The Environment Agency (EA) says it has repaired 350 flood defences and protected 100,000 homes in the process, after winter floods battered the south of England.
Repairs have been completed in Weymouth, where sea defences were washed away by stormy seas during January and February.
The EA has also repaired defences at Greatham Creek in Teesside, where flood waters ripped a 50m breach in the sea defence embankment.
Beaches along the Lincolnshire coast have also had their dune systems repaired to restore protection to over 20,000 properties.
The restored defences would supply "peace of mind" but the job was far from finished, the EA said.
Dr Paul Leinster, chief executive of the EA, said: "There is still much more to do, and thanks to the completed inspections we now have a full picture of the condition of all the flood risk management assets across the country."