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There currently exists a wonderful website that provides very detailed history of each state and U.S. highway for the states of Maryland, West Virginia, Virginia, Tennessee, North Carolina, and South Carolina, plus Washington, DC. Let's all hope it never goes away because this Author does not wish to recreate their incredible and hard work. Kudos to Mapmikey and Adam Prince. Click Here for an overview of the South Carolina portion. Click on the Interstate Hwy No. below to learn more about each individual highway as provided in that website. |
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Hwy No. |
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Proposed, never materialized as yet. |
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Approved in 1964, the first segment opened in 1967. Extended seven (7) times until completed in 1976. Click Here for wikipedia article. |
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From the end of I-20 into downtown Florence. |
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Originated in 1956, the first segment was opened in 1960. Extended in 1961, 1962, 1963, 1964, 1965, 1967, and 1968. Click Here for wikipedia article. |
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Approved in 1991, this interstate has been in constant battles over routing ever since. Click Here for wikipedia article. |
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Approved in 1995, this interstate is in a constant battle over funding in South Carolina. Click Here for wikipedia article. |
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Originated in 1956, the first segment was opened in 1975. This highway was completed in 1986. Extended in 1976, 1979, 1980, 1981, 1982, 1988, 1990, and 1995. Click Here for wikipedia article. |
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Approved in 1985. Decommissioned when I-77 extension was completed in 1995. |
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Originated in 1956, the first segment was opened in South Carolina in 1959. Extended in 1962, 1964, and 1965. Spartanburg bypass created in 1995. Click Here for wikipedia article. |
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A renumbering of I-85 through Spartanburg when bypass completed. Click Here for wikipedia article. |
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Originated in 1956, but the first segment was not opened in South Carolina until 1969. Extended in 1971, 1972, 1973, 1974, 1975, 1976, and completed in 1978. Click Here for wikipedia article. |
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Proposed, never materialized. |
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Approved in 1959 and construction completed in 1961. Duplexed with U.S. 76. Click Here for wikipedia article. |
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Decommissioned c.2000. Click Here for wikipedia article. |
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Proposed North Myrtle Beach connector from planned I-74. Most likely will never be constructed. |
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Originally planned in 1955, construction completed in 1962. Partially duplexed with U.S. 29. Extended in 2001. Click Here for wikipedia article. |
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Proposed, but quickly redesignated to I-385 in South Carolina. |
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Approved in 1976, but never built. In 1995, this proposed highway was designated to be part of I-77. |
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Originally planned to be I-285 in 1955, but quickly redesignated to I-385. First segment opened in 1963. Extended in 1964 and completed in 1984. Click Here for wikipedia article. |
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A renumbering of U.S. 276 Business. Click Here for wikipedia article. |
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Opened in Georgia in 1966, extended into South Carolina and opened in 2004. Extended in 2009. Click Here for wikipedia article. |
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Opened as an unnumbered freeway in in 1982. Approved and operational as I-526 in 1989. Click Here for wikipedia article. |
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A renumbering of U.S. 17 Business. Click Here for wikipedia article. |
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Early planning documents identified this as I-385, but was later changed tgo I-585. Duplexed with U.S. 176. Click Here for wikipedia article. |
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Pine Street between Whitney Road and St. John Street. Click Here for wikipedia article. |
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