These four highways are sections of old alignment of and connecting roads with MD 22 in Aberdeen, Harford County.
Adjacent to the intersection is the Aberdeen station, which is a stop for Amtrak and MARC's Penn Line.
Immediately east of US 40, MD 132 makes a right angle turn south and crosses over Amtrak's Northeast Corridor railroad line on an S-curve.
The state highway reaches its eastern terminus just south of the end of the bridge at its intersection with Norman Avenue and federal government-maintained APG Road in a residential neighborhood.
MD 132 leaves the city of Aberdeen and crosses Swan Creek before curving northwest and meeting Oakington Road on a tangent.
[6] US 40 was moved to its present alignment between Aberdeen and Havre de Grace between 1930 and 1933; Post Road was renumbered as an extension of MD 22 by 1939.
[11] MD 132's S-curve bridge over the Amtrak Northeast Corridor was completed in 1983, replacing Bel Air Avenue's at-grade crossing of the railroad.
[12] Bel Air Avenue east of the Amtrak line and Post Road south of MD 22 were removed from the state highway system around 1989.