Unused highway
(重定向自Ghost ramps)
![A now unused ramp in Portland, Oregon at the western terminus of I-84 on the east bank of the Willamette River[1] formerly a connection to US99W/Steel Bridge](/uploads/202501/15/PDX_US_30_Ghost_Ramp2134.jpeg)

An unused highway is a highway or highway ramp that was partially or fully constructed, but was unused or later closed. An unused ramp can be referred to as a ski jump, stub ramp, stub street, stub-out, or simply stub.