Jet d'eau geneva

The Jet d'Eau of Geneva is one of the world's most iconic fountains, shooting water 140 meters high into Lake Geneva.

About this subject

The Jet d'Eau is the ultimate symbol of the city of Geneva, Switzerland. Located at the point where Lake Geneva meets the Rhône River, the fountain was originally installed in 1886 as a simple pressure relief valve for a hydraulic industrial network. At that time, the water rose only 30 meters. In 1891, the city council decided to turn it into a tourist attraction, moving it to its current location and increasing its height to 90 meters. The modern version, inaugurated in 1951, reaches 140 meters in height and pumps 500 liters of water per second at a speed of 200 km/h.

Maintaining the Jet d'Eau requires sophisticated technology. Two electric pumps of 1,000 kW each propel the water, which is taken directly from the lake. The system includes valves and sensors to ensure the jet remains stable even in strong winds. A technical curiosity: the water at the top of the jet travels at about 200 km/h, and as it falls, it forms tiny droplets that can be carried by the wind, creating a humid microclimate around the area. The fountain operates daily from March to October, with reduced hours in winter, and is only shut down in extreme wind or frost conditions.

Culturally, the Jet d'Eau is a meeting point and visual reference for locals and tourists. It appears in films, postcards, and logos of local companies. The nighttime illumination, which began in 1897 with blue reflectors, now uses low-energy LED lights that highlight the water column against the dark sky. In 2013, the fountain was declared a Swiss cultural asset of national importance. Despite its simple appearance, the Jet d'Eau consumes about 2.5 million kWh of electricity annually, enough to supply hundreds of homes.

Frequently Asked Questions

How tall is the Jet d'Eau in Geneva?

The water jet reaches 140 meters in height, which is equivalent to a building of about 45 floors.

Is the Jet d'Eau operational every day?

Yes, it runs daily from March to October, with reduced hours in winter, and is shut down only in strong wind or frost conditions.

How many liters of water does the Jet d'Eau pump per second?

It pumps 500 liters of water per second, at a speed of 200 km/h.