In 1868, the Barcelona authorities requested permission from the Development Ministry to constitute the Port of Barcelona Board of Public Works (Junta d'obres), which met for the first time in 1869. This institution, a veritable experiment in decentralisation, continued to operate until 1978.It was under the Board of Public Works that the port's structure was at last consolidated and the danger from sand and storms finally overcome.Construction of the first "transversal" dock, where the Moll de Barcelona (Barcelona Dock) now stands, was completed in 1882. This dock later housed Torre Jaume I, the cable car tower for the Port Vell Aerial Tramway, built across the harbor for the 1929 Barcelona International Exposition, a World's fair, but opened only in 1931.The Port continued to grow, stretching past Mount Montjuïc towards the Llobregat Delta with the construction of an inner harbour on the river bank, precisely where Barcelona's first port activity had its remote origins