Interstate 80 around Sacramento, California
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Since 1981, Interstate 80 has run north of Sacramento, California, United States on a bypass freeway. I-80 was moved from a route through Sacramento, now Interstate 80 Business, onto what had been Interstate 880, due to the cancellation of the replacement of the North Sacramento Freeway. The freeway runs from the junction of I-80 and I-80 Business (U.S. Route 50 there) west of Sacramento across Interstate 5 to their junction northeast of Sacramento (I-80 Business is State Route 51 there, and State Route 244 heads east as a short freeway spur).
[edit] History
Legislative Route 242 was defined in 1957, connecting pre-1964 Legislative Route 6 west of Sacramento to pre-1964 Legislative Route 3 northeast of Sacramento.[1] Interstate 880, a bypass of I-80, was approved along Legislative Route 242 by the American Association of State Highway Officials on November 10, 1958.[2] The Route 880 designation was adopted by the state in the 1964 renumbering; the bypass was completed in 1972.
Not all of Interstate 80 on the North Sacramento Freeway in Sacramento met Interstate standards. Its replacement was cancelled in 1979, and in 1980 much of the former I-80 was withdrawn from the Interstate Highway System; the western half remained part of the system as Interstate 305. Numbering changes were made by the state in 1981, eliminating Route 880 by realigning Route 80. Former Route 80 became Route 305 and Route 51; later that year, I-305 became an extension of U.S. Route 50 (but remained unsigned I-305 federally). (The Interstate 880 number was reused in 1983 as a renumbering of part of State Route 17.)[3]
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