You can make a Highway Search request online​​​. You will need to register first and then follow the link for “Highway Searches” from the drop down list.
Gallwch wneud cais ar-lein am Chwiliadau Priffyrdd​​​. Bydd angen i chi gofrestru gyntaf ac yna dilyn y ddolen “Chwiliadau Priffyrdd” o’r gwymplen.