Er mwyn tarfu cyn lleied â phosibl, mae 1 lôn ar gael yn ystod y dydd i ganiatáu i draffig fynd i'r 2 gyfeiriad ac mae'r gwaith sy’n tarfu fwyaf wedi'i drefnu dros nos.
To minimise disruption, 1 lane is available during the daytime to allow traffic to pass in both directions and the most disruptive works have been scheduled overnight.