Interstate 37 marker

Interstate 37

I-37 highlighted in red
Route information
Maintained by TxDOT
Length143.00 mi[1] (230.14 km)
ExistedOctober 16, 1959[2]–present
NHSEntire route
Major junctions
South end US 181 / SH 35 at Corpus Christi
Major intersections
North end I-35 / US 281 in San Antonio
Location
CountryUnited States
StateTexas
CountiesNueces, San Patricio, Live Oak, Atascosa, Bexar
Highway system
← SH 36→ SH 37
I-37 from the top of the Tower of the Americas in San Antonio

Interstate 37 (I-37[lower-alpha 1]) is a 143-mile (230 km) Interstate Highway located within the southern portion of the US state of Texas. The highway was first designated in 1959 as a route between Corpus Christi and San Antonio. Construction in the urban areas of Corpus Christi and San Antonio began in the 1960s, and the segments of the Interstate Highway in rural areas were completed by the 1980s. Prior to I-37, the route between Corpus Christi and San Antonio was served by a combination of State Highway 9 (SH 9) from Corpus Christi to Three Rivers and US Highway 281 (US 281) from Three Rivers to San Antonio. As a result of the construction of I-37, SH 9 was removed from the State Highway System (the designation would be reinstated to another highway in 2014).

The highway begins in Corpus Christi at US 181 and SH 35 and heads north to San Antonio, where it ends at I-35. Beyond I-35, the freeway continues as US 281 to northern San Antonio as a major freeway. In Corpus Christi, the highway provides access to the downtown area, the Port of Corpus Christi, and Corpus Christi International Airport. In San Antonio, it provides access to Downtown San Antonio, Brooks City-Base, the Alamodome, the Tower of the Americas, the San Antonio River Walk, the Alamo, and, by extension via US 281, San Antonio International Airport. The route provides an important connection between I-35 and the Texas Gulf Coast as well as one of the few limited-access hurricane evacuation routes away from the southern Texas coast.

Route description

I-37 starts near the Gulf Coast in Corpus Christi and heads northwest toward San Antonio.[2] It links South Texas to the northern parts of the state via I-69E, US 77, and US 281. The highway functions as one of the few freeway hurricane evacuation routes for the southern Texas coast. It roughly parallels US 181, which both begins and ends at I-37, and US 281.[4]

A rural segment of I-37 between Corpus Christi and San Antonio

Unofficially, I-37 begins at an intersection with Shoreline Boulevard on the edge of Corpus Christi Bay. It then heads west as a surface street for three blocks where it becomes entrance and exit ramps which connect to the freeway.[5] I-37 begins officially at the gore point for these ramps, which is part of an interchange complex that also represents the southern ends of US 181 and SH 35.[6]

It heads west from US 181 through Corpus Christi and intersects two freeways, SH 286 (the Crosstown Expressway) at exit 1C and SH 358 (Padre Island Drive) at exit 4A. The highway turns toward the northwest after the SH 358 interchange roughly parallel to the south of the Nueces River. Just prior to leaving the Corpus Christi city limits, it intersects and has a short concurrency with US 77 (future I-69E). US 77 (future I-69E) merges with I-37 as a freeway from the south at exit 14A northbound and exit 14 southbound; the two continue to the north and split after crossing the Nueces River. The Interstate continues to the northwest as US 77 (future I-69E) continues to the northeast at exit 17.[7]

I-37 transitions to a rural setting once outside of the Corpus Christi city limits on its way to Mathis and Lake Corpus Christi. It continues on to the northwest and intersects US 59 (future I-69W) east of George West at exit 56. It begins paralleling US 281 to the east before the two intersect at exit 72 and have a concurrency north of Three Rivers near Choke Canyon Reservoir. Alternate US 281 (Alt. US 281) splits off from I-37 near Sunniland at exit 76 and parallels I-37 before rejoining north of Campbellton at exit 92 southbound. The two routes remain concurrent until US 281 splits off at exit 104 northbound to head to Pleasanton, while I-37 bypasses the city to the east. After US 281 leaves toward the northwest, I-37 turns to the north toward San Antonio.[7]

I-37 and I-410 interchange on the southeast side of San Antonio

As I-37 enters the San Antonio city limits, it intersects the northern terminus of US 181 at exit 132 southbound (this is according to the Texas Department of Transportation, or TxDOT; the American Association of State Highway and Transportation Officials, or AASHTO, extends US 181 northward to the northern terminus of I-37). Continuing to the north, it intersects I-410, the inner loop around San Antonio, at exit 133 at a stack interchange. At this junction, the Interstate once again runs concurrently with US 281 which had been concurrent with I-410. Heading north through the south side of San Antonio, I-37 provides access to Brooks City-Base (formerly Brooks Air Force Base). After exit 135, a cloverleaf interchange at Loop 13, the freeway turns toward the northwest. The highway intersects I-10, which is concurrent with US 90 and US 87, at exit 139 at a stack interchange on the southeastern corner of Downtown San Antonio. After the interchange, it once again heads north on the east side of downtown. It passes near the Alamodome, Tower of the Americas, San Antonio River Walk, and Alamo. I-37 ends at the northeastern corner of downtown at exits 142A and 142B at a junction with I-35. US 281 continues to the north as a freeway and provides access to San Antonio International Airport and later far north central Texas.[7]

From I-410 to I-10 in San Antonio, I-37 is designated the Lucian Adams Freeway, after the World War II veteran. Adams is a native of Port Arthur and received the Medal of Honor for his service in France, along with the Bronze Star Medal and Purple Heart, for his gallantry during the Battle of Monte Cassino.[8] From I-10 to its northern terminus at I-35, it is designated the Staff Sergeant William J. Bordelon Freeway. Bordelon was the first San Antonio native to receive the Medal of Honor after being killed in action during WWII.[9][10]

History

Prior to I-37, the routing between Corpus Christi and San Antonio was covered by SH 9 from Corpus Christi to Three Rivers and US 281 from Three Rivers to San Antonio. Beginning in 1971, sections of SH 9 were officially removed from the State Highway System as I-37 was completed.[11] No sections of US 281 were removed from the State Highway System as a result of the construction of I-37, but the two do share the same alignment at two different points between San Antonio and Three Rivers. Also, US 281 was rerouted onto I-37 in San Antonio in 1978.[7][12][13]

I-37 was first designated in 1959 to provide a route between San Antonio and Corpus Christi,[2] and construction began in the 1960s. The $11-million (equivalent to $67.7 million in 2022[14]) project to construct the interchange with I-10 was at the time the largest single contract in the history of the state highway commission.[15] The route was completed by the 1980s.[4] The first sections of the freeway completed were in Corpus Christi. The freeway was completed from its southern terminus to 1.2 miles (1.9 km) to the west at the Port Avenue overpass to include the SH 286 interchange in 1963.[16][17][18][19][20] In 1964, the freeway was extended another 1.1 miles (1.8 km) westward with the completion of the overpasses at Nueces Bay and Buddy Lawrence boulevards.[21][22][23] By 1965, the freeway had been extended west 1.4 miles (2.3 km) to Navigation Boulevard.[24][25] In 1966, the interchange at SH 358 was complete, as were the mainlanes to Corn Products Road, one mile (1.6 km) west of the SH 358 interchange.[26][27][28] By 1968, the freeway had been completed an additional 8.1 miles (13.0 km) further west to Callicoatte Road.[29][30] The southbound I-37 bridge over the Nueces River was built in 1933 for US 77 (future I-69E) when it was first routed through Corpus Christi.[31][32] The northbound bridge was built in 1958 with the expansion of US 77 (future I-69E) to four lanes.[33]

The southern terminus of I-37 in Corpus Christi

Construction in San Antonio also began in the 1960s and was completed in 1972. The first sections were completed in 1967 to include the portion just south of I-410 at the US 181 interchange.[34] The section from Steves Avenue north to Florida Street to include the I-10 interchange was also complete in 1967.[35][36][37] In 1968, the section south of I-410 was extended south to Loop 1604.[38] In 1969, the two sections were connected with the completion of overpasses at Goliad Road, Pecan Valley Drive, Fair Avenue, and Hackberry Street as well as the completion of the interchanges at I-410 and Loop 13.[39][40][41][42][43][44] The last sections left were on the eastside of downtown. The downtown overpasses at Durango Boulevard, Commerce Street, and the overpass stretching from Houston Street to Jones Avenue were all completed in 1972.[45][46][47] The last portion completed in San Antonio was the stack interchange at I-35 (also known as the San Antonio "Downtown Mixer"), near the Pearl Brewery. With the completion of the interchange in 1972,[48] the city had a complete freeway loop in conjunction with I-10 and I-35 around the central business district of the city. At the time construction began in July 1969, the I-35 interchange was the largest highway construction project in state history at $11 million (equivalent to $67.7 million in 2022[14]).[49]

The interchange between I-37 and I-69E/US 77

The rural sections of the freeway were completed later than those in the urban areas. Construction of the highway in Corpus Christi and Nueces County continued north over the Nueces River into San Patrico County. The interchange at US 77 (future I-69E) was completed in 1969.[50] The road that was already in existence along this stretch, SH 9, would be utilized as a frontage road as many of the bridges along this stretch were from when SH 9 was built in the 1930s.[51][52] The mainlanes were extended northward to SH 234 in 1969.[53] By 1970, the freeway had been extended as far north as SH 188.[54] In 1971, I-37 reached Farm to Market Road 888 (FM 888) and service to the city of Mathis.[55] During the mid-1970s, the southern section and northern section were both being extended. The southern section was extended northward in Live Oak County to US 59 (future I-69W) in 1975 and FM 799 in 1976.[56][57] The northern section saw completion in Atascosa County to FM 541 in 1975 and FM 1099 in 1976.[58][59] By the early 1980s, the freeway was nearly complete. In 1980, the interchange at US 281 southeast of Pleasanton was complete.[60] With the completion of the interchange at SH 72 and other bridges in the Pleasanton area in 1981, I-37 was complete.[61][62]

Exit list

CountyLocationmikmExit[63]DestinationsNotes
NuecesCorpus Christi0.000.00Mesquite StreetAt-grade intersection
0.320.510

 US 181 north / SH 35 north – Portland		Southbound exit and northbound entrance
0.440.711ABuffalo StreetSouthbound exit and northbound entrance
1.101.771BBrownlee Boulevard, Port AvenueNorthbound exit and southbound entrance
0.99–
1.33		1.59–
2.14		1C
 SH 286 south (Crosstown Expressway)		Access to Spohn Memorial Hospital
1.462.351DPort AvenueSouthbound exit and northbound entrance
2.12–
2.54		3.41–
4.09		1ELawrence Drive, Nueces Bay Boulevard
3.275.262Up River Road
3.926.313ANavigation Boulevard
4.457.163BMcBride Lane, Lantana StreetNorthbound exit and southbound entrance
4.787.694A

 SH 44 west / SH 358 east – NAS Corpus Christi, Padre Island
4.967.984BLantana Street, McBride LaneSouthbound exit and northbound entrance
5.829.375Corn Products Road / Valero Way
7.0111.286Southern Minerals Road
8.31–
8.55		13.37–
13.76		7Tuloso Road, Suntide Road
10.1516.339 FM 2292 (Rand Morgan Road) / Up River Road
11.2318.0710Carbon Plant Road/Joe Fulton Int'l Trade CorridorSouthbound exit leads to Carbon Plant Road
11.3418.2510AJoe Fulton Int'l Trade Corridorsouthbound exit; northbound exit is part of exit 10
11.9519.2311A FM 3386 (McKinzie Road)
12.5920.2611B FM 24 (Violet Road) / Hart Road
13.8922.3513A FM 1694 (Callicoatte Road) / Leopard Street
14.6623.5913BSharpsburg RoadNorthbound exit and southbound entrance
15.2224.4914A

 I-69E south / US 77 south – Kingsville, Robstown, Brownsville		South end of US 77 overlap; current northern end of I-69E, signed as exit 14 southbound; access to Corpus Christi Medical Center-Northwest
15.4724.9014BRed Bird LaneNorthbound exit and southbound entrance
15.9625.6915Sharpsburg Road, Red Bird LaneSouthbound exit and northbound entrance
17.0127.3716Labonte Park
San Patricio​18.0429.0317


 Future I-69E north / US 77 north – Victoria, Sinton		North end of US 77 overlap; US 77 is the future Interstate 69E
​20.4632.9320APicnic Area
​21.4734.5520BCooper Road
Edroy23.42–
23.94		37.69–
38.53		22 SH 234 / FM 796 – Edroy, Odem
​31.7551.1031 SH 188 – Sinton, Rockport
Mathis35.2156.6734 Spur 459 – Mathis, Alice
36.8359.2736 SH 359 – Skidmore, Mathis
Live Oak​41.0566.0640 FM 888
​47.8877.0647 FM 534 / FM 3024 – Swinney Switch
​51.8783.4851Hailey Ranch Road
​57.1792.0156 US 59 (Future I-69W) – George West, BeevilleUS 59 is the future Interstate 69W
​60.4197.2259 FM 799
​66.43106.9165 FM 1358 – Oakville
​69.88112.4669 SH 72 – Three Rivers, Kenedy
​73.55118.3772
 US 281 south – Three Rivers, Alice		South end of US 281 overlap
​77.40124.5676
 US 281 Alt. / FM 2049 – Whitsett
​84.19135.4983 FM 99 – Whitsett, Karnes City
Atascosa​89.52144.0788 FM 1099 – Campbellton
​93.31150.1792
 US 281 Alt. – Campbellton, Whitsett		Southbound exit and northbound entrance
​99.09159.4798 FM 541 – McCoy, Poth
​104.85168.74103
 US 281 north – Pleasanton		North end of US 281 overlap; northbound exit and southbound entrance
​105.32169.50104 Spur 199 (Leal Road)No southbound entrance
​107.34172.75106Coughran Road
​110.73178.20109 SH 97 – Pleasanton, Floresville
​114.73184.64113 FM 3006
​118.48190.68117 FM 536
Bexar​120.97194.68120Hardy Road
​123.64198.98122Priest Road/Mathis Road
​126.40203.42125 Loop 1604 (Anderson Loop) – Elmendorf
​127.55205.27127San Antonio River TurnaroundNorthbound exit and southbound entrance
San Antonio131.04210.89130Southton Road, Donop Road
132.88213.85132 Spur 122Northbound exit and southbound entrance
133.60215.01132
 US 181 south – Floresville		Southbound exit and northbound entrance
134.70216.78133
 I-410 (Connally Loop) / SH 130 / US 281 south		South end of US 281 overlap; I-410 exit 41
136.47219.63135 Loop 13 (Military Drive) – Brooks City-BaseAccess to Stinson Municipal Airport and Mission Trail Baptist Hospital
137.62221.48136Pecan Valley Drive
138.34222.64137Hot Wells Boulevard
138.98–
139.14		223.67–
223.92		138New Braunfels Avenue, Southcross BoulevardSigned as exits 138A (east) and 138B (west) southbound
139.84225.05138CFair Avenue, Hackberry Street
140.77226.55139 I-10 (Jose Lopez Freeway) / US 87 / US 90 – El Paso, Houston, Victoria, Del RioI-10 exit 575A
141.53–
141.61		227.77–
227.90		140AFlorida Street, Carolina Street
142.13228.74140BCesar Chavez Boulevard – Alamodome
142.69229.64141ACommerce Street – Downtown San AntonioSigned as exit 141 northbound
142.90229.98141BHouston Street – The AlamoSouthbound exit and northbound entrance
143.23230.51141CMcCullough Avenue, Nolan StreetSouthbound exit and northbound entrance
143.91231.60142 I-35 (Pan Am Expressway) – Austin, Laredo

 US 281 north (McAllister Freeway) – Johnson City, San Antonio International Airport		Signed as exits 142A (north) and 142B (south); I-35 exit 158; northern terminus; roadway continues beyond I-35 as US 281
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

Notes

  1. ↑ Some sources use "IH-37", as "IH" is an abbreviation used by TxDOT for Interstate Highways.[3]

References

  1. ↑ Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved November 20, 2023.
  2. 1 2 3 Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 37". Highway Designation Files. Texas Department of Transportation. Retrieved February 27, 2008.
  3. ↑ Transportation Planning and Programming Division (n.d.). "Highway Designations Glossary". Texas Department of Transportation. Retrieved May 20, 2020.
  4. 1 2 Beaumont, Penny; Brinkmann, Rhonda; Ellis, David; Pourteau, Chris; Webb, Brandon V. (2006). From Anywhere to Everywhere: The Development of the Interstate Highway System in Texas (PDF) (Report). Texas Transportation Institute. p. 32. Archived from the original (PDF) on January 7, 2008. Retrieved February 25, 2008.
  5. ↑ Google (April 20, 2013). "East of I-37 in Corpus Christi" (Map). Google Maps. Google. Retrieved April 20, 2013.
  6. ↑ "Maps & Data". Texas Natural Resources Information System. 2012. Archived from the original (ESRI shapefile) on May 30, 2013. Retrieved April 20, 2013.
  7. 1 2 3 4 Google (February 25, 2008). "Overview map of I-37" (Map). Google Maps. Google. Retrieved February 25, 2008.
  8. ↑ Staff. "Lucian Adams". Texas State Cemetery. Retrieved February 27, 2008.
  9. ↑ "Signs designating William J. Bordelon Expressway unveiled". Central Catholic High School. September 14, 2009. Archived from the original on September 12, 2011. Retrieved April 9, 2011.
  10. ↑ Leatherwood, Art. "Bordelon, William James". Handbook of Texas Online. Texas State Historical Association. Archived from the original on January 29, 2012. Retrieved April 9, 2011.
  11. ↑ Transportation Planning and Programming Division (n.d.). "State Highway No. 9". Highway Designation Files. Texas Department of Transportation. Retrieved February 27, 2008.
  12. ↑ Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 536". Highway Designation Files. Texas Department of Transportation. Retrieved March 8, 2008.
  13. ↑ Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 537". Highway Designation Files. Texas Department of Transportation. Retrieved March 8, 2008.
  14. 1 2 Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the Measuring Worth series.
  15. ↑ "SA Project Top Single Road Job". Austin Statesman. April 2, 1965. ProQuest 1521826279. (subscription required)
  16. ↑ Staff. "Staples Street overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  17. ↑ Staff. "Brownlee Street overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  18. ↑ Staff. "SH 286 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  19. ↑ Staff. "Port Avenue overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  20. ↑ Google (April 7, 2008). "Southern terminus to Port Avenue" (Map). Google Maps. Google. Retrieved April 7, 2008.
  21. ↑ Staff. "Nueces Bay Boulevard overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  22. ↑ Staff. "Buddy Lawrence Boulevard overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  23. ↑ Google (April 7, 2008). "Port Avenue to Buddy Lawrence Boulevard" (Map). Google Maps. Google. Retrieved April 7, 2008.
  24. ↑ Staff. "Navigation Boulevard overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  25. ↑ Google (April 7, 2008). "Buddy Lawrence Boulevard to Navigation Boulevard" (Map). Google Maps. Google. Retrieved April 7, 2008.
  26. ↑ Staff. "SH 358 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  27. ↑ Staff. "Corn Products Road overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  28. ↑ Google (April 7, 2008). "SH 358 to Corn Products Road" (Map). Google Maps. Google. Retrieved April 7, 2008.
  29. ↑ Staff. "Callicoatte Road overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  30. ↑ Google (April 7, 2008). "Corn Products Road to Callicoatte Road" (Map). Google Maps. Google. Retrieved April 7, 2008.
  31. ↑ Staff. "Southbound Nueces River bridge". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  32. ↑ Transportation Planning and Programming Division (n.d.). "U.S. Highway No. 77". Highway Designation Files. Texas Department of Transportation. Retrieved February 29, 2008.
  33. ↑ Staff. "Northbound Nueces River bridge". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  34. ↑ Staff. "US 181 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  35. ↑ Staff. "Steves Avenue overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  36. ↑ Staff. "Florida Street overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  37. ↑ Staff. "I-10 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  38. ↑ staff. "Loop 1604 overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  39. ↑ Staff. "Goliad Road overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  40. ↑ Staff. "Pecan Valley Drive overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  41. ↑ Staff. "Fair Avenue overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  42. ↑ Staff. "Hackberry Street overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  43. ↑ Staff. "I-410 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  44. ↑ Staff. "Loop 13 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  45. ↑ Staff. "Durango Boulevard overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  46. ↑ Staff. "Commerce Street overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  47. ↑ Staff. "Houston Street to Jones Avenue overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  48. ↑ Staff. "IH 35 & IH 37 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  49. ↑ Kelly, Frank G. (June 1971). "Where the Freeways Meet". Texas Highways. Archived from the original on May 13, 2008. Retrieved February 27, 2008.
  50. ↑ Staff. "US 77 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  51. ↑ "Arroyo Nombre de Dios Bridge". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  52. ↑ Staff. "SH 234 frontage overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  53. ↑ Staff. "SH 234 overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  54. ↑ Staff. "SH 188 overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  55. ↑ Staff. "FM 888 overpass". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  56. ↑ Staff. "US 59 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  57. ↑ Staff. "FM 799 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  58. ↑ Staff. "FM 541 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  59. ↑ Staff. "FM 1099 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  60. ↑ Staff. "US 281 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  61. ↑ Staff. "SH 72 interchange". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  62. ↑ Staff. "Rock Quarry Branch Bridge". National Bridge Inventory. Federal Highway Administration. Retrieved February 29, 2008.
  63. ↑ Transportation Planning and Programming Division (2013). Statewide Planning Map (Map). Texas Department of Transportation. Archived from the original on April 1, 2013. Retrieved April 5, 2013.
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