Nevada State Route 140

State Route 140
Denio Road; Adel/Oregon Road
Nevada State Route 140, highlighted in red.
Route information
Maintained by NDOT
Length	110.113 mi[1] (177.210 km)
Existed	by 1968–present
Major junctions
Southeast end	US 95 north of Winnemucca
Northwest end	OR 140 at the Oregon state line
Location
Country	United States
State	Nevada
Counties	Humboldt
Highway system
Nevada State Highway System Interstate US State Pre‑1976 Scenic
← SR 121 → SR 144

State Route 140 (SR 140) is a two-lane state highway in Humboldt County, Nevada. It serves a sparsely populated section of the state, connecting northwestern Nevada to southern Oregon. Most of the highway was originally part of State Route 8A, and was later improved through an effort to provide an all-weather highway linking northern Nevada to the Pacific Northwest.