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.
More top news
The weather is expected to turn unusually chilly for mid-October as brisk easterly winds arrive during the weekend.
With no Premier League or Championship football, fans are being encouraged to get down to their local clubs to support Non-League Day.
A Police and Crime Commissioner is warning his force is on the brink of becoming "unviable" after years of underfunding.