Warm and dry weather has enabled an immediate start to work which will close the southern lanes of Napier's Marine Parade for as much as the next four weeks.
The Napier City Council says the northbound lane between the intersections with Ellison St and Warren St (leading into Hastings St) is closed to traffic from today until September 9, while the southbound lane will be closed from September 12-19.
It will also prevent vehicle access to the beach domain and the freedom camping area, opposite the end of Ellison St.
Detour signs were put in place before work started today, and city traffic is being diverted through Ellison and McGrath streets.
Residents and businesses have been advised of access details, the council says, and motorists have been advised to allow some extra time for their southern entry to and exit from the city.