Bydd y set gyntaf o gau’r ffordd dros nos yn digwydd rhwng cyfnewidfa Ffordd yr Wyddgrug (C5) a chyfnewidfa Gresffordd (C6) i'r ddau gyfeiriad rhwng 1 Mehefin a 3 Mehefin.
The first set of overnight closures will take place between Mold road interchange (J5) – Gresford interchange (J6) in both directions from June 1st to 3rd; the diversion route will be via the A541/A5152.