The tidal barrier which will protect thousands of homes and businesses from the risk of flooding.
Work on the 38 million pound project in Ipswich started today and it is due to open in 2016.
The council says it will secure the future of the town, and encourage economic growth.
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British astronaut Tim Peake takes part in a test to see how a Mars rover handles when it's controlled from further away.
Norwich Manager Alex Neil says the team are still fighting in the battle for Premier League survival as they face Arsenal away tomorrow
It will be a chilly but sunny start to the bank holiday weekend on Saturday morning before showers develop later. Feel less cold by Monday.