As Sweden lost its last war in 1809 it also lost Finland, the major source of raw material for the capital's tar industry, and during the first half of the 19th century the workshops on the island were passed back and forth between different owners. In 1848 however, the growing number of steamships produced a need for new shipyards, and for the purpose Beckholmen was bought by the city's wholesalers and shipping industry. The first two dry docks, and long respectively and provided with a steam-driven pumping-station, were thus burst out of the islands bedrock the following year, while the first bridge connecting the island to Djurgården, Beckholmsbron, was built. The docks were extended in two stages during the 1870s and 1890s to their present lengths, and .