There will be no parking on Harlow Street near Bangor City Hall on Wednesday.
That parking ban will extend from 78 to 100 Harlow St., the city said in an alert.
There will be no parking on either side of the road from City Hall to the area near the Luther H. Peirce Memorial.
That will allow crews to work on sewer manholes.
Drivers should avoid the area or be prepared to encounter delays.