Сайменский канал
Between 1830 and 1850 Nils Ericson planned and directed the construction of the canals at Stallbacka, Säffle, Karlstad and Albrektsund. He also led the construction of the Saimaa Canal in Finland (constructed 1845–52), the reconstruction of the Trollhätte Canal in Trollhättan Municipality and the locks at Slussen in Stockholm. In 1845, he was elected a member of the Royal Swedish Academy of Sciences.