Mae Llywodraeth Cymru wedi buddsoddi £42 miliwn er mwyn gwella diogelwch yn y twnneli a’u gwneud yn fwy cydnerth ac fel rhan o’r buddsoddiad hwnnw, bu Dawnus yn gwneud gwaith i wella’r goleuadau rhwng cyffyrdd 16 ac 17. Roedd Ysgrifennydd y Cabinet yn awyddus i bwysleisio bod rhagor o welliannau i’r A55 yn flaenoriaeth i’r adran.
Lighting improvements between junctions 16 and 17 were carried out by Dawnus as part of Welsh Government’s £42 million investment in the safety and resilience of the tunnels and the Cabinet Secretary was keen emphasise that further A55 improvements were a priority for the department.