Work has started on the Anchorsholme Coast Protection Scheme, Blackpool Council said.
The project is set to protect 5,000 properties from flooding and help save the sandy beach from coastal erosion.
Works to establish the construction compound are nearing completion, and works to the sloped revetment have now started. Along a section stretching from Little Bispham tram stop to Kingsway, rock armor will be added to stabilize the existing structure and provide additional protection. These works are due to finish in May 2027, the Council said.
The contractors will then begin the construction of five rock groynes on the beach. These will help prevent coastal erosion and protect nearby properties from flooding. The groyne works are due to be completed early 2028.
Works are being carried out by contractors Balfour Beatty, with funding for the rock groynes allocated by the Environment Agency.