Flood Defence Gates

This type of gate is used mainly where traffic access is required through a flood defence wall. The normal solution would be a side hinged gate which is manually operated, other mechanically operated types have been designed, such as horizontally sliding and vertically rising.

Advantages
- Normally manual operation - no power required.
- Simple Civil works.
Disadvantages
- Obviously can only be operated with no water load
- Preferred sealing direction on-seating, but can be designed for an off-seating head.