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Texas state highways are a network of highways owned and maintained by the U.S. state of Texas. The Texas Department of Transportation (TxDOT) is the state agency responsible for the day-to-day operations and maintenance of the system. Texas has the second largest state highway system next to North Carolina's state highway system. In addition to the nationally-numbered Interstate highways and U.S. highways, the highway system consists of a main network of state highways, loops, spurs, and beltways that provide local access to the Interstate Highways, U.S. Highways, and state 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 that are located near and within state and national parks 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 I-10'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 up into six divisions to be headquartered in Amarillo, Dallas, Fort Worth, Houston, San Angelo, and San Antonio. Later that year, the commission designated 26 state highways covering which were to be readily accessible to 89 percent of the state's population.〔 In 1921, Congress 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 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 dirt.〔 In 1951, a section of the Gulf Freeway (now Interstate 45) opened, becoming Texas' first urban freeway. In 1957, the state began receiving federal funding for the construction of the Interstate Highway System. The first section of Interstate Highway from county line to county line to open in the state was a section of I-35 in Bexar County. By 1967, the highway system controlled of highway. In 1984, US 66 was replaced by I-40 and the US 66 designation was removed from the state highway system the following year. Today, a portion of the original Route 67 between Garland and Greenville is signed as TX-66. 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 was merged with TxDOT and independently, the North Texas Turnpike Authority became responsible for toll projects in Collin, Dallas, Denton and Tarrant counties.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Texas state highways」の詳細全文を読む スポンサード リンク
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