The state highway also shares a concurrency with MD 331 between the communities of Rhodesdale and Shiloh Church.

In the early 1930s, US 213 was rerouted through Vienna; as a result, MD 14 was extended to its present eastern terminus in Eldorado.

The state highway heads north as two-lane undivided Secretary Road in a straight line before curving to the east and crossing the Warwick River, where the highway's name changes to Main Street and the route enters the town of Secretary.

MD 14 intersects Poplar Street, which leads to the suicide bridge over Cabin Creek, before leaving the town.

MD 14 crosses an unused rail right-of-way owned by Delmarva Power and Light Company and continues east as Rhodesdale Eldorado Road.

The next two sections were constructed as part of the major north–south highway of the Eastern Shore; the Shiloh Church–Brookview segment was built in 1912 and the Brookview–Eldorado portion was completed in 1914.