | current | FormerlyLoop 333 preceded byUS 80[71] | ||
| 5.926[72] | 9.537 | I-20 west ofColorado City | I-20 east of Colorado City | 01990-06-211990[72] | current | FormerlyLoop 377 signed asBus. US 80[73] | ||
| 1.633[74] | 2.628 | I-20 west ofLoraine | I-20 in Loraine | 01990-06-211990[74] | current | FormerlyLoop 316 preceded byUS 80[75] | ||
| 1.644[76] | 2.646 | I-20 west ofRoscoe | Bus. US 84/FM 608 in Roscoe | 01990-06-211990[76] | current | FormerlyLoop 237 preceded byUS 80[77] | ||
| 6.448[78] | 10.377 | I-20/US 84 west ofSweetwater | I-20/US 84/SH 70 in Sweetwater | 01990-06-211990[78] | current | FormerlyLoop 432 signed asBus. US 80[79] | ||
| 2.076[80] | 3.341 | I-20/US 84 west ofTrent | I-20/US 84 east of Trent | 01990-06-211990[80] | current | FormerlyLoop 319 preceded byUS 80[81] | ||
| 2.786[82] | 4.484 | I-20/US 84 west ofMerkel | I-20/US 84/FM 1235 east of Merkel | 01990-06-211990[82] | current | FormerlyLoop 39 preceded byUS 80[83] | ||
| 1.661[84] | 2.673 | I-20/US 84 inTye | I-20/US 84 in Tye | 01990-06-211990[84] | current | FormerlyLoop 320 preceded byUS 80[85] | ||
| 8.466[86] | 13.625 | I-20/US 84 inTye | I-20 inAbilene | 01990-06-211990[86] | current | FormerlyLoop 355 signed asBus. US 80[87] | ||
| 2.826[88] | 4.548 | I-20/FM 2047 west ofBaird | I-20 east of Baird | 01990-06-211990[88] | current | FormerlyLoop 425 preceded byUS 80[89] | ||
| 1.168[90] | 1.880 | I-27/US 87 inHale Center | I-27/US 87 in Hale Center | 02002-02-282002[90] | current | |||
| 9.282[91] | 14.938 | I-27/US 87 south ofPlainview | I-27/US 87 in Plainview | 01990-06-211990[91] | current | FormerlyLoop 445 signed asBus. US 87[92] | ||
| 3.400[93] | 5.472 | Fed. 85 atGateway to the Americas International Bridge inLaredo | I-35/US 83 in Laredo | 01991-03-261991[93] | current | Segment formerlyBus. US 83 andLoop 420 preceded byUS 81/US 83[94][95] | ||
| 1.222[96] | 1.967 | I-35 south ofEncinal | I-35/SH 44 north of Encinal | 01990-06-211990[96] | current | FormerlyLoop 532 signed asBus. US 81[97] | ||
| 2.872[98] | 4.622 | I-35 south ofCotulla | I-35 in Cotulla | 01991-03-261991[98] | current | Formerly part ofUS 81[98] | ||
| 4.147[99] | 6.674 | I-35 south ofDilley | I-35 north of Dilley | 01991-03-261991[99] | current | Formerly part ofUS 81[99] | ||
| 5.449[100] | 8.769 | I-35/FM 1581 inPearsall | I-35 north of Pearsall | 01991-03-261991[100] | current | Segment formerly part ofUS 81[100] | ||
| 4.488[101] | 7.223 | I-35 inNew Braunfels | I-35 in New Braunfels | 01991-03-261991[101] | current | Formerly part ofUS 81[101] | ||
| 1.461[102] | 2.351 | I-35 inKyle | I-35 in Kyle | 01990-06-211990[102] | current | Formerly part ofUS 81[102] | ||
| 3.648[103] | 5.871 | I-35 inRound Rock | I-35/FM 3406 in Round Rock | 01990-06-211990[103] | 02013-02-282013[103] | FormerlyLoop 384 signed asBus. US 81;[104] segment nowSpur 379[105] | ||
| 5.1[106] | 8.2 | I-35 inGeorgetown | I-35 in Georgetown | 01990-06-211990[106] | 02006-05-252006[106] | FormerlyLoop 418 signed asBus. US 81;[107] segments nowSpur 26 andSpur 158[106] | ||
| 2.288[108] | 3.682 | I-35W inAlvarado | I-35W in Alvarado | 01990-10-251990[108] | current | FormerlyLoop 392 signed asBus. US 81[109] | ||
| 1.883[110] | 3.030 | I-35 inSanger | I-35 in Sanger | 01991-12-191991[110] | current | FormerlySpur 138; a portion preceded by part ofUS 77[111] | ||
| 0.779[112] | 1.254 | Historic US 66 atNew Mexico state line inGlenrio | I-40 east of Glenrio | 01990-06-211990[112] | current | FormerlySpur 504; segment preceded by part ofUS 66[113] | ||
| 2.369[114] | 3.813 | I-40 west ofAdrian | I-40 east of Adrian | 01990-06-211990[114] | current | FormerlyLoop 550[115] preceded by part ofUS 66[116] | ||
| 3.395[117] | 5.464 | I-40 west ofVega | I-40 east of Vega | 01990-06-211990[117] | current | FormerlyLoop 551[118] preceded by part ofUS 66[119] | ||
| 14.125[120] | 22.732 | I-40 west ofAmarillo | I-40 east of Amarillo | 01990-10-251990[120] | current | FormerlyLoop 552 preceded by part ofUS 66[121] | ||
| 3.533[122] | 5.686 | I-40 west ofGroom | I-40 east of Groom | 01990-06-211990[122] | current | FormerlyLoop 554 preceded by part ofUS 66[123] | ||
| 3.796[124] | 6.109 | I-40 west ofMcLean | I-40 east of McLean | 01990-06-211990[124] | current | FormerlyLoop 555 preceded by part ofUS 66[125] | ||
| 2.770[126] | 4.458 | I-40 west ofShamrock | I-40 east of Shamrock | 01993-03-241993[126] | current | FormerlyLoop 556 preceded by part ofUS 66[127] | ||
| 6.367[128] | 10.247 | I-45 inCorsicana | I-45/US 287 north of Corsicana | 01990-06-211990[128] | current | FormerlyLoop 564 preceded by part ofUS 75[129] | ||
| 4.512[130] | 7.261 | I-45 inEnnis | I-45 in Ennis | 01990-06-211990[130] | current | FormerlyLoop 563 preceded by part ofUS 75[131] | ||
| 2.330[132] | 3.750 | I-45 inPalmer | I-45 north of Palmer | 01990-06-211990[132] | current | FormerlyLoop 562 preceded by part ofUS 75[133] | ||
| 3.367[134] | 5.419 | I-45 south ofFerris | I-45 north of Ferris | 01990-06-211990[134] | current | FormerlyLoop 560 preceded by part ofUS 75[135] | ||
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