This article deals with the Nordic Council as a cooperation organ for building transnational roads outside of the E-road network during the period 1956–1966. The Nordic experience of planning and interconnecting transnational roads is related to the United Nations Economic Commission for Europe (ECE) and the development of the E-road network. It is noted that whereas the E-road network built on an ambition within the ECE to create mutual understanding and fraternity between the European nations, the Nordic Council viewed roads as instruments to deal with shared economic and social problems. Another difference is that while the member states of the ECE interacted with societal groups and expert organisations during the interconnection of the E-road network, such actors did not participate directly with the Nordic Council. The inter-Nordic stream of technical expertise was primarily channelled through the national road administrations which cooperated to interconnect the trans-Nordic network.