sentences:  In this area, the route insects the southern terminus of Maryland Route 208 (38th Street), before continuing along the town line and passing through a mix of residential and commercial areas.US 1 Alternate leaves the boundary between Colmar Manor and Cottage City as it crosses over the Anacostia River just to the southeast of the confluence between its Northeast and Northwest Branches and enters the town of Bladensburg.Immediately after crossing the river, the route's median for its directional Y intersection with the eastern terminus of MD 450 (Annapolis Road), which is the old alignment of US 50 in the capital region of Maryland which heads east into downtown Bladensburg.