The state highway was constructed at both ends in the early 1930s; the middle section was completed in the late 1940s.

The roadway continues west as Guadelupe Drive into the residential community of New Mexico.

The state highway heads east as a two-lane undivided road through farmland that traverses Aspen Run and the East Branch of the North Branch of the Patapsco River.

The state highway passes north of the former North Carroll High School and crosses over CSX's Hanover Subdivision railroad line before reaching its eastern terminus at MD 30 Business (Main Street).

[6][7] The eastern section of the state highway was extended west over the East Branch in 1936.