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200t flood barrier gate to be installed

tidal barrier delivery1 cropped

A 200t tidal flood barrier gate will be installed as part of the Environment Agency’s £70M Ipswich Flood Defence Management Strategy (IFDMS).

The 20m wide gate was manufactured in Rotterdam, Holland and work was carried out by Hollandia, a sub-contractor for VBA, a joint venture between VolkerStevin, Boskalis Westminster and Atkins.

A 1,000t crane will be assembled on the construction site on the middle island of the Port of Ipswich to install the gate into the barrier before the main hydraulic rams and control systems are installed.

Project manager Andrew Usborne said: “This is a key milestone for the project and sees the final elements of the barrier arriving on site.

“The construction of the crane will take several days, and this is a very busy period for what has been a long-running project.

“It’s another step closer to significantly improving the flood protection for Ipswich.”

The gate is 22m wide and 9m tall in its closed position and has been finished with five tonnes of paint to protect it underwater.

The IFDMS will increase the standard of protection to 0.33% and will take into account current climate change predictions. The 0.33% relates to the probability of a combined fluvial and tidal flood event happening in any one year.

The final element of the scheme involves building a tidal barrier across the New Cut River with associated works to tie it into the new east and west bank walls and gates. The barrier, will reduce the risk of flooding to 1,608 homes and 422 businesses, is expected to be operational next spring.

It was funded by the Environment Agency, Ipswich Borough Council, Department for Communities and Local Government, the Haven Gateway Partnership and the New Anglia Local Enterprise Partnership.

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