Location: DE 1 and Dupont Hwy, New Castle Cty Reassurance shield as US-13 joins. DE 1 is the primary route through these parts. Location: DE 1 and Dupont Hwy, New Castle Cty Just after joining, US-13 will split in a mile to continue south. Location: DE 1 and Wrangle Hill Rd, New Castle Cty Exit … Continue reading Delaware Route 1, US-13/DE 71 to US-13/DE 72