The route turns into a divided highway for a short distance at the College Road intersection before becoming undivided. DE 15 turns west to remain on two-lane undivided McKee Road, with Scarborough Road continuing north to US 13 and the DE 1 toll road.
At the College Road intersection, the path splits into a divided highway for a short time before returning to an undivided route. DE 15 heads west along McKee Road as a two-lane undivided road, whereas Scarborough Road continues north towards US 13 and the DE 1 toll road.