Location: Dupont Hwy and Upper King Rd, Kent Cty Immediately after DE 15 joins, it will leave, taking US-13 Alternate with it. 13 Alternate follows old US-13 through Woodbury.    N to DE 10 Alt, S to DE 12  N to US-13 Alt/DE 10 Alt, S to DE 12  N to DE 15/DE 10 Alt  N … Continue reading U.S. Route 13, DE 15 to US-13 Alt/DE 15