This section of the A55 was upgraded to a dual carriageway in the late 1960s and does not comply with current highway standards.
Cafodd y darn hwn o’r A55 ei uwchraddio’n gerbytffordd ddeuol ddiwedd y 1960au ac o’r herwydd, nid yw’n cydymffurfio â’r safonau cyfredol ar gyfer cefnffyrdd.