Wielkopolska industrialists and farmers needed a gateway to the world. They chose the Warta as a route for shipping locally manufactured goods. In 1873, a Warta regulation project was launched to make the river navigable. The project formed part of a larger plan for expanding Prussia’s watercourse network. The river offered an affordable and easy route to the capital city of Berlin and the seaports of Szczecin and Hamburg.
The Warta provided Poznań with income, however, it also posed a serious threat. To avoid flood disasters, a major project was carried out in Chwaliszewo in the early 20th century to artificially elevate the island and erect massive dikes and flood walls. Parts of the flood wall can still be seen along Czartoria Street. In 1968, to improve flood control and with the river port already shut down, the city filled the river bed section that cut into developed areas.