Unused highway

Image:PDX US 30 Ghost Ramp.jpeg|thumb|right|A now-unused ramp in Portland, Oregon at the western terminus of I-84 on the east bank of the Willamette River formerly a connection to US99W/Steel Bridge
Image:Gandybridge2.JPG|thumb|right|The 1956 span of the Gandy Bridge between Tampa and St. Petersburg was closed to traffic in 1997 and used as a recreational trail from 1999 until 2008, when it was closed for safety reasons. It remained in place as officials decided between demolition or renovation. In 2015, demolition of the unused bridge began.
An unused highway is a highway or highway ramp that was partially or fully constructed, but went unused or was later closed or part of a future expansion. An unused roadway or ramp may often be referred to as an abandoned road, ghost road, highway to nowhere, stub ramp, ghost ramp, ski jump, stub street, stub-out, or simply stub.