The construction of the D3 motorway is extremely technically demanding as it takes place in the mountainous terrain of northern Slovakia.

The entire section was officially handed over for use on 10 June 2017, after twenty years of planning and construction.

[4] Construction of the Horelica Tunnel northwest of Skalité began in July 2000, and the breakthrough was achieved in May 2002.

[5] Kysucké Nové Mesto - Oščadnica is a planned section with a length of 10.8 kilometres (6.7 mi), which will run parallel to the I/11 road.

Content in this edit is translated from the existing Slovak Wikipedia article at sk:Diaľnica D3 (Slovensko); see its history for attribution.