It connects Klaipėda with the Latvian border near Būtingė.

The section between the junction with 168 and Palanga is planned to be refurbished to limited-access expressway with a default speed limit of 120 km/h.

From A11 junction to the Latvian border, the road continues as a single carriageway.

This route is a part of the International E-road network (part of European route E272).

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