Work to repair the storm-damaged jetty at East Cliff, in Lyme Regis, got under way this week.
A large excavator is being used and the work is expected to take around two weeks, although bad weather could cause delays.
A spokesman for Dorset Council (DC) apologised to the public for any inconvenience. He said that because the site area is small and self-contained it is hoped that any disruption will be minimal.
Cllr Ray Bryan, DC environment spokesman said: "This work is necessary … hopefully any disruption will be minimal but please do bear with us."
The works involve resetting an area of the lias cladding and repositioning some of the large masonry blocks.
A small temporary welfare unit will be set-up by the council's contractor Hansford Construction Ltd. This will be removed as soon as the works are completed.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here