Two thousand workers and over 200 bulldozers, tractors, and trucks worked feverishly to finish the work in time for the Tenth Inter-American Conference of Foreign Ministers, which was to take place in Caracas during the first quarter of 1954. Along with the many Venezuelan workers who worked in the three viaducts were a group of 300 men including immigrant Italians, Germans, Austrians, and Slavs who arrived not long ago to Venezuela (all this by the doctrine of General Pérez Jiménez, who encouraged and supported the immigration to the Venezuelan Nation).