Northern Terminus:  Lawson Road interchange, Kingston Road begins westerly.

Southern Terminus:  Highway 401 interchange at Port Union Road.

Length:  9.7km

Multiplexes:  None.

Freeway:  While officially designated as Highway 401, Highway 3B was signed along what has become the Dougall Parkway and was a freeway between Howard Avenue and the Highway 401 interchange.

AADT (1994):  Unknown.

Status:  Totally downloaded in 1998.  Now known as Ouellette Avenue, Dougall Avenue and the Dougall Parkway.

Road Info:  Highway 3B was a conventional city street in Windsor much more than it was a highway.  Highway 3B is known as the Dougall Parkway, Dougall Avenue, and Ouellette Avenue through the city.  Travelers bound to the Detroit-Windsor Tunnel should note that while Highway 3B is the route from Highway 401 to the tunnel, the tunnel is actually not directly accessed from Ouellette Avenue.  Tunnel traffic must turn right on Wyandotte Street, followed by a left turn on Goyeau Street to access the Canadian portal.  Aside from the short freeway segment where the former Highway 3B interchanges with Highway 401, the speed limit along the former Highway 3B is posted at 50km/h.