Location: Main St and Dow Hwy, South Berwick
No reassurance shield as 236 briefly joins 4.
Location: Main St and Portland St, South Berwick
A block later, turn right for 4 north towards North Berwick. Keep left for 236 north towards Berwick.
N to SR 9, S to NH-4/NH State Line
N to SR 9, S to SR 236
N to SR 236, S to NH-4/NH State Line
