For securing of maintenance of road and smooth traffic, we set period to regulate digging up by roadwork and private use construction newly about paved road.
List of digging regulation engines
|Pavement classification||Prohibition period|
|Cement concrete||Five years|
|Asphalt concrete||Three years|
|Special pavement||It depends on "guideline about special pavement" to set separately|
|We repair other pavement (except gravel path) and overlay and pave||One year|
We can confirm digging regulation point of road which Yokohama-shi manages in the engineering works office of each ward.
List of each ward engineering works office is this