Dowd Avenue is a major thoroughfare in Elizabeth, New Jersey which serves the residential district.

Route 164 was first assigned onto Humboldt Avenue after the 1953 state highway renumbering, continuing until somewhere between 1957 and 1969, when it was decommissioned and turned over to the city for maintenance.

Dowd Avenue begins at an intersection with Trumbull Street and New Point Road in the city of Elizabeth, New Jersey.

Paralleling to the east of the New Jersey Turnpike, Dowd Avenue crosses under another railroad, the route enters a short community in the southeastern portion of Elizabeth.

After leaving the community, Dowd Avenue turns to the northwest, crossing under the twelve lanes of the turnpike just south of Interchange 13A and continuing northward on a western parallel.