Bournemouth Council is to open a public display about its coastal protection plans for an 11km stretch of coastline, which is expected to take 17 year to complete.
The work includes replacement of 53 groynes and construction of three new ones, as well as beach material replenishment work every five years during the project.
The £50M scheme is being funded by the Environment Agency with some finance provided by the local council.
The first phase includes £17.5M of investment and covers work undertaken between 2015 and 2020. This phase involves the replacement of 30 groynes along the coast from Southbourne to Hengistbury Head and 320,000m3 of beach replenishment.
Beach material will be dredged offshore and pumped to the construction area via a pipeline.
Bournemouth council has warned that failure to undertake the work could impact on the integrity of the sea wall and lead to increased cliff erosion.
ESG undertook the ground investigation for the project in March this year.