MD 144 continues east as Old National Pike, a two-lane undivided road that is paralleled by an unused carriageway immediately to the north that serves as a park and ride and the original alignment further north, which is lined with scattered residences. The two southern carriageways cross the Monocacy River on bridges while the northernmost road dead ends at the site of the removed Jug Bridge. East of Bartonsville Road, MD 144 expands to a four-lane divided highway, with the westbound direction making use of what to the west was an unused carriageway. The original alignment, Baltimore Road, now parallels the highway to the south, while Long Branch parallels the highway to the north. MD 144 crosses Long Branch before approaching its eastern terminus. Westbound MD 144 receives a loop ramp from Exit 59 of westbound I-70. The old alignment, Old National Pike, heads north from the divided highway, passes under I-70, and turns east toward New Market as a county highway. MD 144 continues east to its terminus at Ijamsville Road, where the divided highway ends, with the eastbound direction becoming an entrance ramp to eastbound I-70.