MD 168 begins at an intersection with Hammonds Ferry Road in a mixed commercial and industrial area at the northern end of the unincorporated community of Linthicum. Access between MD 168 and eastbound
Interstate 695 (I-695, Baltimore Beltway) is via the county highway between the state highway and the
Patapsco River to the north. The west leg of the intersection is county-maintained West Nursery Road, which curves to the south, has a
diamond interchange with
MD 295 (Baltimore–Washington Parkway), and serves a business district near
Baltimore/Washington International Thurgood Marshall Airport. MD 168 heads east as a two-lane undivided road that passes underneath I-695 and intersects Fairview Avenue, which is
unsigned MD 969A and provides access to westbound I-695. The state highway enters a residential area after it crosses MD 295. MD 168 reaches its eastern terminus at its junction with MD 648 (Baltimore–Annapolis Boulevard) in Pumphrey. Nursery Road continues east into the parking lot for the
Nursery Road station of
MTA Maryland's
Baltimore Light RailLink. ==History==