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State Route 439 (SR 439) is a four-lane state highway in Storey County, Nevada. Better known as USA Parkway, the route currently connects Interstate 80 (I-80) to the Tahoe Reno Industrial Center (TRIC) located east of Reno. The existing USA Parkway was initially constructed by the industrial center's developers; however, the Nevada Department of Transportation (NDOT) agreed to assume control of the road after Tesla announced plans to build its Gigafactory at TRIC in 2014. NDOT is planning to rehabilitate existing USA Parkway and complete the long-planned extension of the road south to U.S. Route 50 in Lyon County by the end of 2017. ==History== USA Parkway was constructed specifically to provide access to the proposed Tahoe Reno Industrial Center (touted as the largest industrial park in the United States) in Storey County. As the plans for TRIC were realized, greater plans were made for USA Parkway. As early as 2004, the road was proposed to connect with US 50 near Silver Springs, for a total distance between I-80 and US 50 of about . The connection to Silver Springs would increase regional mobility and provide air-freight shipping possibilities at nearby Silver Springs Airport. Proponents of the USA Parkway southern expansion proposed the idea of having USA Parkway accepted into Nevada's state highway system as State Route 805, but NDOT did not take such action. As of August 2009, it was reported that of roadway had been completed—the southernmost to the Lyon county line had only been graded and were still awaiting pavement—while roughly of the route to reach US 50 remained unconstructed.〔 〕 Tesla announced plans to locate its "Gigafactory" battery production facility at TRIC in 2014. To support the projected travel demand, the Nevada Department of Transportation's Board of Directors approved a design-build project to complete the southern extension of USA Parkway in an expedited manner. The project, which involves NDOT taking over USA Parkway, is planned for completion in December 2017 and is expected to cost between $65 million and $70 million. The funds to fast-track the USA Parkway build-out were obtained by deferring maintenance projects on seven other northern Nevada highways. By 2015, NDOT had officially recognized the northernmost of USA Parkway as State Route 439.〔 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「Nevada State Route 439」の詳細全文を読む スポンサード リンク
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