|
|direction_b=CW |terminus_b= in North Las Vegas |previous_type=NV |previous_route=208 |next_type=NV |next_route=221 }} The Las Vegas Beltway (officially named the Bruce Woodbury Beltway) is the name of the 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 515/U.S. Route 93/U.S. Route 95 in Henderson west and northwest to Interstate 15, is signed as Interstate 215 (I-215); however, only two distinct portions of this section (I-515 to Stephanie Street and Warm Springs Road to I-15), totaling a little over , are maintained by the Nevada Department of Transportation.〔 Clark County Route 215 (CC 215) composes the remaining of this semi-circumferral highway, with the county's Department of Public Works responsible for all construction and maintenance (the county also maintains the middle section of the aforementioned southeast leg signed as I-215). 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-515 interchange in Henderson to just north of Cheyenne Avenue in western Las Vegas. The remainder of the beltway is primarily expressway, with several sections currently 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 has overseen the construction of an Interstate highway with little to no state or federal funding. Once completely upgraded to freeway, it is anticipated that the CC 215 portion of the beltway will be designated 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-515/US 93/US 95 interchange, where traffic on westbound State Route 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 towards McCarran 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 through the community of Summerlin (part of the city of Las Vegas), it meets the Summerlin Parkway freeway at a recently upgraded system interchange. The beltway downgrades from freeway to an expressway (with some grade separations) after it passes the Cheyenne Avenue/Cliff Shadows Parkway interchange. From here, the road continues north along the western foothills of Las Vegas to pass behind Lone Mountain. Soon afterward, the highway curves east and intersects US 95 at a yet to be upgraded partial interchange. From there the beltway continues nearly due east along the alignment of Centennial Parkway before entering northern North Las Vegas at Decatur Boulevard. From there it swings northeast, passing by the large Aliante development before turning east again. Much of the final few miles of the route from here on are in undeveloped land, except near the interchange at 5th Street, with intersections existing primarily as turnarounds, until the beltway swings southeast just past Lamb Boulevard and reaches its ending terminus at I-15 just west of the Las Vegas Motor Speedway. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Las Vegas Beltway」の詳細全文を読む スポンサード リンク
|