Mae'r gwaith i'r gerbytffordd tua'r dwyrain yn dilyn yr atgyweiriadau llwyddiannus i gerbytffordd Kneeshaw Lupton tua'r gorllewin y llynedd, a gafodd eu cwblhau'n gynnar.
Work to the eastbound carriageway follows successful repairs to the Kneeshaw Lupton westbound carriageway last year, which were completed ahead of schedule.