The highway is part of European route E67 and, starting from Lilaste until the Estonian border, does not move further than 6 km from the coast of the Baltic Sea.

In 2023, it is planned to start using average speed control radars in Latvia, one of which will be located before the Saulkrasti turn, in the section 13.4 - 20.0 km.

[3] After Latvia's accession to the European Union in 2004, the first six kilometers until the intersection with P1 were reconstructed, widening the carriageway to 11.5 meters wide (in some places up to 12 meters), constructing sidewalks and bicycle lanes, reducing the number of exits, constructing parallel traffic roads, and reconstructing the bridge over the railway.

In this section too, the carriageway was widened to 11.5 meters wide, intersections with the most important access roads were reconstructed, and a pedestrian/cyclist bridge was built over the highway.

The project cost a total of 5,35 million euros, which was fully financed by the state budget.

The construction works were carried out by SIA Via for a contract price of 2.2 million euros, which was fully financed by the state budget.

However, due to high construction prices, significant impact on the environment and strong public objections, in August 2022 VSIA Latvijas valsts ceļi decided not to proceed with the project.