 The total investment value of the A3 motorway construction is estimated at 7 billion Croatian kuna (approximately 958.9 million euro), making the A3 the least expensive motorway in Croatia.Since the A3 motorway was completed in 2006, further construction on the A3 only consists of the addition of interchanges and rest areas.The Kosnica interchange, itself completed in May 2007, lacked access ramps to the south, to the D31 state road, which were in turn completed in November 2013.