List of highways in Harris County, Texas

The state highways in Harris County, Texas consists of approximately 1,213 miles (1,952 km) of routes in the Texas state highway system that are located within Harris County.[1] These highways are maintained by the Texas Department of Transportation (TxDOT). These highways are made up of Interstate Highways, U.S. Highways, State Highways, State Loop and Spur Highways, Farm to Market Roads, Park Highways, and Alternate and Business Routes. In addition to these highways, three independent Toll Roads and a section of Interstate 10 that is toll managed are also located in Harris County. These roads are maintained by the Harris County Toll Road Authority, and add approximately 120 miles (190 km) of highways to the overall Harris County highway system.[2]

Harris County's location within the state of Texas
System information
Length1,212.797 mi (1,951.808 km)
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
Other roads:Park Road X (PR X)
Farm-to-Market Road X (FM X)
Ranch-to-Market Road X (RM X)
System links

There are four interstates located within Harris County. They consist of three major interstates (Interstate 10 (I-10), known as the Katy Freeway and the East Freeway, Interstate 45 (I-45), known as the Gulf Freeway and the North Freeway, and Interstate 69 (I-69), known as the Southwest Freeway and the Eastex Freeway) and one Auxiliary Interstate (Interstate 610 (I-610), known as "The Loop"). There are also three U.S. Routes located in Harris County. These highways consist of U.S. Route 59 (US 59, known as the Southwest Freeway and the Eastex Freeway), U.S. Route 90 (US 90, known as the Crosby Freeway), and U.S. Route 290 (US 290, known as the Northwest Freeway). There are nine state highways, eight spur and loop highways, one park highway, six toll roads (five independent), twenty-two farm to market roads, four bannered U.S. routes, two bannered state routes, and one bannered farm to market road.

Highways

Interstate Highways and U.S. Highways
The short concurrency between I-10/US 90 and I-45

There are four interstate highways located in Harris County. These interstates are I-10, which runs west–east, I-45, which runs south–north, I-69, which also runs south-north, and I-610, which forms a small loop around Downtown Houston.[3][4] I-10 and I-45 run concurrently with each other for a short distance in Downtown Houston. I-10 was created in 1959, with the establishment the Interstate Highway System;[5] I-45 was created in 1971;[6] the first segment of I-69 (concurrent with US 59) was created on July 26, 2012, the second segment (also concurrent with US 59) was created on February 28, 2013, the third and final segment (like the previous two segments is concurrent with US 59 as well) was created on March 25, 2015, when it is fully complete the mainline of I-69 will run from the U.S.–Mexico border in Brownsville to the U.S.–Canada border in Port Huron, MI;[7] I-610 was created in 1959, with the establishment of the Interstate Highway System.[8]

In addition to the four interstate highways, there are also three U.S. Routes. These highways are US 59, which forms the Southwest and Eastex Freeways, and runs southwest-northeast, US 90, which runs concurrently with I-10 from the west county border to I-610, where it becomes the Cosby Freeway, running in a west–east direction, and US 290, which forms the Northwest Freeway, running southeast-northwest.[9][10]

State Highways, Loops, Spurs, and Park Roads
State Beltway 8

There are currently nine state highways located in Harris County. The longest of these is Texas State Highway 6, which stretches approximately 36.8 miles (59.2 km) from the Fort Bend County line to the Waller County line.[9][10][11] The shortest of these is Texas State Highway 35, which stretches approximately 6 miles (9.7 km) from the Fort Bend County line to Interstate 45 in south Houston.[12] NASA Road 1 is also located in Harris County, and is one of just two state highways in Texas that is not numbered. The other highway is State Highway OSR.[13]

There are currently only one loop highway in Harris County, Texas State Highway Loop 494, which has its south end at I-69 just south of the Harris-Montgomery county line, and Beltway 8, the state's only highway designated as a beltway, forms a large loop around most of Houston.[14] There are six spur routes located in Harris County. The longest is Texas State Highway Spur 261, at 4.6 miles (7.4 km) long.[15] The shortest spur is Texas State Highway Spur 330, at 0.8 miles (1.3 km).[16] There is currently one park road located in Harris County, Texas Park Road 1836.[17] Park Road 1836 serves the San Jacinto Battleground State Historic Site and Battleship Texas. The highway is numbered 1836 to commemorate Texas's year of independence.[18] Park Road 1836 is 7.234 miles (11.642 km) long.[18]

Farm to Market Roads

There are currently twenty-two farm to market roads located in Harris County. Due to the heavy urbanization of Harris County, many of these FM's have been redesignated to Urban Roads under the TxDOT standards, but are still officially signed as Farm to Market Roads.[19] The length of these Farm to Market Roads varies from approximately 37 miles (60 km) long (FM 1960) to just 0.2 miles (0.32 km) (FM 1092).[20]

Toll Roads
A sign for the Beltway 8 Toll bridge

There are seven toll roads located in Harris County. Three of these toll roads are independent toll roads. These consist of the Hardy Toll Road, the Westpark Tollway, and the Fort Bend Toll Parkway. The other four toll roads are state-maintained highways that have been converted to toll highways. These are the Sam Houston Tollway (Beltway 8), the Tomball Tollway (Texas State Highway 249), the Katy Managed Lanes, which is a section of Interstate 10 located between Katy and downtown Houston, and the Grand Parkway (Texas State Highway 99) which is under construction.[2] All toll roads are maintained by the Harris County Toll Road Authority, and are marked with a purple and yellow version of the county highway shield.[2]

Interstate Highways
Route Name Direction Termini Junctions Length[3][4] Remarks References
mi km
I-10 E–W Chambers County to Fort Bend County SH 146
Beltway 8
I-610
I-69/US 59
I-45
SH 6
SH 99		 56 90 East of I-45 known locally as East Freeway; west of I-45 known locally as Katy Freeway [5][9][17][21][22]
I-45 S–N Galveston County to Montgomery County NASA Road 1
Beltway 8
SH 3
I-610
I-69/US 59
I-10/US 90
SH 249
SH 99
Hardy Toll Road		 45 72 South of I-69/US 59 known locally as Gulf Freeway; portion between I-69/US 59 and I-10/US 90 known locally as Pierce Elevated; north of I-10/US 90 known locally as North Freeway [6][9][10][23]
I-69 S–N Fort Bend County to Montgomery County Beltway 8
Westpark Tollway
I-610
SH 288
I-45
I-10/US 90		 34 55 Co-signed with US 59; south of SH 288 known locally as Southwest Freeway; north of SH 288 known locally as Eastex Freeway [7][9][10][21][24]
I-610 Orbital Officially designated from I-10 east of downtown Houston, going counterclockwise US 90
Hardy Toll Road
I-45
US 290
I-10
I-69/US 59
Alternate US 90
SH 288
SH 35
SH 225		 37.972 61.110 Known locally as "The Loop" [8][9][25]

U.S. Highways
Route Name Direction Termini Junctions Length[3][4] Remarks References
mi km
US 59 S–N Fort Bend County to Montgomery County Beltway 8
Westpark Tollway
I-610
SH 288
I-45
I-10/US 90		 34 55 Co-signed with I-69; south of SH 288 known locally as Southwest Freeway; north of SH 288 known locally as Eastex Freeway [9][10][21][26][27]
US 90 E–W Liberty County to I-10 FM 2100
Beltway 8		 13.5 21.7 Freeway portion from Crosby to I-610 known locally as Crosby Freeway; known locally as Beaumont Highway; officially US 90 follows I-10 after junction, but it is unsigned; US 90 signage restarts in Katy [9][17][21][28][29][30]

Alt. US 90		 N–S I-10 to Fort Bend County I-45
SH 288
I-610
Fort Bend Parkway Toll Road
Beltway 8		 20 32 Known locally as South Wayside Drive north of I-45, Old Spanish Trail between I-45 and Main Street west of SH 288, and South Main Street to Fort Bend County Line; US 90A south of I-610 is a limited-access parkway [9][28][31]

Bus. US 90		 W–E I-610 to US 90 /FM 2100 Beltway 8 8.0 12.9 Business route from Houston to Crosby [9][29][32][33]
US 290 E–W I-610 to Waller County Beltway 8
SH 6		 33 53 Known locally as Northwest Freeway [9][10][34][35][36]

Bus. US 290		 W–E Waller County to US 290 / SH 6 FM 2920 17 27 Business route through Hempstead, Prairie View, and Waller; former routing of US 290 [34][37][38]

Bus. US 290		 W–E US 290 / SH 6 to US 290 / SH 6 SH 6 1.2 1.9 Business route through Cypress [10][39][40]

State Highways
Route Name Direction Termini Junctions Length[3][4] Remarks References
mi km
SH 3[41] S–N Galveston County to I-45 NASA Road 1
Beltway 8		 8 13 Known locally as Old Galveston Road
SH 6 S–N Fort Bend County to Waller County Westpark Tollway
FM 1093
US 290
FM 1960		 30 48 Overlaps US 290 after its junction, which it follows out of the county [9][10][34][42][43]
SH 35[44] N–S I-45 to Brazoria County Beltway 8 6 9.7 Signage begins at I-45/I-610 Junction; known locally as Reveille Street between I-610 and Telephone Road, and known as Telephone Road from just north of Sims Bayou to Brazoria County
Spur 5[44] N–S I-45 to Brazoria County Beltway 8 6 9.7 Future State Highway 35, Spur 5 begins at an onramp located at Jefferson and Dowling streets (where a State Highway 35 sign is visible), and is unsigned on the upper deck of I-45 until it exits at Calhoun; spur ends at US Alternate 90 (Old Spanish Trail).
SH 99 Segment D[45] S–N I-69/US 59 (in Fort Bend County) to I-10/US 90 in Katy Westpark Tollway (in Fort Bend County)
FM 1093 (in Fort Bend County)
 17.4 28.0 SH 99 is the toll-free frontage roads of the Grand Parkway.
SH 99 Segment E[45] S–N I-10/US 90 in Katy to US-290/SH 6 in Hockley
FM 529
 15.4 24.8 SH 99 is the toll-free frontage roads of the Grand Parkway.
SH 99 Segment F-1[45] S–N & W–E US-290/SH 6 in Hockley to SH 249 No major junctions
SH 99 Segment F-2[45] W–E SH 249 to I-45
FM 2920
SH 99 Segment G[45] W–E I-45 to I-69/US 59 (in Montgomery County)
Hardy Toll Road
SH 99 Segment I-2[45] S–N Bus. SH 146-E in Baytown (temporary) to I-10 near Mont Belvieu (in Chambers County) I-10 (in Chambers County) 14 23 SH 99 is the toll-free frontage roads of the Grand Parkway.
SH 146[46] S–N Galveston County to Chambers County NASA Road 1
SH 225
I-10		 16 26 Known in Baytown as Bob Lanier Freeway; bridge over the Houston Ship Channel called the Fred Hartman Bridge

Bus. SH 146[47]		 S–N SH 146 to Broadway Street Spur 501 1.8 2.9 Business route to La Porte

Bus. SH 146[48]		 S–N SH 146 to SH 146 SH 99 (temporary)
SH 146		 6.3 10.1 Business route through Baytown
SH 225[49] E–W SH 146 to just west of I-610 Beltway 8
I-610		 15.6 25.1 Known in Houston as La Porte Freeway and in Pasadena as Pasadena Freeway
SH 249[50] S–N I-45 to Montgomery County Beltway 8
FM 1960		 22 35 Portion from Beltway 8 to just south of Tomball is a freeway; highway and freeway may possibly be expanded to SH 6 in Navasota.[51]
SH 288[52] N–S I-45 to Brazoria County I-69/US 59
US 90 Alt.
I-610
Beltway 8		 11 18 Known locally as South Freeway

State Highway Loops and Spurs
Route Name Direction Termini Junctions Length[3][4] Remarks
mi km
SH NASA Road 1[53] W–E I-45 / FM 528 to SH 146 SH 3
FM 270		 7.5 12.1 Main route to NASA's Lyndon B. Johnson Space Center
Beltway 8[14] Orbital Officially designated from I-45 north of downtown Houston, going clockwise Hardy Toll Road
I-69/US 59
US 90
I-10
SH 225
SH 3
I-45
SH 35
SH 288
US 90 Alt.
Westpark Tollway
FM 1093
US 290
SH 249		 83.128 133.782 Secondary loop of metro Houston, with a radius from downtown Houston of about 8 miles (13 km); main lanes are part of the Sam Houston Tollway while Beltway 8 comprises the service lanes; section between I-45 and I-69/US 59 is a freeway
Spur 5[54] N–S Dowling Street in downtown Houston to US 90 Alt. I-45 2.929 4.714 Runs concurrent with I-45 from south of downtown to exit 44B; freeway grade from Downling Street to University Drive; proposed future corridor for a new SH 35 freeway
Spur 261[15] N–S I-45 to I-610 No major junctions 4.611 7.421 Known locally as North Shepherd Drive
Spur 330[16] S–N Garth Road in Baytown to I-10 SH 146 0.863 1.389 Short freeway-grade connector serving Baytown; known locally as Decker Drive
Spur 501[55] S–N Bayport Ship Channel to Bus. SH 146-D No major junctions 1.5 2.4  
Spur 527[56] S–N I-69/US 59 to Westheimer Road in Houston No major junctions 0.8 1.3 Short freeway-grade connector serving Midtown neighborhood
Spur 548[57] S–N I-610 to Hardy Toll Road Sam Houston Tollway 1.5 2.4 Unsigned, part of Hardy Toll Road

State Park Roads
Route Name Direction Termini Junctions Length[3][4] Remarks
mi km
PR 1836[18] S–N Battleground Rd. to San Jacinto Battleground State Historic Site San Jacinto Battleground State Historic Site 7.2 11.6 With state designation canceled over Battleground Rd. (formerly SH 134), PR 1836 no longer connects to rest of state highway system; formally PR 9

Toll Roads

All Harris County toll roads are maintained by the Harris County Toll Road Authority.

Route Name Direction Termini Junctions Length[3][4] Remarks
mi km
Sam Houston Tollway[2] Orbital Middle Loop around Houston SH 225
SH 3
I-45
SH 35
SH 288
Fort Bend Parkway Toll Road
US 90 Alt.
I-69/US 59
Westpark Tollway
I-10
US 90
US 290
SH 249		 83.128 133.782 Main lane portion of Beltway 8 secondary loop; the remaining portion of the loop is free
Hardy Toll Road[2] S–N I-610 to I-45 Beltway 8
FM 1960
SH 99		 21.6 34.8 Runs parallel to I-45; possible future expansion south to I-10
Tomball Tollway[2] S–N Spring-Cypress Road to FM 2920 SH 99 6 9.7 Main lane portion of SH 249; will be extended north into Montgomery County and Grimes County as well as into Bryan-College Station in Brazos County; locally known as Aggie Expressway north of Tomball
Westpark Tollway[2] E–W Westpark Drive in Houston to Fort Bend County I-69/US 59
Beltway 8
SH 6
 14 23 Runs parallel to Westheimer Road (FM 1093); possible future expansion east to I-610
Fort Bend Parkway[58] E–W US 90 Alt. to Fort Bend County Beltway 8 6.2 10.0 Runs along Hillcroft Avenue; possible future expansion north to I-610; formerly part of SH 122 project
SH 99 Toll (Grand Parkway) Segment D* S–N I-69/US 59 (in Fort Bend County) to I-10/US 90 in Katy Westpark Tollway (in Fort Bend County)
FM 1093 (in Fort Bend County)		 17.4 28.0 The Grand Parkway is the main lane portion of SH 99 that is currently under construction as the third freeway-grade loop around Greater Houston; opened in 1994. *Mostly free, with only overpasses between FM 1093 and I-69/US 59 tolled.
SH 99 Toll (Grand Parkway) Segment E S–N I-10/US 90 in Katy to US-290/SH 6 in Hockley FM 529 15.4 24.8 The Grand Parkway is the main lane portion of SH 99 that is currently under construction as the third freeway-grade loop around Greater Houston; opened in 2013, electronic tolling using Tx-Tag, TollTag or EZ-Tag.
SH 99 Toll (Grand Parkway) Segment F-1 S–N & W–E US-290/SH 6 in Hockley to SH 249 No major junctions
SH 99 Toll (Grand Parkway) Segment F-2 W–E SH 249 to I-45 FM 2920
SH 99 Toll (Grand Parkway) Segment G W–E I-45 to I-69/US 59 (in Montgomery County) Hardy Toll Road
SH 99 Toll (Grand Parkway) Segment I-2 S–N Bus. SH 146-E in Baytown (temporary) to I-10 near Mont Belvieu (in Chambers County) I-10 (in Chambers County) 14 23 The Grand Parkway is the main lane portion of SH 99 that is currently under construction as the third freeway-grade loop around Greater Houston; phase I of this segment opened in 2008, electronic tolling using Tx-Tag, TollTag or EZ-Tag; phase II in planning stages, planned to be tolled.

Farm and Ranch to Market Roads
Route Name Direction Termini Junctions Length[3][4] Remarks
mi km
FM 270[59] N–S NASA Road 1 to Galveston County No major junctions 0.3 0.48 Known locally as Egret Bay Boulevard
FM 362[60] W–E Waller County back to Waller County No major junctions 0.6 0.97 Concurrent with FM 1488 in very northwest corner of county
FM 521[61] S–N US 90 Alt. to Brazoria County Beltway 8
I-610		 6.3 10.1 Known locally as Almeda Rd.
FM 525[62] E–W I-69/US 59 to I-45 Hardy Toll Road 7.054 11.352 Known locally as Aldine-Bender Road
FM 526[63] S–N I-10 to Bus. US 90-U US 90 4.625 7.443 Known locally as Maxie Road
FM 528[64] E–W I-45 / NASA Road 1 to Brazoria County No major junctions 0.5 0.80[note 1] Known locally as Friendswood Boulevard
FM 529[65] E–W US 290 to Waller County SH 6
SH 99		 17 27.4[note 1] Sometimes referred to as Spencer Boulevard
FM 865[66] N–S US 90 Alt. to Brazoria County I-610
Beltway 8		 9.5 15.3[note 1] Known locally as Cullen Boulevard
FM 1092[67] N–S I-69/US 59 to Fort Bend County No major junctions 0.2 0.32[note 1] Known locally as Murphy Road
FM 1093[68] E–W I-610 to Fort Bend County Beltway 8
SH 6		 13.9 22.4[note 1] A section of FM 1093 is also a section of Westheimer Road
FM 1485[69] E–W Montgomery County to Huffman Cleveland Road No major junctions 1.1 1.8  
FM 1488[70] W–E Waller County back to Waller County No major junctions 0.6 0.97 Concurrent with FM 362 in very northwest corner of county
FM 1736[71] N–S Waller County back to Waller County No major junctions 0.5 0.80 Runs in very northwest corner of county
FM 1876[72] N–S Bellaire Boulevard in Alief to Fort Bend County No major junctions 2.2 3.5 Known locally as Synott Road
FM 1942[73] E–W Chambers County to US 90 No major junctions 8.4 13.5 Known locally as Crosby-Cedar Bayou Road
FM 1959[74] W–E I-45 to SH 3 No major junctions 1.339 2.155 Known locally as Dixie Farm to Market Road
FM 1960[75] W–E US 290 to Liberty County SH 249
I-45
Hardy Toll Road
I-69/US 59		 39 62.8[note 1] Long thoroughfare through northern suburbs of Houston
Bus. FM 1960-A[76] W–E FM 1960 to FM 1960 I-69/US 59 4.124 6.637 Business route through Humble
FM 2100[77] S–N US 90 to FM 1485 FM 1960
US 90 (Crosby Freeway)
Bus. US 90-U		 14.285 22.989 Known locally as Crosby-Huffman Road
FM 2351[78] W–E Galveston County to SH 3 I-45 1 1.6[note 1] Known locally as Edgewood Drive
FM 2553[79] W–E I-45 to SH 3 No major junctions 1.152 1.854 Known locally as Scarsdale Boulevard
FM 2920[80] W–E Bus. US 290 to I-45 US 290/SH 6
SH 249
FM 2978		 30.849 49.647 Sometimes referred to as Waller-Tomball Road
FM 2978[81] S–N FM 2920 to Montgomery County No major junctions 3.5 5.6[note 1] Known locally as Huffsmith-Conroe Road
  1. This length is approximate.

Adjacent counties

See also
  •  Texas portal
  •  U.S. Roads portal

References
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  55. Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 501". Highway Designation Files. Texas Department of Transportation.
  56. Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 527". Highway Designation Files. Texas Department of Transportation.
  57. Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 548". Highway Designation Files. Texas Department of Transportation.
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  59. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 270". Highway Designation Files. Texas Department of Transportation.
  60. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 362". Highway Designation Files. Texas Department of Transportation.
  61. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 521". Highway Designation Files. Texas Department of Transportation.
  62. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 525". Highway Designation Files. Texas Department of Transportation.
  63. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 526". Highway Designation Files. Texas Department of Transportation.
  64. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 528". Highway Designation Files. Texas Department of Transportation.
  65. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 529". Highway Designation Files. Texas Department of Transportation.
  66. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 865". Highway Designation Files. Texas Department of Transportation.
  67. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1092". Highway Designation Files. Texas Department of Transportation.
  68. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1093". Highway Designation Files. Texas Department of Transportation.
  69. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1485". Highway Designation Files. Texas Department of Transportation.
  70. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1488". Highway Designation Files. Texas Department of Transportation.
  71. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1736". Highway Designation Files. Texas Department of Transportation.
  72. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1876". Highway Designation Files. Texas Department of Transportation.
  73. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1942". Highway Designation Files. Texas Department of Transportation.
  74. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1959". Highway Designation Files. Texas Department of Transportation.
  75. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1960". Highway Designation Files. Texas Department of Transportation.
  76. Texas Department of Transportation. "Highway Designation File - Business Farm to Market Road No. 1960-A. Retrieved 2009-12-27.
  77. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 2100". Highway Designation Files. Texas Department of Transportation.
  78. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 2351". Highway Designation Files. Texas Department of Transportation.
  79. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 2553". Highway Designation Files. Texas Department of Transportation.
  80. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 2920". Highway Designation Files. Texas Department of Transportation.
  81. Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 2978". Highway Designation Files. Texas Department of Transportation.
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