MD 131 heads east as a two-lane undivided road through the southern end of the suburban community of Mays Chapel.

The state highway passes over Interstate 83 (I-83, Harrisburg Expressway) with no access and enters Lutherville, where the road crosses MTA Maryland's Baltimore Light RailLink at-grade.

Seminary Avenue continues east as a county highway that intersects MD 146 (Dulaney Valley Road) and passes through Hampton before ending at Providence Road.

[1][2] Seminary Avenue was paved from Brooklandville east to the rail crossing—then part of the Northern Central Railway—by 1910.

[4] The bridge that carries Seminary Avenue over I-83 has a bronze dedication plaque for the highway construction project.