What are Coastal Storm Gates?

Businesses that are in close proximity to the sea or tidal rivers can be at risk of flooding when there is a tidal storm. Storm gates are generally positioned within the sea defence wall to allow access to the beach, promenade or riverside.

Many storm gates are installed by the council or the environment agency as part of their storm defence. Not all river access is on public land, however, and some businesses might need to install such defences themselves.

Storm Gates are often used in coastal and inland environments to close off roads, railroads or pedestrian access within permanent concrete flood walls as well as earthen dams and dykes in case of a flood.

A storm gate is usually a bespoke solution and the design and material depend on the different project specific circumstances: 

  • Aperture Size – Length and Height

  • Design Criteria – Hydrostatic Water Head, Impact Load, Wave Impact, etc.

  • Environment – Coastal or Inland Environment

A storm gate works by stopping the surge and allowing over topping to dispearse underneath the gate as the surge ebbs. As this is a neoprene strip seal which has no threshold this allows the water to run away.