Flood Control International recently installed a 20m wide by 3m high double sliding flood gate across a State Highway in New Zealand. The flood gate works on a level ground-beam with special swing-out braces to take the water loads.
The flood gate replaces a large demountable barrier that used to take up to 15 operatives 4 hours to install each time it was required. This was a serious disruption to a State Highway, with a 26km diversionary route.
With the new flood gates, the road can be protected by only 2-3 operatives in under 20 minutes.