The world leader in self-securing flexible dams

Water-Gate is a flexible emergency flood dam that harnesses the power of floodwater to automatically fill, unfold and stabilise itself.

Water-Gate is also the latest generation of cofferdam; it simplifies river works, quickly and effectively combats pollution, and makes better use of natural water points for firefighting.

Water-Gate can be installed on any kind of terrain. It is inexpensive and protects the environment.

Flood protection water-gate principle

Water-Gate © technology: for what purpose?

Our range consists of more than 50 standards that are the subject of permanent innovation and many customized products.

Les barrages souples autobloquants Water-Gate© protègent une maison à 360° contre la montée des eaux
Canalisation d'une rivière grâce à un batardeau souple autobloquant water-gate.
Barrages souples autobloquants Water-Gate© pour la rétention d'urgence contre les pollutions liquides
Barrage Water-Gate© de rétention pollution en rivière avec déversoir et trous de relâche

Revolutionary : self-securing flexible dams that harness the power of floodwater

  • Water rushes into the dam and slams the bottom canvas against the ground
  • Archimedes’ thrust lifts the upper retention canvas
  • The friction forces contain the hydrostatic thrust: AUTOSTABLE device, without anchoring.
flood protection 1 to 4 ratio

Benefits and added value of the Water-Gate dam/cofferdam

Unparalleled versatility: a real Swiss army knife when it comes to liquid retention – floods, cofferdams, land pollution, river pollution, fire defence

Guaranteed return on investment!

The Water-Gate dam is the most cost-effective solution on the market. Here’s why:

  • Affordable purchase price
  • Unbeatable transportation costs
  • Unbeatable storage cost
  • Unbeatable installation costs
  • Water-Gate does not require any other equipment
  • Water-Gate does not require any specific layout
  • Water-Gate can help you reduce your insurance costs
  • Water-Gate complements and optimises existing flood defences
  • Water-Gate can be reused for many years
  • Water-Gate generally pays for itself after 1 use

A roll the size of a sports bag can retain thousands of m3 of water with incredible efficiency.

flood protection in roll

Already used across the world to combat pollution and flooding

Water-Gate has been protecting civilian and military infrastructure for over 20 years.
Here are some examples

Val d’Or | Quebec

House undergoing flooding

Woodborough | England

Street flooding

Tokyo Airport | Japan

Torrential rain on the tarmac

Rotorua | New Zealand

Residential neighbourhood

Fortuna Dam | Panama

Adding extra height to a hydroelectric dam

Bischwiller | France

Logistics depot

Water-Gate guarantees 100% protection
Judge for yourself

Our leadership is based on innovation and the exceptional quality of our products from the point of view of safety, efficacy and performance: made-to-measure support for our clients.

Our goal is to be the world’s leading manufacturer of anti-flood and anti-pollution protection.

Our standards are high. We define excellence and we honour our commitments.

Water-Gate dams/cofferdams are certified by FM Global, a world leader in the field of damage insurance.

Certification from FM Approvals signifies that the products have been impartially tested and conform to the most stringent international standards.

water-gate flood barrier fm approval certification
metres sold
years of experience
countries worldwide
0 %
satisfied customers

They count on us

Flood protection, cofferdams, anti-pollution devices, fire defence: check out some of our major clients!

références MegaSecur Europe inondation