List of Interstate Highways in Texas

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Texas Interstate Highway markers
A map of the Interstate Highways in Texas
All Interstate Highways in Texas
System information
Length: 3,274.7 mi (5,270.1 km)
Highway names
Interstates: Interstate Highway X (IH-X, I-X)
US Routes: 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

The Interstate Highways in Texas are all owned and maintained by the U.S. state of Texas.[1] 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 ten primary routes, six 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.[2] 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.[3] The opening of a 6-mile (10 km) section of I-27 in 1992 completed the Interstate Highway System in Texas.[4]

Planning is ongoing for a proposed extension of I-69 southward from its current terminus in Indiana through Texas to the United States–Mexico border.[5] 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.[6] The first 6.2-mile (10.0 km) portion was approved in 2011, with signage posted December 6, 2011.


Primary Interstate Highways[edit]

Highway Location Length (mi) Length (km) Description Date established Notes
I-2 Hidalgo and Cameron counties 46.8 75.3 I-2 follows the freeway segment of US 83 in the Rio Grande Valley of South Texas; it connects I-69C with I-69E.[7] 2013 [8]
I-10 El Paso, Hudspeth, Culberson, Jeff Davis, Reeves, Pecos, Crockett, Sutton, Kimble, Kerr, Gillespie, Kendall, Bexar, Guadalupe, Caldwell, Gonzales, Fayette, Colorado, Austin, Waller, Harris, Chambers, Jefferson and Orange counties 878.6 1,414.0 I-10 enters the state from New Mexico northwest of El Paso, passing through rural West Texas on its way to San Antonio, where it has junctions with I-35 and I-37. It continues east to Houston, where it has a junction with I-45, then enters Louisiana near Orange. I-10 is Texas' longest Interstate.[9] It is also the longest continuous untolled freeway under a single authority in North America. 1959 [10]
I-20 Reeves, Ward, Crane, Ector, Midland, Martin, Howard, Mitchell, Nolan, Taylor, Callahan, Eastland, Erath, Palo Pinto, Parker, Tarrant, Dallas, Kaufman, Van Zandt, Smith, Gregg and Harrison counties 636.1 1,023.7 I-20 begins at exit 186 on I-10 in West Texas and heads towards the northeast. The highway is a major east-west corridor through the Dallas–Fort Worth metroplex, the Dallas and Fort Worth combined metropolitan areas, where it has junctions with I-30, I-35W, I-35E and I-45. I-20 passes through East Texas before it enters Louisiana east of Marshall.[11] 1959 [12]
I-27 Lubbock, Hale, Swisher, Randall and Potter counties 124.1 199.7 I-27 begins at Loop 289 in southern Lubbock and heads north in the Texas Panhandle. It ends at exit 70 on I-40 in Amarillo.[13] 1969 [14]
I-30 Parker, Tarrant, Dallas, Rockwall, Hunt, Hopkins, Franklin, Titus, Morris and Bowie counties 223.7 360.0 I-30 begins at exit 421 on I-20 in the western portions of the Dallas–Fort Worth metroplex, the Dallas and Fort Worth combined metropolitan areas. As it heads east through the metroplex, it has junctions with I-35W, I-35E and I-45. After leaving the metroplex, the highway heads towards the east-northeast and enters Arkansas at Texarkana.[15] 1959 [16]
I-35 Webb, La Salle, Frio, Medina, Atascosa, Bexar, Guadalupe, Comal, Hays, Travis, Williamson, Bell, Falls, McLennan, Hill, Denton and Cooke counties 407.2 655.3 I-35 begins at the United States–Mexico border in Laredo and heads north towards San Antonio. In San Antonio, it intersects I-10 and I-37 before heading north to Austin, the state capital. North of Hillsboro, the highway splits into two branches, I-35W which heads to Fort Worth and I-35E that heads to Dallas. The two branches reunite in Denton and I-35 heads north, entering Oklahoma north of Gainesville.[17][18] 1959 [19]
I-35E Hill, Ellis, Dallas and Denton counties 96.8 155.8 I-35E is the eastern and less direct branch of I-35 from Hillsboro to Denton; it passes through Dallas, where it intersects I-20 and I-30.[20] 1959 [21]
I-35W Hill, Johnson, Tarrant and Denton counties 85.2 137.1 I-35W is the western and more direct branch of I-35 from Hillsboro to Denton; it passes through Fort Worth, where it intersects I-20 and I-30.[22] 1959 [23]
I-37 Nueces, San Patricio, Live Oak, Atascosa and Bexar counties 143.0 230.1 I-37 begins in Corpus Christi near the Gulf Coast and heads towards the north-northwest. It intersects I-10 before it ends at exit 158 on I-35 in San Antonio.[24] 1959 [25]
I-40 Deaf Smith, Oldham, Potter, Carson, Gray, Donley and Wheeler counties 177.1 285.0 I-40 crosses the Texas Panhandle from New Mexico to Oklahoma, and has a junction with I-27 in Amarillo. The alignment of I-40 is the approximate alignment of the historic U.S. Highway 66 (US 66).[26] 1959 [27]
I-44 Wichita County 14.8 23.8 I-44 begins in Wichita Falls and heads north to Oklahoma.[28] 1982 [29]
I-45 Galveston, Harris, Montgomery, Walker, Madison, Leon, Freestone, Navarro, Ellis and Dallas counties 284.9 458.5 I-45 begins in Galveston at the Gulf Coast and heads north intersecting I-10 in Houston. It passes through East Texas and intersects I-20 before ending at exit 46 on I-30 in Dallas.[30] 1959 [31]
I-69 Fort Bend, Harris, Montgomery, and Liberty counties 41.2 66.3 I-69 encompasses two separate sections in Texas. The southern section begins just to the southwest of Rosenberg and travels northeast to I-610 in southwest Houston. The northern section begins at I-610 in northeast Houston and travels northeast to a location just north of the Liberty County line. In the future, I-69 is planned to follow US 59 from the future junctions of both I-69E and I-69W from a location just to the south of Victoria through Houston where I-69 will intersect I-10, I-45, and I-610 then to Tenaha where I-69 will intersect I-369 from there I-69 is planned to follow US 84 to the Louisiana state line. 2011 [32]
I-69C Hidalgo County 13.5 21.7 I-69C begins in Pharr at Interstate 2 and travels north to an intersection in Edinburg. In the future, I-69C is planned to follow US 281 to George West where it will meet with I-69W. 2013 [33]
I-69E Cameron, Willacy, and Nueces counties 53.3 85.8 I-69E encompasses two separate sections in Texas. The southern segment begins in Brownsville at Veterans International Bridge at Los Tomates and travels north to an intersection in Raymondville. The northern segment begins in Robstown at SH 44 and travels north to an intersection with I-37 west of Corpus Christi. In the future, I-69E is planned to follow US 77 to a location just to the south of Victoria where I-69E will merge with I-69W to form I-69. 2013 [34]


Auxiliary Interstate Highways[edit]

Highway Location Length (mi) Length (km) Description Date established Notes
I-110 El Paso County 0.9 1.4 I-110 is a spur of I-10 at exit 22B in El Paso. It connects I-10 to the Bridge of the Americas, the entry point into Ciudad Juárez, Mexico.[35] 1967 [36]
I-345 Dallas County 1.4 2.3 I-345 is a spur beginning at the northern terminus of I-45. The spur is a continuation of I-45, and the highway continues as US 75 beyond the northern terminus of I-345. It provides a connecting route from I-45 to Spur 366 and US 75 in Dallas.[37] 1964 [38]
I-369 Bowie County 3.5 5.6 I-369 is a spur of I-69 currently the west side of the Loop in Texarkana from US 59/SH 93 to I-30/US 59. In the future, I-369 is planned to follow US 59 from I-69 in Tenaha to Texarkana (where it is planned to intersect I-49) with a complete length of 115 miles (185 km). I-369 is also planned to intersect I-20 in Harrison County.[7] 2013
I-410 Bexar County 49.5 79.7 I-410, also known as the John Connally Loop, is a loop of I-10 around the city of San Antonio. It also intersects I-35 and I-37.[39] 1959 [40]
I-610 Harris County 38.0 61.2 I-610 is a loop of I-10 around the city of Houston. It also intersects I-45.[41] 1959 [42]
I-635 Dallas and Tarrant counties 37.0 59.5 I-635, also known as the Lyndon B. Johnson Freeway, is a loop of I-35E. It forms a partial loop around Dallas, and also intersects I-20, I-30, and I-45.[43] 1959 [44]
I-820 Tarrant County 35.2 56.6 I-820, also known as the Jim Wright Freeway, is a loop of I-20. It forms the western, northern and eastern arcs of a complete loop around Fort Worth; I-20 forms the southern arc. I-820 also intersects I-30 and I-35W.[45] 1959 [46]


See also[edit]

References[edit]

  1. ^ Staff. "Interstate Frequently Asked Questions". Federal Highway Administration. Retrieved February 25, 2008. 
  2. ^ Staff. "TxDOT History: 1970 to 1951". Texas Department of Transportation. Retrieved February 25, 2008. 
  3. ^ 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 on May 6, 2008. Retrieved February 25, 2008. 
  4. ^ Staff. "TxDOT History: 2000 to 1971". Texas Department of Transportation. Retrieved February 25, 2008. 
  5. ^ Staff. "I-69/TTC (Northeast Texas to Mexico)". Texas Department of Transportation. Archived from the original on July 20, 2008. Retrieved February 24, 2008. 
  6. ^ Staff (February 9, 2008). "TTC Tier 1 EIS Meeting Handout". Texas Department of Transportation. 
  7. ^ a b Staff (May 30, 2013). "Interstate 69 Comes to Texarkana and the Valley" (Press release). Alliance for I-69 Texas. Retrieved May 31, 2013. 
  8. ^ Transportation Planning and Programming Division. "Interstate Highway No. 2". Highway Designation Files. Texas Department of Transportation. Retrieved September 3, 2013. 
  9. ^ Google Inc. "Overview map of I-10". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=4124876968975679556,32.000690,-106.582900%3B10459779339976920174,30.127500,-93.701220&saddr=I-10+E+%4032.000690,+-106.582900&daddr=29.412087,-98.506165+to:I-10+E+%4030.127500,+-93.701220&mra=dpe&mrcr=0&mrsp=1&sz=11&via=1&sll=29.556137,-98.512344&sspn=0.39481,0.63858&ie=UTF8&ll=30.600094,-100.415039&spn=12.48399,20.43457&z=6. Retrieved February 25, 2008.
  10. ^ Transportation Planning and Programming Division. "Interstate Highway No. 10". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  11. ^ Google Inc. "Overview map of I-20". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=7895626428637096316,31.087770,-104.055030&saddr=Unknown+road+%4031.087770,+-104.055030&daddr=32.461102,-94.042961&mra=mi&mrsp=1,0&sz=19&sll=32.461133,-94.04295&sspn=0.001496,0.002494&ie=UTF8&ll=31.896214,-99.272461&spn=12.315066,20.43457&z=6. Retrieved February 25, 2008.
  12. ^ Transportation Planning and Programming Division. "Interstate Highway No. 20". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  13. ^ Google Inc. "Overview map of I-27". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=10768451533901432405,33.529085,-101.844055&saddr=US-87+N+%4033.529085,+-101.844055&daddr=35.192942,-101.837023&mra=mi&mrsp=1,0&sz=18&sll=35.193586,-101.836862&sspn=0.002898,0.004989&ie=UTF8&ll=34.465806,-101.958618&spn=2.993352,5.108643&z=8. Retrieved February 25, 2008.
  14. ^ Transportation Planning and Programming Division. "Interstate Highway No. 27". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  15. ^ Google Inc. "Overview map of I-30". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=10139518408216521561,32.723963,-97.579236%3B10343026203352416216,33.470110,-94.042880&saddr=I-30+E+%4032.723963,+-97.579236&daddr=33.47011,-94.042891&mra=dme&mrcr=0&mrsp=1&sz=19&sll=33.470102,-94.042875&sspn=0.001479,0.002494&ie=UTF8&ll=33.096144,-95.701904&spn=3.041589,5.108643&z=8. Retrieved February 25, 2008.
  16. ^ Transportation Planning and Programming Division. "Interstate Highway No. 30". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  17. ^ Google Inc. "Overview map of southern section of I-35". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=2648713429536618100,27.500320,-99.502690%3B8907049352027800660,32.052760,-97.093530&saddr=I-35%2FSan+Dario+Ave+%4027.500320,+-99.502690&daddr=I-35+N+%4032.052760,+-97.093530&doflg=ptm&sll=29.50894,-98.294678&sspn=1.579931,2.554321&ie=UTF8&z=7. Retrieved February 25, 2008.
  18. ^ Google Inc. "Overview map of northern section of I-35". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=1309028751965685703,33.219600,-97.170440%3B10248154355255477551,33.726850,-97.159650&saddr=I-35+N+%4033.219600,+-97.170440&daddr=I-35+N+%4033.726850,+-97.159650&doflg=ptm&sll=33.473225,-97.165545&sspn=0.757187,1.277161&ie=UTF8&z=10. Retrieved February 25, 2008.
  19. ^ Transportation Planning and Programming Division. "Interstate Highway No. 35". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  20. ^ Google Inc. "Overview map of I-35E". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=9812878257799335015,32.057132,-97.091048%3B11141893483052582264,33.219386,-97.170369&saddr=Unknown+road+%4032.057132,+-97.091048&daddr=32.676373,-96.825256+to:I-35+N+%4033.219386,+-97.170369&mra=dpe&mrcr=0&mrsp=1&sz=9&via=1&doflg=ptm&sll=32.63826,-97.18786&sspn=1.528745,2.554321&ie=UTF8&z=9. Retrieved February 25, 2008.
  21. ^ Transportation Planning and Programming Division. "Interstate Highway No. 35-E". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  22. ^ Google Inc. "Overview map of I-35W". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=8570081817830080755,32.058983,-97.095154%3B11141893483052582264,33.219386,-97.170369&saddr=Unknown+road+%4032.058983,+-97.095154&daddr=I-35+N+%4033.219386,+-97.170369&doflg=ptm&sll=32.639185,-96.9873&sspn=1.528745,2.554321&ie=UTF8&ll=32.639375,-97.207031&spn=1.528745,2.554321&z=9. Retrieved February 25, 2008.
  23. ^ Transportation Planning and Programming Division. "Interstate Highway No. 35-W". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  24. ^ Google Inc. "Overview map of I-37". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=2568522560958495253,27.801020,-97.395701%3B6464171849619486050,29.438726,-98.477498&saddr=I-37+N+%4027.801020,+-97.395701&daddr=US-281+N+%4029.438726,+-98.477498&doflg=ptm&sll=28.61835,-97.938615&sspn=3.187023,5.108643&ie=UTF8&z=8. Retrieved February 25, 2008.
  25. ^ Transportation Planning and Programming Division. "Interstate Highway No. 37". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  26. ^ Google Inc. "Overview map of I-40". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=5662480466359574814,35.182400,-103.042390%3B5911295218433263232,35.226777,-100.000434&saddr=I-40+E+%4035.182400,+-103.042390&daddr=I-40+E+%4035.226777,+-100.000434&doflg=ptm&sll=35.226135,-101.52141&sspn=2.965779,5.108643&ie=UTF8&z=8. Retrieved February 25, 2008.
  27. ^ Transportation Planning and Programming Division. "Interstate Highway No. 40". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  28. ^ Google Inc. "Overview map of I-44". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=8443879619514798407,33.907863,-98.499909%3B13211470767394561891,34.106362,-98.537153&saddr=US-281+N%2FUS-287+N+%4033.907863,+-98.499909&daddr=I-44+E+%4034.106362,+-98.537153&doflg=ptm&sll=34.00711,-98.529115&sspn=0.376244,0.63858&ie=UTF8&z=11. Retrieved February 25, 2008.
  29. ^ Transportation Planning and Programming Division. "Interstate Highway No. 44". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  30. ^ Google Inc. "Overview map of I-45". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=4957632294807506747,29.288910,-94.835070%3B14867847305299887983,32.779047,-96.782088&saddr=I-45+N+%4029.288910,+-94.835070&daddr=I-45+N+%4032.779047,+-96.782088&doflg=ptm&sll=31.032225,-95.80858&sspn=6.220231,10.217285&ie=UTF8&z=7. Retrieved February 25, 2008.
  31. ^ Transportation Planning and Programming Division. "Interstate Highway No. 45". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  32. ^ Brezosky, Lynn (December 6, 2011). "Coastal Bend, Valley unveil first stretch of Interstate 69". San Antonio Express-News. Retrieved December 10, 2011. 
  33. ^ Transportation Planning and Programming Division. "Interstate Highway No. 69-C". Highway Designation Files. Texas Department of Transportation. 
  34. ^ Transportation Planning and Programming Division. "Interstate Highway No. 69-E". Highway Designation Files. Texas Department of Transportation. 
  35. ^ Google Inc. "Overview map of I-110". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=2000408293668255320,31.768795,-106.450817%3B15413691847362830141,31.777527,-106.442235&saddr=I-110+N+%4031.768795,+-106.450817&daddr=US-54+E+%4031.777527,+-106.442235&doflg=ptm&sll=31.773163,-106.446533&sspn=0.012058,0.019956&ie=UTF8&z=16. Retrieved February 25, 2008.
  36. ^ Transportation Planning and Programming Division. "Interstate Highway No. 110". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  37. ^ Google Inc. "Overview map of I-345". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=14867847305299887983,32.779047,-96.782088%3B16396379103102280900,32.795465,-96.792642&saddr=I-45+N+%4032.779047,+-96.782088&daddr=US-75+N+%4032.795465,+-96.792642&doflg=ptm&sll=32.787255,-96.787365&sspn=0.023848,0.039911&ie=UTF8&z=15. Retrieved February 25, 2008.
  38. ^ Transportation Planning and Programming Division. "Interstate Highway No. 345". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  39. ^ Google Inc. "Overview map of I-410". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=2355175623909919017,29.316846,-98.608354%3B6009444865328575504,29.316841,-98.608338&saddr=I-410+W+%4029.316846,+-98.608354&daddr=29.5185,-98.414154+to:I-410+W+%4029.316841,+-98.608338&mra=dpe&mrcr=0&mrsp=1&sz=10&via=1&sll=29.386962,-98.981323&sspn=0.686836,1.505127&ie=UTF8&ll=29.419862,-98.497925&spn=0.343308,0.752563&z=11. Retrieved February 24, 2008.
  40. ^ Transportation Planning and Programming Division. "Interstate Highway No. 410". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  41. ^ Google Inc. "Overview map of I-610". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=7102506020268876753,29.680734,-95.381120%3B12428175088594331463,29.810490,-95.437020%3B2373592845368957295,29.762585,-95.265474%3B1113188088320424287,29.680735,-95.381099&saddr=I-610+W+%4029.680734,+-95.381120&daddr=I-610+E+%4029.810490,+-95.437020+to:I-610+S+%4029.762585,+-95.265474+to:I-610+W+%4029.680735,+-95.381099&via=1,2&doflg=ptm&sll=29.745785,-95.361885&sspn=0.197034,0.31929&ie=UTF8&z=12. Retrieved February 25, 2008.
  42. ^ Transportation Planning and Programming Division. "Interstate Highway No. 610". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  43. ^ Google Inc. "Overview map of I-635". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=11116909505123182620,32.696293,-96.629155%3B14922019021673409987,32.949310,-97.032950&saddr=I-635+N+%4032.696293,+-96.629155&daddr=I-635+W+%4032.949310,+-97.032950&doflg=ptm&sll=32.8228,-96.8224&sspn=0.38141,0.63858&ie=UTF8&z=11. Retrieved February 25, 2008.
  44. ^ Transportation Planning and Programming Division. "Interstate Highway No. 635". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 
  45. ^ Google Inc. "Overview map of I-820". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=12646548308625962506,32.687703,-97.465293%3B17170384886961160368,32.666250,-97.241400&saddr=I-820+N+%4032.687703,+-97.465293&daddr=32.839212,-97.293549+to:I-820+S+%4032.666250,+-97.241400&mra=dpe&mrcr=0&mrsp=1&sz=11&via=1&sll=32.754365,-97.26265&sspn=0.331466,0.752563&ie=UTF8&ll=32.753788,-97.305222&spn=0.331468,0.752563&z=11. Retrieved February 24, 2008.
  46. ^ Transportation Planning and Programming Division. "Interstate Highway No. 820". Highway Designation Files. Texas Department of Transportation. Retrieved February 24, 2008. 

External links[edit]