Complain to the urban construction management department.
The urban construction management department is responsible for matters related to urban construction, including the handling of abnormal noises from manhole covers. Issues related to manhole covers on urban roads will require relevant units to deal with them in a timely manner to eliminate potential safety hazards.
The general public can supervise urban construction work. If they find problems, they can call 12319 to report or log on to the 12319 website and the Luoyang News website to report.