Where a tree has crown dieback exceeding 75%, or where it poses a more immediate risk, the formal four stage legal process under the Highways Act will be initiated.
Pan mae gan goeden glefyd coed ynn i’r goron o fwy na 75%, neu pan mae’n creu risg mwy di-oed, cychwynnir y broses gyfreithiol bedwar cam ffurfiol o dan y Ddeddf Priffyrdd.