Location: County Seat Hwy and Concord Rd, Sussex Cty Reassurance shield after DE 20. Location: County Seat Hwy and Sussex Hwy, Sussex Cty A few miles later, we’ll approach US-13. Location: County Seat Hwy and Sussex Hwy, Sussex Cty Follow 13 north to Seaford and 13 south to Delmar. Stay straight to head into Laurel. … Continue reading U.S. Route 9, DE 20 to US-13