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List of Interstate Highways in Texas

Dwight D. Eisenhower National System of Interstate and Defense Highways
Interstate 10 marker
Interstate 410 marker
Interstate 20 Business marker
Highway markers for Interstate 10, Interstate 410, and Interstate 20 Business loop
Map
Interstate Highways highlighted in red
System information
Maintained by TxDOT
Length3,274.7 mi (5,270.1 km)
FormedJune 29, 1956 (1956-06-29)[1]
Highway names
InterstatesInterstate X (I-X)
Interstate Highway X (IH X)
US HighwaysU.S. Highway X (US X)
StateState 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

The Interstate Highways in Texas are all owned and maintained by the U.S. state of Texas.[2] The Texas Department of Transportation (TxDOT) is the agency responsible for the day-to-day maintenance and operations of the Interstate Highways in Texas. The Interstate Highway System in Texas covers 3,239.7 miles (5,213.8 km) and consists of twelve primary routes, seven auxiliary routes and Interstate 35 (I-35) which is split into two branches, I-35E and I-35W, that provide access to both Fort Worth and Dallas. The longest segment of Interstate Highway in Texas is I-10 at 878.6 miles (1,414.0 km); the shortest is I-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 of I-45 between Galveston and Houston 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 in Bexar 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 of San 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 of I-27 in 1992 completed the Interstate Highway System in Texas.[5]

Planning is ongoing for a proposed extension of I-69 southward from its original terminus in Indiana through Texas to the United States–Mexico border.[6] If complete as planned, I-69 will extend about 650 miles (1,050 km) across Texas, from the Louisiana state line in the Texarkana–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.

Primary Interstate Highways

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-2 46.8[8] 75.3 US 83/Bus. US 83 in Peñitas I-69E/US 77/US 83 in Harlingen 02013-05-302013[8] current Lowest numbered route in the system; Intersects I-69C in Pharr[9][10][11]
I-10 877.455[12] 1,412.127 I-10/US 85/US 180 at New Mexico state line in Anthony I-10/US 90 at Louisiana state line in Orange 01959-10-011959[12] current Intersects I-110 in El Paso;[13] I-20 between Kent and Balmorhea;[14][15] I-35, I-37, and I-410 in San Antonio;[16] and I-45, I-69, and I-610 in Houston[17]
I-14 25.90 41.68 US 190/SH 9 in Copperas Cove I-35/US 190 near Belton 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]
I-20 634.723[21] 1,021.488 I-10 between Kent and Toyah I-20 at Louisiana state line east of Waskom 01959-10-011959[21] current Intersects I-30, I-35W, and I-820 in Fort Worth;[22] I-35E, I-45, and I-635 in Dallas;[23] and future I-369 in Marshall[24]
I-27 124.182[25] 199.852 US 87/Loop 289 in Lubbock I‑40/US 60/US 87/US 287 in Amarillo 01968-12-241968[25] current Extensions to Laredo and New Mexico signed into law on March 15, 2022[26]
I-30 223.404[27] 359.534 I-20 in Fort Worth I-30/US 59/US 71 at Arkansas state line in Texarkana 01959-10-011959[27] current Intersects I-35W and I-820 in Fort Worth;[22] I-35E, I-45, I-345, and I-635 in Dallas;[23] and I-369 in Texarkana[28]
I-35 407.195[29] 655.317 I-35E & I-35W in Denton (Northern section)
Fed. 85 at Juárez–Lincoln International Bridge in Laredo (Southern section)		 I-35/US 77 at Oklahoma state line north of Gainesville (Northern section)
I-35E & I-35W in Hillsboro (Southern section) 		01959-10-011959[29] current Intersects I-69W in Laredo[30] then I-10, I-37, and I-410 in San Antonio[16][31] before branching at Hillsboro into I-35E and I-35W[32] through Dallas and Fort Worth reuniting in Denton[33]
I-35E 96.657[34] 155.554 I-35 & I-35W in Hillsboro I-35 & I-35W in Denton 01959-10-011959[34] current Eastern branch of I-35 through Dallas where it intersects I-20, I-30, and I-635[23][35]
I-35W 85.283[36] 137.250 I-35 & I-35E in Hillsboro I-35 & I-35E in Denton 01959-10-011959[36] current Western branch of I-35 through Fort Worth where it intersects I-20, I-30, and I-820[22]
I-37 142.787[37] 229.793 US 181/SH 35 in Corpus Christi I-35/US 281 in San Antonio 01959-10-011959[37] current Intersects I-69E in Corpus Christi;[38] future I-69W east of George West; and both I-10 and I-410 in San Antonio[16][31]
I-40 177.139[39] 285.078 I-40 at New Mexico state line in Glenrio I-40 at Oklahoma state line east of Shamrock 01959-10-011959[39] current Intersects I-27 in Amarillo[40]
I-44 15.398[41] 24.781 US 277/US 281/US 287 in Wichita Falls I-44/US 277/US 281 at Oklahoma state line north of Burkburnett 01982-06-291982[41] current
I-45 284.913[42] 458.523 SH 87 in Galveston I-30, I-345, US 67 in Dallas 01959-10-011959[42] current Intersects I-10, I-69, and I-610 in Houston;[17] and I-20 in Dallas[23]
I-49 2 3.2 I-49/US 59/US 71 at Arkansas state line north of Texarkana I-49 at Arkansas state line north of Texarkana proposed — Links two Arkansas I-49 segments[43]
I-69 74.9[44] 120.5 US 59/Spur 529 in Rosenberg US 59 near Cleveland 02011-10-272011[44][45] current Intersects I-10, I-45, and I-610 in Houston; The future I-69 will extend from I-69E/I-69W merger south of Victoria along US 59 to Tenaha intersecting I-369 before following US 84 to I-69 at Louisiana state line east of Joaquin[46]
I-69C 18[47] 29 I-2/US 83/US 281 in Pharr US 281/FM 490 in Edinburg 02013-05-302013[47] current The future I-69C will follow US 281 ending at I-69W in George West[46]
I-69E 61.1[48] 98.3 Fed. 101/Fed. 180 at Veterans International Bridge in Brownsville
US 77/FM 2826 in La Paloma-Lost Creek		 US 77 north of Raymondville
I-37/US 77 in Corpus Christi 		02013-05-302013[48] current Intersects I-169 in Olmito and I-2 in Harlingen; The future I-69E will follow US 77 to I-69/I-69W south of Victoria[46]
I-69W 1.4[49] 2.3 Fed. 85D at World Trade International Bridge in Laredo I-35/US 59/US 83/Loop 20 in Laredo 02014-06-262014[49] current The future I-69W will follow US 59 to I-69/I-69E south of Victoria intersecting I-69C in George West and I-37 east of George West[46]
  •       Proposed and unbuilt
  • Photograph
    I-10 and I-35 run concurrently as an elevated freeway in Downtown San Antonio
  • Photograph
    I-20 in southern Fort Worth
  • Photograph
    I-37 and I-410 interchange on the southeast side of San Antonio
  • Photograph
    Interchange between I-37 and I-69E/US 77
  • Aerial photograph
    I-10/US 90 and I-45 near Downtown Houston

Auxiliary Interstate Highways

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-110 0.891[50] 1.434 Fed. 45 at Bridge of the Americas in El Paso I-10/US 54/US 180 in El Paso 01967-03-281967[50] current Partially along US 54[13]
I-169 1.5 2.4 Port of Brownsville I-69E/US 77/US 83 in Olmito 02015-05-152015 current Frontage roads opened and signed as SH 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
I-345 1.400[51] 2.253 I-30/I-45/US 67 in Dallas US 75/Spur 366 in Dallas 01964-10-151964[51] current Unsigned
I-369 3.5[52] 5.6 US 59/SH 93/Loop 151 in Texarkana I-30/US 59 in Texarkana 02013-05-302013[52] current Proposed extension along US 59 to I-69 in Tenaha; intersects I-20[24]
I-410 49.488[53] 79.643 Beltway around San Antonio 01959-10-011959[53] current Intersects I-10, I-35, and I-37[16][31]
I-610 37.972[54] 61.110 Beltway around Houston 01959-10-011959[54] current Intersects I-10, I-45, and I-69[17]
I-635 36.999[55] 59.544 I-20 in Balch Springs SH 121 in Grapevine 01959-10-011959[55] current Partial Dallas beltway; intersects I-30, and I-35E[23][35]
I-820 35.173[56] 56.605 I-20 in Fort Worth I-20/US 287 in Fort Worth 01959-10-011959[56] current Partial Fort Worth beltway; intersects I-30 and I-35W[22]

Business Interstate Highways

Number Length (mi)[a] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-10 BL 2.747[57] 4.421 I-10 in Sierra Blanca I-10 in Sierra Blanca 01990-06-211990[57] current Formerly Loop 416 signed as Bus. US 80[58]
I-10 BL 2.881[59] 4.637 I-10 in Van Horn I-10 in Van Horn 01990-06-211990[59] current Formerly Loop 519 signed as Bus. US 80[60]
I-10 BL 2.000[61] 3.219 I-10/FM 2903 north of Balmorhea I-10/SH 17 east of Balmorhea 01991-11-211991[61] current Formerly part of US 290 and FM 2903[61]
I-10 BL 1.398[62] 2.250 I-10/US 67 in Fort Stockton I-10/US 67/US 385 in Fort Stockton 01991-01-211991[62] current Formerly part of US 290[62]
I-20 BL 14.042[63] 22.598 I-20 west of Pecos I-20 east of Barstow 01991-08-281991[63] current Formerly part of US 80[63]
I-20 BL 8.223[64] 13.234 I-20 west of Monahans I-20 in Monahans 01991-08-281991[64] current Formerly part of US 80[64]
I-20 BL 31.761[65] 51.114 I-20 in West Odessa I-20 east of Midland 01991-08-281991[65] current Formerly part of US 80[65]
I-20 BL 4.687[66] 7.543 I-20 west of Stanton I-20 east of Stanton 01995-03-301995[66] current Formerly Loop 214 preceded by US 80[67]
I-20 BL 5.609[68] 9.027 I-20 west of Big Spring I-20 in Big Spring 01990-06-211990[68] current Formerly Loop 402 signed as Bus. US 80[69]
I-20 BL 1.069[70] 1.720 I-20/FM 670 west of Westbrook I-20 in Westbrook 01990-06-211990[70] current Formerly Loop 333 preceded by US 80[71]
I-20 BL 5.926[72] 9.537 I-20 west of Colorado City I-20 east of Colorado City 01990-06-211990[72] current Formerly Loop 377 signed as Bus. US 80[73]
I-20 BL 1.633[74] 2.628 I-20 west of Loraine I-20 in Loraine 01990-06-211990[74] current Formerly Loop 316 preceded by US 80[75]
I-20 BS 1.644[76] 2.646 I-20 west of Roscoe Bus. US 84/FM 608 in Roscoe 01990-06-211990[76] current Formerly Loop 237 preceded by US 80[77]
I-20 BL 6.448[78] 10.377 I-20/US 84 west of Sweetwater I-20/US 84/SH 70 in Sweetwater 01990-06-211990[78] current Formerly Loop 432 signed as Bus. US 80[79]
I-20 BL 2.076[80] 3.341 I-20/US 84 west of Trent I-20/US 84 east of Trent 01990-06-211990[80] current Formerly Loop 319 preceded by US 80[81]
I-20 BL 2.786[82] 4.484 I-20/US 84 west of Merkel I-20/US 84/FM 1235 east of Merkel 01990-06-211990[82] current Formerly Loop 39 preceded by US 80[83]
I-20 BL 1.661[84] 2.673 I-20/US 84 in Tye I-20/US 84 in Tye 01990-06-211990[84] current Formerly Loop 320 preceded by US 80[85]
I-20 BL 8.466[86] 13.625 I-20/US 84 in Tye I-20 in Abilene 01990-06-211990[86] current Formerly Loop 355 signed as Bus. US 80[87]
I-20 BL 2.826[88] 4.548 I-20/FM 2047 west of Baird I-20 east of Baird 01990-06-211990[88] current Formerly Loop 425 preceded by US 80[89]
I-27 BL 1.168[90] 1.880 I-27/US 87 in Hale Center I-27/US 87 in Hale Center 02002-02-282002[90] current
I-27 BL 9.282[91] 14.938 I-27/US 87 south of Plainview I-27/US 87 in Plainview 01990-06-211990[91] current Formerly Loop 445 signed as Bus. US 87[92]
I-35 BL 3.400[93] 5.472 Fed. 85 at Gateway to the Americas International Bridge in Laredo I-35/US 83 in Laredo 01991-03-261991[93] current Segment formerly Bus. US 83 and Loop 420 preceded by US 81/US 83[94][95]
I-35 BL 1.222[96] 1.967 I-35 south of Encinal I-35/SH 44 north of Encinal 01990-06-211990[96] current Formerly Loop 532 signed as Bus. US 81[97]
I-35 BL 2.872[98] 4.622 I-35 south of Cotulla I-35 in Cotulla 01991-03-261991[98] current Formerly part of US 81[98]
I-35 BL 4.147[99] 6.674 I-35 south of Dilley I-35 north of Dilley 01991-03-261991[99] current Formerly part of US 81[99]
I-35 BL 5.449[100] 8.769 I-35/FM 1581 in Pearsall I-35 north of Pearsall 01991-03-261991[100] current Segment formerly part of US 81[100]
I-35 BL 4.488[101] 7.223 I-35 in New Braunfels I-35 in New Braunfels 01991-03-261991[101] current Formerly part of US 81[101]
I-35 BL 1.461[102] 2.351 I-35 in Kyle I-35 in Kyle 01990-06-211990[102] current Formerly part of US 81[102]
I-35 BL 3.648[103] 5.871 I-35 in Round Rock I-35/FM 3406 in Round Rock 01990-06-211990[103] 02013-02-282013[103] Formerly Loop 384 signed as Bus. US 81;[104] segment now Spur 379[105]
I-35 BL 5.1[106] 8.2 I-35 in Georgetown I-35 in Georgetown 01990-06-211990[106] 02006-05-252006[106] Formerly Loop 418 signed as Bus. US 81;[107] segments now Spur 26 and Spur 158[106]
I-35 BL 2.288[108] 3.682 I-35W in Alvarado I-35W in Alvarado 01990-10-251990[108] current Formerly Loop 392 signed as Bus. US 81[109]
I-35 BL 1.883[110] 3.030 I-35 in Sanger I-35 in Sanger 01991-12-191991[110] current Formerly Spur 138; a portion preceded by part of US 77[111]
I-40 BL 0.779[112] 1.254 Historic US 66 at New Mexico state line in Glenrio I-40 east of Glenrio 01990-06-211990[112] current Formerly Spur 504; segment preceded by part of US 66[113]
I-40 BL 2.369[114] 3.813 I-40 west of Adrian I-40 east of Adrian 01990-06-211990[114] current Formerly Loop 550[115] preceded by part of US 66[116]
I-40 BL 3.395[117] 5.464 I-40 west of Vega I-40 east of Vega 01990-06-211990[117] current Formerly Loop 551[118] preceded by part of US 66[119]
I-40 BL 14.125[120] 22.732 I-40 west of Amarillo I-40 east of Amarillo 01990-10-251990[120] current Formerly Loop 552 preceded by part of US 66[121]
I-40 BL 3.533[122] 5.686 I-40 west of Groom I-40 east of Groom 01990-06-211990[122] current Formerly Loop 554 preceded by part of US 66[123]
I-40 BL 3.796[124] 6.109 I-40 west of McLean I-40 east of McLean 01990-06-211990[124] current Formerly Loop 555 preceded by part of US 66[125]
I-40 BL 2.770[126] 4.458 I-40 west of Shamrock I-40 east of Shamrock 01993-03-241993[126] current Formerly Loop 556 preceded by part of US 66[127]
I-45 BL 6.367[128] 10.247 I-45 in Corsicana I-45/US 287 north of Corsicana 01990-06-211990[128] current Formerly Loop 564 preceded by part of US 75[129]
I-45 BL 4.512[130] 7.261 I-45 in Ennis I-45 in Ennis 01990-06-211990[130] current Formerly Loop 563 preceded by part of US 75[131]
I-45 BL 2.330[132] 3.750 I-45 in Palmer I-45 north of Palmer 01990-06-211990[132] current Formerly Loop 562 preceded by part of US 75[133]
I-45 BL 3.367[134] 5.419 I-45 south of Ferris I-45 north of Ferris 01990-06-211990[134] current Formerly Loop 560 preceded by part of US 75[135]
  •       Former
  • Photograph
    Bus. I-10-D in Van Horn
  • Photograph
    Bus. I-35-E in Pearsall

See also

Notes

  1. ^ Official route lengths do not include segments that run concurrently with other highways of greater hierarchy

References

  1. ^ McNichol, Dan (2006). The Roads that Built America. New York: Sterling. p. 106. ISBN 1-4027-3468-9.
  2. ^ Staff. "Interstate Frequently Asked Questions". Federal Highway Administration. Archived from the original on February 28, 2006. Retrieved February 25, 2008.
  3. ^ Staff. "TxDOT History: 1970 to 1951". Texas Department of Transportation. Archived from the original on April 14, 2021. Retrieved February 25, 2008.
  4. ^ Beaumont, Penny; Brinkmann, Rhonda; Ellis, David; Pourteau, Chris; Webb, Brandon V. "From Anywhere to Everywhere: The Development of the Interstate Highway System in Texas" (PDF). Texas Transportation Institute. p. 30. Archived from the original (PDF) on May 6, 2008. Retrieved February 25, 2008.
  5. ^ Staff. "TxDOT History: 2000 to 1971". Texas Department of Transportation. Archived from the original on August 5, 2012. Retrieved February 25, 2008.
  6. ^ Staff. "I-69/TTC (Northeast Texas to Mexico)". Texas Department of Transportation. Archived from the original on July 20, 2008. Retrieved February 24, 2008.
  7. ^ Staff (February 9, 2008). TTC Tier 1 EIS Meeting Handout. Texas Department of Transportation.
  8. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 2". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  9. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 351. Retrieved December 2, 2014.[needs update]
  10. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 381. Retrieved December 2, 2014.[needs update]
  11. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 411. Retrieved December 2, 2014.[needs update]
  12. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 10". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  13. ^ a b Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 6. Retrieved December 2, 2014.[needs update]
  14. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 30. Retrieved December 2, 2014.[needs update]
  15. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 40. Retrieved December 2, 2014.[needs update]
  16. ^ a b c d Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 339. Retrieved December 2, 2014.[needs update]
  17. ^ a b c Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 497. Retrieved December 2, 2014.[needs update]
  18. ^ Texas Transportation Commission (January 26, 2017). "Minute Order" (PDF). Texas Department of Transportation. p. 1. Archived (PDF) from the original on February 2, 2017. Retrieved January 26, 2017.
  19. ^ Office of Senator Johnny Isakson (April 28, 2005). "Chambliss, Isakson Seek to Include Study of Two Proposed New Interstates in National Highway Funding Bill" (Press release). Office of Senator Johnny Isakson. Archived from the original on September 27, 2011. Retrieved November 27, 2011.
  20. ^ Bryant, David (January 26, 2017). "Highway 190 is officially Interstate Highway 14 from Cove to Belton". Killeen Daily Herald. Archived from the original on January 28, 2017. Retrieved January 28, 2017.
  21. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 20". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  22. ^ a b c d Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 387. Retrieved December 2, 2014.[needs update]
  23. ^ a b c d e Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 417. Retrieved December 2, 2014.[needs update]
  24. ^ a b Staff (May 30, 2013). "Interstate 69 Comes to Texarkana and the Valley" (Press release). Alliance for I-69 Texas. Archived from the original on October 19, 2013. Retrieved May 31, 2013.
  25. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 27". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  26. ^ "Interstate 27 expansion signed into law". NewsWest 9. Midland, Texas: KWES-TV. March 17, 2022. Archived from the original on April 6, 2022. Retrieved March 30, 2022.
  27. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 30". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  28. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 521. Retrieved December 2, 2014.[needs update]
  29. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 35". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  30. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 287. Retrieved December 2, 2014.[needs update]
  31. ^ a b c Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 340. Retrieved December 2, 2014.[needs update]
  32. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 420. Retrieved December 2, 2014.[needs update]
  33. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 385. Retrieved December 2, 2014.[needs update]
  34. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 35-E". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  35. ^ a b Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 416. Retrieved December 2, 2014.[needs update]
  36. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 35-W". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  37. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 37". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  38. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 405. Retrieved December 2, 2014.[needs update]
  39. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 40". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  40. ^ Transportation Planning and Programming Division (2014). Texas County Mapbook (PDF) (Map) (2014 ed.). 1:120,000. Texas Department of Transportation. p. 119. Retrieved December 2, 2014.[needs update]
  41. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 44". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  42. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 45". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  43. ^ Planning and Research Division (2012). 2012 Highway Map of Arkansas (PDF) (Map). Scale not given. Little Rock: Arkansas State Highway and Transportation Department. § H2. Archived from the original (PDF) on February 21, 2014. Retrieved December 3, 2014.
  44. ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 69". Highway Designation Files. Texas Department of Transportation. Retrieved December 3, 2014.
  45. ^ Brezosky, Lynn (December 6, 2011). "Coastal Bend, Valley Unveil First Stretch of Interstate 69". San Antonio Express-News. Archived from the original on February 5, 2012. Retrieved December 10, 2011.
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