Bydd lonydd ar gau yn ystod adegau tawel rhwng 9:30 a 15:30 ac ar adegau dros nos neu dros y penwythnos er mwyn hwyluso'r gwaith adeiladu pan fydd llai o draffig. Bydd rhybudd ymlaen llaw yn cael ei ddarparu.
Off-peak lane closures will be utilised between 09:30 and 15:30 and during a few weekend / overnight works to facilitate construction when traffic flows are lighter. Advance notification of this will be provided.