List Of Highways Numbered 580
Route 580, or Highway 580, may refer to: Canada * Alberta Highway 580 * New Brunswick Route 580 * Ontario Highway 580 United Kingdom * A580 road United States * Interstate 580 (other), I-580 **Interstate 580 (California), a spur connecting the San Francisco Bay Area to the San Joaquin Valley from U.S. Route 101 to Interstate 5 **Interstate 580 (Nevada), a spur connecting Carson City, Nevada to Reno, Nevada (also signed as U.S. Route 395) **Interstate 580 (Nebraska), a former route and now part of U.S. Route 75 in Omaha, Nebraska * * * * * * * {{Road index, 580 ...
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Alberta Highway 580
The Provinces and territories of Canada, Canadian province of Alberta has provincial highway network of nearly as of 2009, of which were paved. All of Alberta's provincial highways are maintained by Alberta Transportation (AT), a department of the Government of Alberta. The network includes two distinct series of numbered highways: * The 1–216 series (formerly known as primary highways), making up Alberta's core highway network—typically paved and with the highest traffic volume * The 500–986 series, providing more local access, with a higher proportion of gravel surfaces History In 1926, Alberta discontinued its system of marking highways with different colours in favour of a numbering system. By 1928, the year a gravel road stretched from Edmonton to the United States border, Alberta's provincial highway network comprised . Prior to 1973, the expanding highway system comprised one-digit and two-digit highways, with some numbers having letter suffixes (e.g., Highwa ...
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