Modular flood barrier

A module adapted to form a protective barrier against liquid runoff or flooding, the module being movable between a working position and a stowed position, the module comprising:

• a base adapted to anchor the module to the ground;
• a retention member comprising a wall adapted to retain liquid and an opening adapted to let liquid pass therethrough, wherein the retention member is mounted to the base to:
• extend vertically relative to the base when the module is in the working position, and
• extend parallel to the base to form a box with the base when the module is in the stowed position;
• a flexible waterbag fixed to the retention member, wherein
• the waterbag is supported by the base and adapted to receive liquid passing though the opening when the module is in the working position, and
• the waterbag is contained in the box when the module is in the stowed position.

A protective barrier against liquid runoffs or floods, comprising two or more modules, each module being movable between a working position and a stowed position, each module comprising:

• a base adapted to anchor the module to the ground;
• a retention member comprising a wall for retaining liquid and an opening for letting liquid pass therethrough, wherein the retention member is mounted on the base to:
• extend vertically relative to the base when the module is in the working position, and
• extend parallel to the base to form a box with the base when the module is in the stowed position;
• a flexible waterbag fixed to the retention member, wherein
• the waterbag is supported by the base and adapted to receive liquid passing though the opening when the module is in the working position, and
• the waterbag is contained in the box when the module is in the stowed position;
• and
• a connecting plate configured to connect the module to a second module when the module is in the working position.