The Las Vegas Beltway (officially named the Bruce Woodbury Beltway) is a beltway route circling three-quarters of the Las Vegas Valley in southern Nevada. The Las Vegas Beltway carries two numerical designations. Approximately of the highway, from its southern terminus at Interstate 11 (I-11) / I-515 / U.S. Route 93 (US 93) / US 95 in Henderson west and northwest to I-15, is signed as Interstate 215 (I-215) and maintained by the Nevada Department of Transportation. Clark County Route 215 (CC 215) composes the remaining of this semi-circumferential highway, with the county's Department of Public Works responsible for all construction and maintenance. The Las Vegas Beltway currently consists of two different road types: freeway and an interim expressway. The beltway is currently a freeway from the I-11/I-515 interchange in Henderson to just west of US 95 in northwest Las Vegas. The remainder of the beltway is a mix of freeway and expressway, with several of the expressway sections being upgraded to Interstate freeway standards. The beltway was planned and constructed by Clark County. This marked the first time in the United States that a county had overseen the construction of an Interstate highway with little to no state or federal funding. Once completely upgraded to a freeway, the CC 215 portion of the beltway will be redesignated I-215 and the entire facility turned over to the Nevada Department of Transportation for maintenance. Route description The Las Vegas Beltway begins in Henderson at the I-11 / I-515 / US 93 / US 95 interchange, where traffic on westbound Nevada State Route 564 (SR 564, Lake Mead Parkway) defaults onto I-215 west. From here, the beltway primarily follows the former Lake Mead Drive alignment west to the Pecos Road / Saint Rose Parkway (SR 146) interchange. The highway then curves northwest toward Harry Reid International Airport before turning west to cross under Las Vegas Boulevard and I-15. As the beltway passes under I-15, it changes from Interstate to county highway still maintaining freeway status as it heads nearly due west. Passing Decatur Boulevard, two one-way frontage roads (which formerly carried the initial beltway facilities) appear on either side of the highway. At Durango Drive, the roadway curves northward. The frontage roads end as the highway reaches Tropicana Avenue, but the freeway continues briefly west and then north again to intersect Charleston Boulevard (SR 159) near Red Rock Canyon. As it passes north