In 1910, Parisians were proud of the speedy modernization of their city.
Technical improvements changed Parisian environment and comfort. More than half the buildings were linked to the 1200 kilometers long sewers. Domestic refuse were gathered in recipients mandatory, by order of the prefect Poubelle. They were picked up daily and taken to one of the four treatment factories located in the Paris suburbs.

Paris had three different energy sources. Gas provided for 53,000 street lamps and 63,000 private homes. Compressed air activated the 58,000 clocks and 4000 elevators. 67,000 clients subscribed to the electrical network, including the Elysée, the presidential palace. But Paris, a self-conscious city, swiftly buried electric and telephonic wires. Public transportation was also modernized and buried with the metro.

In the beginning of the past century, this modern capital was, however, taken by surprise by the whims of its river. The Seine over-flooded and its waters soon invaded the underground, caves and streets. Parisians were taken aback. Behind its steadfast modernity, Paris was suddenly paralyzed…

What of today? What would be the consequences of such a catastrophe on the modern Paris of the 21st Century? For a centennial flood will surely happen in the years to come, even though the date remains unknown.