Location: Warwick Rd and US-301, New Castle Cty Less than a mile later, we’ll approach US-301. Location: Warwick Rd and US-301, New Castle Cty 301 north and 299 east concur into Middletown, and 299 east continues to Odessa. Follow 301 south back into Maryland. Location: Warwick Rd and US-301, New Castle Cty Reassurance shield as 299 … Continue reading Former Delaware Route 299, DE 299 to US-301