AMP: 0
Location: Billerica Rd and Central Sq, Chelmsford
No signage as Route 129 begins.
AMP: 0
Location: Billerica Rd and Golden Cove Rd, Chelmsford
Keep right for 129 east to US 3. turn left at Golden Cove Rd for a connection to I-495.
AMP: 0
Location: Billerica Rd and Golden Cove Rd, Chelmsford
Reassurance shield after keeping right.
AMP: 2
Location: Billerica Rd and Northwest Expy, Chelmsford
A mile and a half later, we’ll approach the US 3 freeway. This is a freeway guide sign that got stuck on a pole, which is always fun.
AMP: 2
Location: Billerica Rd and Northwest Expy, Chelmsford
Turn right ahead for US 3 south to Burlington.
AMP: 2
Location: Billerica Rd and Northwest Expy, Chelmsford
Follow 3 south to Burlington.
AMP: 2
Location: Billerica Rd and Northwest Expy, Chelmsford
Reassurance shield as we pass over US 3.
AMP: 2
Location: Billerica Rd and Northwest Expy, Chelmsford
Turn left for US 3 north to Nashua, N.H.
N to I-495, S to MA 62
