The Interstate Highway standards for the U.S. Interstate Highway System uses a 12-foot (3.7 m) standard for lane width, while narrower lanes are used on lower classification roads. In Europe, as laws and road width vary by country, the minimum widths of lanes is generally between 2.5 to 3.25 metres (8.2 to 10.7 ft).
Weather | Natural Extremes | Air Quality | Environmental Watch | Zip Codes | Government. Las Vegas is located in south Nevada. Las Vegas is part of Clark County. Las Vegas has 135.81 square miles of land area and 0.05 square miles of water area.
Washoe County, Nevada. Washoe County is a county located in the U.S. state of Nevada. As of the 2010 census, the population was 421,407, making it the second-most populous county in Nevada. Its county seat is Reno. Washoe County is included in the Reno, NV Metropolitan Statistical Area.