Texas state highways are a network of highways owned and maintained by the U.S. state of

Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...

. The

Texas Department of Transportation The Texas Department of Transportation (TxDOT ) is a government agency in the American state of Texas. Though the public face of the agency is generally associated with the construction and maintenance of the state's immense state highway system ...

(TxDOT) is the state agency responsible for the day-to-day operations and maintenance of the system. Texas has the largest

state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either ''numbered'' or ''maintained'' by a sub-national state or province. A road numbered by a ...

system, followed closely by North Carolina's state highway system. In addition to the nationally numbered

Interstate Highway The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. Th ...

s and

U.S. Highway The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these h ...

s, the highway system consists of a main network of

s, loops, spurs, and beltways that provide local access to the other highways. The system also includes a large network of farm to market roads that connect rural areas of the state with urban areas and the rest of the state highway system. The state also owns and maintains some park and recreational roads located near and within state and

national park A national park is a nature park, natural park in use for conservation (ethic), conservation purposes, created and protected by national governments. Often it is a reserve of natural, semi-natural, or developed land that a sovereign state dec ...

s, as well as recreational areas. All state highways, regardless of classification, are paved roads. The Old San Antonio Road, also known as the El Camino Real, is the oldest highway in the United States, first being blazed in 1691. The length of the highways varies from US 83's inside the state borders to Spur 200 at just long.

History

The Texas State Highway System can trace its roots to the establishment of the Texas Highway Department on April 4, 1917. Administrative control of the department was given to a three-member commission appointed by the governor for two-year terms. On June 21, 1917, the commission conducted its first public hearing to solicit input on potential highway routes. The committee also divided the state into six divisions to be headquartered in Amarillo,

Dallas Dallas () is the List of municipalities in Texas, third largest city in Texas and the largest city in the Dallas–Fort Worth metroplex, the List of metropolitan statistical areas, fourth-largest metropolitan area in the United States at 7.5 ...

Fort Worth Fort Worth is the fifth-largest city in the U.S. state of Texas and the 13th-largest city in the United States. It is the county seat of Tarrant County, covering nearly into four other counties: Denton, Johnson, Parker, and Wise. According ...

Houston Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 in ...

, San Angelo, and

San Antonio ("Cradle of Freedom") , image_map = , mapsize = 220px , map_caption = Interactive map of San Antonio , subdivision_type = Country , subdivision_name = United States , subdivision_type1= U.S. state, State , subdivision_name1 = Texas , s ...

. Later that year, the commission designated 26 state highways covering which were to be readily accessible to 89% of the state's population. In 1921,

Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of a ...

amended the Federal Aid to Roads Act of 1916 to require the states to take control of road design, construction, and maintenance of state highways by 1925. As a result, on January 1, 1924, the Texas Highway Department took full control of maintaining the state highways from the counties within which they resided. In 1925, the state legislature granted the highway department the responsibility of surveying, planning, and building highways, and the authorization to acquire new highway

rights-of-way Right of way is the legal right, established by grant from a landowner or long usage (i.e. by prescription), to pass along a specific route through property belonging to another. A similar ''right of access'' also exists on land held by a gov ...

by purchasing, or condemning through eminent domain, land required for highway construction. By 1927, the highway system covered , of which were concrete, were asphalt, were gravel, shell or stone, and were clay or soil. 1956 Official Texas Highway Map small

In 1951, a section of the Gulf Freeway (now I-45) opened, becoming Texas' first urban freeway. In 1957, the state began receiving federal funding for the construction of the

Interstate Highway System The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. Th ...

. The first section of Interstate Highway from county line to county line to open in the state was a section of

I-35 Interstate 35 (I-35) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route. It stretches from Laredo, Texas, near the Mexican border ...

Bexar County Bexar County ( or ; es, Béxar ) is a county in the U.S. state of Texas. It is in South Texas and its county seat is San Antonio. As of the 2020 census, the population was 2,009,324. Bexar County is included in the San Antonio–New Bra ...

. By 1967, the highway system controlled of highway. In 1984,

US 66 U.S. Route 66 or U.S. Highway 66 (US 66 or Route 66) was one of the original highways in the United States Numbered Highway System. It was established on November 11, 1926, with road signs erected the following year. The h ...

was replaced by I-40 and the US 66 designation was removed from the state highway system the following year. In 1992, the of Interstate Highway System in Texas was completed with the opening of a section of I-27. In 1997, the

Texas Turnpike Authority The North Texas Tollway Authority (NTTA) is an organization that maintains and operates toll roads, bridges, and tunnels in the North Texas area. Functioning as a political subdivision of the State of Texas under Chapter 366 of the Transpor ...

was merged with TxDOT and independently, the North Texas Turnpike Authority became responsible for toll projects in Collin,

, Denton, and Tarrant counties.

Types of highways

Interstate Highways

The Interstate Highway System in Texas covers and consists of ten primary highways, seven auxiliary highways, and the splitting of both

Interstate 35 Interstate 35 (I-35) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route. It stretches from Laredo, Texas, near the Mexican border ...

(I-35) and

Interstate 69 Interstate 69 (I-69) is an Interstate Highway in the United States currently consisting of 10 unconnected segments with an original continuous segment from Indianapolis, Indiana, northeast to the Canadian border in Port Huron, Michigan, at ...

into multiple letter-suffixed branches. The Interstate Highway with the longest segment in Texas is

I-10 Interstate 10 (I-10) is the southernmost cross-country highway in the American Interstate Highway System. I-10 is the fourth-longest Interstate in the United States at , following I-90, I-80, and I-40. This freeway is part of the originally pl ...

at . The shortest in the state is I-110 at . The construction of the Interstate Highway System in Texas actually began well before these routes were designated as Interstate Highways. A stretch of the

Gulf Freeway Interstate 45 (I-45) is a major Interstate Highway located entirely within the US state of Texas. While most Interstate routes which have numbers ending in "5" are cross-country north–south routes, I-45 is comparatively short, with the ...

( 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, of I-35 opened in

, the first section of Interstate Highway to open from county line to county line in a large metropolitan area. Portions of I-10 west of

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. The opening of a section of I-27 in 1992 completed the Interstate Highway System in Texas. Construction is ongoing for an extension of I-69 southward from its original terminus in

Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...

through Texas to the Mexican border. When built, I-69 will extend about across Texas, from the

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...

state line in the Texarkana–

Shreveport Shreveport ( ) is a city in the U.S. state of Louisiana. It is the third most populous city in Louisiana after New Orleans and Baton Rouge, Louisiana, Baton Rouge, respectively. The Shreveport–Bossier City metropolitan area, with a population o ...

area to South Texas. Similar to I-35, I-69 splits into three letter-suffixed branches, I-69E,

I-69C Interstate 69C (I-69C) is a north–south freeway running through South Texas. Once complete, the freeway (with connections to Mexican Federal Highway 97) will begin at I-2/ U.S. Highway 83 (US 83) in Pharr and head northward ...

, and

I-69W Interstate 69W (I-69W) is a relatively short north–south Interstate Highway running through South Texas in the United States. The freeway begins northeast of the middle of World Trade International Bridge in Laredo and ends at I-35. In ...

U.S. Highways

The

United States Numbered Highways The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these hi ...

are a nationwide grid of highways, but unlike the

, there is no minimum design standard for these highways. This is clearly evident as some stretches of the U.S. Highways in Texas are nothing more than a two-lane rural road, while others are urban freeways. Although the U.S. Highways have been replaced for the most part by Interstate Highways for through traffic, the U.S. Highways still serve as important regional connectors. Several notable examples of U.S. Highways that are built to freeway standards include US 75 and US 80 in

, US 59 and

US 290 U.S. Route 290 (US 290) is an east–west U.S. Highway located entirely within the state of Texas. Its western terminus is at Interstate 10 southeast of Segovia, and its eastern terminus is at Interstate 610 in northwest Houston. It is the m ...

, and US 90 and US 281 in

. The Interstate Highways have replaced several portions of the U.S. Highway network in Texas and as a result, they have been removed from the State Highway System. Several examples include US 81 from Fort Worth to Laredo in favor of

, US 75 from Dallas to Galveston in favor of I-45, and US 80 from Dallas to El Paso in favor of

and

I-20 Interstate 20 (I‑20) is a major east–west Interstate Highway in the Southern United States. I-20 runs beginning at an interchange with I-10 in Scroggins Draw, Texas, and ending at an interchange with I-95 in Florence, South Carolina. Between ...

State Highways

SH 3,
SH NASA Road 1, and
SH OSR shields

A State Highway (SH) is funded and maintained by the state. State Highways have been assigned numbers between 1 and 365 with a few exceptions. There is also a

State Highway 495 Route 495, or Highway 495, can refer to: Canada *New Brunswick Route 495 Japan * Japan National Route 495 National Route 495 is a national highway of Japan connecting between Wakamatsu-ku, Kitakyushu and Higashi-ku, Fukuoka in Japan, with t ...

(renumbered from Farm to Market Road 495), as well as canceled routes SH 550 (a temporary designation for what is now part of I-169) and SH 824 (a temporary designation for what was later part of SH 24).

NASA Road 1 State Highway NASA Road 1 (also NASA Parkway and NASA Road 1) is an east–west state highway that runs from Interstate 45 (I-45) in Webster to State Highway 146/ future State Highway 99 (SH 146/future SH 99) in Seabrook. Th ...

and State Highway OSR are also in the State Highway network. The first 26 state highways were designated in 1917. Highways are not organized by directionality of the highway, instead they are generally numbered as they were when first built in the 1920s and 1930s. Most suffixed routes were eliminated by 1939, though SH 75A existed from 1946 to 1994 to match

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

's SH 75A.

State Highway Loops and Spurs

Loop, Spur and Beltway shields

State highway loops and spurs are short links in the State Highway network. They are generally numbered chronologically, and the lower numbers are older routes. Thus, spurs and loops are not related to similarly numbered main state highways. Typically, a loop connects two state or national highways, and a spur connects a state highway to a Farm to Market Road or other lower rated road. Many loops are either bypasses around significant portions of populated areas or older bypassed state or national highways. One loop—around

—is labeled Beltway 8. The first loops and spurs were defined in 1939; prior to that, the roadways had been suffixed segments of the main state highways of which they branched.

Business routes

Business Interstate Highway, U.S. Highway, State Highway and Farm to Market Road shields

Business route A business route (or business loop, business spur, or city route) in the United States is a short special route connected to a ''parent'' numbered highway at its beginning, then routed through the central business district of a nearby city or ...

s are assigned to many old alignments of Interstate Highways, U.S. Highways, State Highways and Farm to Market Roads that have been bypassed. In addition to the numerical designation, a unique lettered suffix is assigned to each business route along the highway—for instance, Business Interstate Highway 40-D and Business Farm to Market Road 1960-A. (Not all routes start from A, and letters are sometimes skipped.) These letters are included on the sign in small print below the number. The sign specifications for business Interstate highways do not include the letter, but it has been added to many signs. Prior to 1991, business routes were assigned loop or spur numbers, but signed as business routes (with a BUSINESS plate above the shield for the main route). In 1991, all the business routes were assigned official designations, and their former loop and spur numbers were eliminated.

Farm to Market Roads

Farm to Market and Ranch to Market Road shields

Farm to Market Roads generally exist in

rural In general, a rural area or a countryside is a geographic area that is located outside towns and cities. Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry typically are describ ...

areas. After the city or county acquires

right-of-way Right of way is the legal right, established by grant from a landowner or long usage (i.e. by prescription), to pass along a specific route through property belonging to another. A similar ''right of access'' also exists on land held by a gov ...

, TxDOT builds and maintains the road. A number of these roads, generally west of US 281, are designated Ranch to Market Roads, and one—Ranch Road 1—is simply a Ranch Road, serving the

LBJ Ranch Lyndon B. Johnson National Historical Park is a United States National Historical Park in central Texas about west of Austin in the Texas Hill Country. The park protects the birthplace, home, ranch, and final resting place of Lyndon B. Johnson, ...

. Farm to Market Roads were first designated in 1941 and Ranch to Market Roads in 1942. A number of Farm to Market Roads in urban areas were re-designated in 1995 as urban roads but, amid much controversy, the markers were not changed.

Park and Recreational Roads

Park Road and Recreational Road shields

Park Roads and Recreational Roads serve state or

s and "recognized recreational areas"; the first ones were defined in 1937 and 1970 respectively. All roads in state parks are maintained by TxDOT, but are generally not numbered.

Toll roads

Toll Interstate Highway, U.S. Highway and state highway shields

One characteristic of the highways in Texas are its

frontage road A frontage road (also known as an access road, outer road, service road, feeder road, or parallel road) is a local road running parallel to a higher-speed, limited-access road. A frontage road is often used to provide access to private drivew ...

s; most

freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway and expressway. Other similar terms ...

s have continuous frontage roads,

one-way One-way or one way may refer to: *One-way traffic, a street either facilitating only one-way traffic, or designed to direct vehicles to move in one direction *One-way travel, a trip that does not return to its origin Music *One Way (American ban ...

in urban areas and two-way in

areas. Several

toll road A toll road, also known as a turnpike or tollway, is a public or private road (almost always a controlled-access highway in the present day) for which a fee (or ''toll'') is assessed for passage. It is a form of road pricing typically implemented ...

s have one-way frontage roads—not necessarily continuous—with state highway numbers. Most toll roads are marked with special logos, but TxDOT has adopted a new marker as of 2006 for numbered toll roads.

War Highways

War Highways were designated from 1942-1943. All were cancelled or redesignated by 1947.

References

External links

Highway Designation FilesTexas County Highway MapsAARoads Texas Highway PageTexasFreeway.com fan site
{{DEFAULTSORT:Texas State Highways

Highways A highway is any public or private road or other public way on land. It is used for major roads, but also includes other public roads and public tracks. In some areas of the United States, it is used as an equivalent term to controlled-access ...