 State Route 439 | ||||
|---|---|---|---|---|
| USA Parkway | ||||
 SR 439 highlighted in red | ||||
| Route information | ||||
| Maintained by NDOT | ||||
| Length | 18.5 mi (29.8 km) | |||
| Major junctions | ||||
| South end |  US 50 in Silver Springs | |||
| North end |  I-80 in Clark | |||
| Location | ||||
| Country | United States | |||
| State | Nevada | |||
| Counties | Washoe, Storey, Lyon | |||
| Highway system | ||||
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State Route 439 (SR 439) is a four-lane state highway in Lyon, Storey and Washoe Counties in Nevada. Better known as USA Parkway, the route connects U.S. Route 50 (US 50) in Silver Springs to Interstate 80 (I-80) in Clark via the Tahoe Reno Industrial Center (TRIC). The northern portion of 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 opened the extension of SR 439 south to US 50 in Lyon County on September 8, 2017.