As part of the overall project to expand US 113 to four lanes from Berlin to the Delaware state line, 14 unsigned auxiliary routes of MD 575 were designated on old alignments or service roads between 2002 and 2004.

The state highway receives an off-ramp from northbound US 113 before reaching its northern terminus at MD 589 (Racetrack Road).

Access to southbound US 113 is provided by heading west on MD 589, while a ramp to northbound US 113 continues straight.

[3][4] This stretch was bypassed in 2000 as part of a larger project to expand US 113 to a four-lane divided highway between the existing northern end of dual highway just north of US 50 in Berlin and the Delaware state line.

Auxiliary routes of MD 575 were designated between 2002 and 2004 as portions of the project to expand US 113 to a divided highway were completed.