The highway runs 4.89 miles (7.87 km) from MD 20 in Chestertown north to MD 298 at Melitota in central Kent County.

The highway heads northwest as two-lane undivided Flatland Road, which immediately enters the town for a while, then leaves the town and parallels the limits to Cromwell Clark Road.

[1][2] In 1948, Kent County requested that the Maryland State Roads Commission make improvement of Flatland Road its highest priority project in the county during the post–World War II road building effort.

[3] The highway from MD 20 to Hanesville Road was constructed in two sections.

The first 2.25-mile-long (3.62 km) section was built as a gravel road in 1949, and the gravel road was improved with bituminous stabilization the following year.