MD 115 is a northwest–southeast highway that connects the suburban communities of Redland and Norbeck in central Montgomery County.

The west leg of the intersection is county-maintained Snouffer School Road, which heads toward Montgomery Village.

MD 115 begins as a four-lane divided highway but rapidly reduces to a two-lane undivided road as it head southeast toward the center of Redland.

The highway and the freeway are connected by a pair of emergency ramps but no public access; the southern ramp connects MD 115 with the hiker-biker trail that parallels the freeway.

[9][10] The highway's overpass of MD 200 and the connecting emergency ramps were completed in 2010.