Texas Road Map

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Explore the Texas highway map showing state highways and interstate highwyas with major cities and state capital Austin.

List of Interstate Highways in texas

Primary Interstate Highways

highway Number	Formed in	Length in mi	Length in km
I-2	2013	46.8	75.3
I-10	1959	877.455	1,412.13
I-14	2017	25.9	41.68
I-20	1959	634.723	1,021.49
I-27	1968	124.182	199.852
I-30	1959	223.404	359.534
I-35	1959	407.195	655.317
I-35E	1959	96.657	155.554
I-35W	1959	85.283	137.25
I-37	1959	142.787	229.793
I-40	1959	177.139	285.078
I-44	1982	15.398	24.781
I-45	1959	284.913	458.523
I-49	proposed	2	3.2
I-69	2011	74.9	120.5
I-69C	2013	18	29
I-69E	2013	81	130
I-69W	2014	1.4	2.3

Auxiliary Interstate Highways

Highway Number	Formed in	Length in mi	Length in km
I-110	1967	0.89	1.43
I-169	2015	1.50	2.40
I-345	1964	1.40	2.25
I-369	2013	3.50	5.60
I-410	1959	49.49	79.64
I-610	1959	37.97	61.11
I-635	1959	37.00	59.54
I-820	1959	35.17	56.61

Business Interstate Highways

Highway Number	Formed	Length in mi	Length in km
I-10 BL	1990	2.75	4.42
I-10 BL	1990	2.88	4.64
I-10 BL	1991	2.00	3.22
I-10 BL	1991	1.40	2.25
I-20 BL	1991	14.04	22.60
I-20 BL	1991	8.22	13.23
I-20 BL	1991	31.76	51.11
I-20 BL	1995	4.69	7.54
I-20 BL	1990	5.61	9.03
I-20 BL	1990	1.07	1.72
I-20 BL	1990	5.93	9.54
I-20 BL	1990	1.63	2.63
I-20 BS	1990	1.64	2.65
I-20 BL	1990	6.45	10.38
I-20 BL	1990	2.08	3.34
I-20 BL	1990	2.79	4.48
I-20 BL	1990	1.66	2.67
I-20 BL	1990	8.47	13.63
I-20 BL	1990	2.83	4.55
I-27 BL	2002	1.17	1.88
I-27 BL	1990	9.28	14.94
I-35 BL	1991	3.40	5.47
I-35 BL	1990	1.22	1.97
I-35 BL	1991	2.87	4.62
I-35 BL	1991	4.15	6.67
I-35 BL	1991	5.45	8.77
I-35 BL	1991	4.49	7.22
I-35 BL	1990	1.46	2.35
I-35 BL	1990	2.29	3.68
I-35 BL	1991	1.88	3.03
I-40 BL	1990	0.78	1.25
I-40 BL	1990	2.37	3.81
I-40 BL	1990	3.40	5.46
I-40 BL	1990	14.13	22.73
I-40 BL	1990	3.53	5.69
I-40 BL	1990	3.80	6.11
I-40 BL	1993	2.77	4.46
I-45 BL	1990	6.37	10.25
I-45 BL	1990	4.51	7.26
I-45 BL	1990	2.33	3.75
I-45 BL	1990	3.37	5.42

The Interstate Highway System in Texas represents one of the largest and most important road networks throughout the United States. The 3,200-mile network connects all major Texas cities while providing essential transportation routes for both national and local travel. The system consists of twelve primary two-digit Interstates together with multiple auxiliary routes and independent routes I‑35E and I‑35W that serve Dallas and Fort Worth separately. The state of Texas continues to develop I‑69 as part of a national trade route through segment-by-segment construction.

Historical Background

The development of modern highways received its main impetus from Texas. The construction of urban expressways in Texas began before the establishment of the national Interstate system in 1956. The Gulf Freeway which opened in 1951 between Galveston and Houston became the first major controlled-access highway in the state and later received I‑45 designation. The first rural-to-urban Interstate segment became operational in 1962 when I‑35 opened its 43-mile stretch in Bexar County. The Interstate network in Texas reached completion during the early 1990s when I‑27 received its final major segment which connected Lubbock to Amarillo in 1992.

Network Structure and Route Composition

The Interstate network of Texas features major east-west highways I‑10 and I‑20 together with north-south routes I‑35 and I‑45. The longest Interstate highway in Texas extends 880 miles from New Mexico to Louisiana along I‑10. I‑45 runs as a single-state Interstate that connects Galveston to Dallas while being one of the few major Interstates that exist within a single state. I‑110 in El Paso stands as the shortest Interstate in Texas because it spans less than a mile between I‑10 and the U.S.-Mexico border.

Auxiliary Interstates function as essential components for urban transportation systems. The beltway and loop functions of I‑610 in Houston and I‑820 in Fort Worth and I‑635 in Dallas help control traffic congestion while offering routes that bypass central city traffic. The Texas highway system features distinctive split branches I‑35E and I‑35W which provide direct Interstate access to both Dallas and Fort Worth.

Notable Corridors and Projects

Texas has I‑10 as its most famous Interstate which passes through El Paso, San Antonio and Houston. The Katy Freeway segment in Houston holds the record for the world's widest freeway with its 26 lanes that include main lanes and feeder roads and managed HOV lanes. The rural sections of I‑10 west of San Antonio have speed limits reaching 80 mph which makes this stretch one of the fastest freeways in the United States.

The I-27 corridor functions as a vital yet shorter route which connects Lubbock to Amarillo. The Ports-to-Plains Corridor initiative now evaluates the expansion of this corridor which will eventually connect to Laredo in the south and New Mexico in the north. The I-69 corridor exists as an evolving transportation route which plans to link the Lower Rio Grande Valley with Houston and additional northern locations. The current active branches of I-69 include I-69E, I-69C and I-69W. The highway segments are being connected into a single continuous route which will function as a future trade route between Mexico and the Midwest region.

The "Forts to Ports" corridor I‑14 serves as a developing corridor which currently exists between Copperas Cove and Belton. The highway will extend its reach across central Texas to create a vital east-west connection between West Texas and Louisiana.

Design Innovations and Infrastructure Features

The Interstate highways of Texas stand out because of their efficient engineering design and their creative urban planning. The state's main characteristic is its continuous frontage roads which follow the path of most Interstates. The feeder roads serve three main purposes by giving local property owners access while decreasing main lane traffic and enabling faster emergency responses. The "Texas turnaround" represents a distinctive feature which includes U-turn lanes that either pass under or run beside overpasses at major intersections to enable smooth transitions between opposite frontage roads without needing stoplights.

Texas serves as a national model for highway infrastructure because of its fast travel speeds and wide network coverage and advanced access control systems. The introduction of high-occupancy vehicle (HOV) lanes and toll-managed lanes in major metropolitan areas including Houston, Dallas and San Antonio has improved peak hour traffic flow and promoted carpooling.

Administration and Funding

The Texas Department of Transportation (TxDOT) controls the development and construction and upkeep of the Interstate Highway System throughout the state. Major expansion and repair projects receive funding from federal sources but Texas uses state revenue and public-private partnerships to finance road improvements. The North Texas Tollway Authority and the Central Texas Regional Mobility Authority operate specific auxiliary roads and toll projects which support the Interstate framework.

TxDOT regularly updates its long-range transportation plans to handle rising urban populations and economic development and increased freight traffic. The future development of I‑69 and I‑27 strategic corridors remains a priority because they serve as vital routes for international trade and regional connectivity.

Economic and Strategic Importance

The Interstate Highway System in Texas functions as a vital economic component for the state. The system enables the transportation of goods between major industrial areas and agricultural regions and energy-producing zones. The ports of Houston and Laredo receive direct access from Interstates which allows for quick freight transportation to international trade centers. The highway system fulfills population growth by providing travel options while supporting tourism and enabling fast emergency responses during hurricanes and other natural disasters.

The network expansion continues to grow mainly through Texas-Mexico border development and West Texas expansion which demonstrates the state's position in North American trade. The routes have become essential infrastructure for future U.S. supply chain operations and national security needs.

List of US Highways in Texas

Mainline Highways

Highway Number	Formed in	Length in mi	Length in km
US 54	1927	111.60	179.60
US 57	1970	98.10	157.90
US 59	1935	622.74	1,002.20
US 60	1932	210.70	339.10
US 62	1932	404.80	651.50
US 67	1927	766.00	1,233.00
US 69	1935	338.60	544.90
US 70	1927	192.30	309.50
US 71	1927	2.90	4.70
US 75	1927	76.20	122.60
US 77	1927	471.30	758.50
US 79	1935	271.80	437.40
US 80	1927	155.30	249.90
US 81	1927	81.50	131.20
US 82	1935	504.70	812.20
US 83	1932	906.50	1,458.90
US 84	1935	530.40	853.60
US 85	1946	5.60	9.00
US 87	1935	801.10	1,289.20
US 90	1927	607.63	977.89
US 96	1939	133.70	215.20
US 175	1932	111.00	178.60
US 180	1943	298.00	479.60
US 181	1927	135.50	218.10
US 183	1939	426.00	685.60
US 190	1935	513.40	826.20
US 259	1962	146.10	235.10
US 271	1932	132.00	212.40
US 277	1932	396.50	638.10
US 281	1935	581.61	936.01
US 283	1932	150.40	242.00
US 285	1935	169.80	273.30
US 287	1934	503.80	810.80
US 290	1927	261.20	420.40
US 377	1932	335.00	539.10
US 380	1932	383.00	616.40
US 385	1927	441.00	709.70

Special Routes

Number	Formed	Length (mi)	Length (km)
Bus. US 54	1991	12.67	20.39
Bus. US 59	2021	13.90	22.37
Bus. US 59	1991	3.59	5.78
Bus. US 59	1991	6.64	10.69
Bus. US 59	1991	4.55	7.32
Bus. US 59	1991	6.70	10.78
Bus. US 59	1991	4.90	7.89
Bus. US 59	1991	4.59	7.39
Bus. US 59	1991	1.50	2.40
Bus. US 59	1998	3.59	5.78
Bus. US 59	1997	6.59	10.61
Bus. US 59	1995	13.76	22.14
Bus. US 59	1991	1.33	2.14
Bus. US 59	2014	3.53	5.69
Bus. US 67	1996	1.80	2.90
Bus. US 67	1996	4.35	7.00
Bus. US 67	1996	3.01	4.84
Bus. US 67	2001	4.60	7.40
Bus. US 67	1996	7.76	12.49
Bus. US 67	1991	1.20	1.93
Bus. US 67	1991	3.01	4.84
Bus. US 69	1991	0.97	1.56
Bus. US 69	1991	5.27	8.48
Bus. US 69	1991	3.79	6.10
US 77 Alt.	1953	91.00	146.45
Bus. US 77	1991	9.72	15.64
Bus. US 77	1991	2.92	4.70
Bus. US 77	2002	7.70	12.39
Bus. US 77	1991	4.45	7.16
Bus. US 77	1991	4.77	7.68
Bus. US 77	1991	13.58	21.85
Bus. US 77	1991	14.39	23.16
Bus. US 77	1991	14.92	24.01
Bus. US 77	1991	3.89	6.26
Bus. US 79	1991	2.58	4.15
Bus. US 79	1991	2.92	4.70
Bus. US 81	1991	2.31	3.72
Bus. US 81	1991	4.67	7.52
Bus. US 81	1991	1.77	2.85
Bus. US 82	2006	3.11	5.01
Bus. US 82	1991	5.15	8.29
Bus. US 82	2006	2.67	4.30
Bus. US 82	1991	0.81	1.30
Bus. US 83	1991	10.37	16.69
Bus. US 83	1991	1.06	1.71
Bus. US 83	1991	51.10	82.24
Bus. US 84	1991	3.93	6.32
Bus. US 84	1991	7.75	12.47
Bus. US 84	1991	3.04	4.89
Bus. US 84	1991	2.24	3.60
Bus. US 84	1991	2.10	3.38
Bus. US 87	1991	0.47	0.76
Bus. US 87	1991	1.75	2.82
Bus. US 87	2013	5.50	8.85
Bus. US 87	1991	2.12	3.41
US 90 Alt.	1942	175.30	282.10
Bus. US 90	1992	14.10	22.69
Bus. US 90	1991	6.12	9.85
Bus. US 96	1991	1.33	2.14
Bus. US 96	1991	5.22	8.40
Bus. US 175	1991	2.43	3.91
Bus. US 175	1991	2.94	4.73
Bus. US 175	2004	4.87	7.84
Bus. US 175	2019	1.00	1.60
Bus. US 181	1991	2.94	4.73
Bus. US 181	1991	1.40	2.25
Bus. US 181	1991	0.82	1.32
Bus. US 181	1991	2.63	4.23
Bus. US 181	1991	9.12	14.68
Bus. US 183	2006	3.30	5.31
Bus. US 183	1995	2.58	4.15
Bus. US 190	2010	4.50	7.24
Bus. US 190	1991	9.09	14.63
Bus. US 190	2010	2.30	3.70
Bus. US 259	2006	6.60	10.62
Bus. US 271	1991	4.90	7.89
Bus. US 271	1991	1.08	1.74
Bus. US 271	1991	1.60	2.57
Bus. US 271	1991	5.40	8.69
Bus. US 271	2016	1.80	2.90
Bus. US 277	1998	6.41	10.31
Bus. US 277	2006	3.50	5.63
Bus. US 277	2006	3.30	5.31
Bus. US 277	1991	2.00	3.22
Bus. US 277	2004	4.09	6.58
Bus. US 277	1991	1.35	2.18
Bus. US 277	1991	3.16	5.09
Bus. US 277	2007	1.86	3.00
US 281 Alt.	1982	16.70	26.90
Bus. US 281	1999	7.91	12.73
Bus. US 281	2004	1.84	2.96
Bus. US 281	1994	2.87	4.61
Bus. US 281	1991	7.23	11.63
Bus. US 283	2006	3.30	5.30
Bus. US 287	1991	5.60	9.01
Bus. US 287	1991	8.50	13.68
Bus. US 287	1991	38.60	62.12
Bus. US 287	2003	2.70	4.35
Bus. US 287	1991	8.30	13.36
Bus. US 287	1994	5.10	8.21
Bus. US 287	1991	0.81	1.30
Bus. US 287	2003	3.02	4.86
Bus. US 290	1991	4.59	7.39
Bus. US 290	1995	16.99	27.34
Bus. US 290	1993	1.40	2.25
Bus. US 377	1991	4.89	7.87
Bus. US 377	1991	1.10	1.77
Bus. US 377	1991	0.77	1.24
Bus. US 377	1992	3.02	4.86
Bus. US 377	2012	2.50	4.02
Bus. US 377	1991	3.51	5.64
Bus. US 377	1991	4.32	6.96
Bus. US 380	1991	2.41	3.87
Bus. US 380	1991	1.51	2.44

The U.S. Highway system in Texas functions as a fundamental transportation network which spans more than 10,000 miles to link urban areas with small towns and ports and rural regions throughout the state. The highway network established during the 1920s serves as the foundation for the state's transportation system before the Interstate system existed and continues to support both local and distant travel. The state of Texas maintains 45 main U.S. Highways which include some of the nation's longest routes such as U.S. Route 83 that stretches over 900 miles from Brownsville to Oklahoma.

The U.S. Highways in Texas have undergone changes throughout the years with some becoming expressways or freeways and others being included in future Interstate corridors such as I‑69. The transportation network of US 59, US 83, US 290 and US 96 enables trade activities and supports both commuting and emergency evacuation needs. The Texas Department of Transportation maintains these roads which provide transportation services to millions of people who do not have access to Interstate routes. The U.S. Highway system functions as a vital infrastructure network for Texas by supporting both economic development and mobility and infrastructure growth.