“Mae’r gwaith adnewyddu ar y ffyrdd dynesu at y twnneli yn rhan o’n hymrwymiad i sicrhau bod pob un o’r tri thwnnel ar yr A55 yn cyrraedd y safonau sydd ohoni’r dyddiad hyn. Ers 2014, pan gafodd y twnneli eu gwella er mwyn cydymffurfio â chyfarwyddyd yr UE ar dwnneli, rydym wedi buddsoddi mewn systemau awyru newydd, systemau mecanyddol a thrydanol modern ac wedi gwella’r rhwystrau diogelwch. Mae gwaith wedi’i wneud hefyd i osod wyneb newydd ar y ffordd ac i wella arwyddion a seilwaith y twnnel, a bu’r canlyniadau’n rhai arbennig o dda.
“The refurbishment works to the tunnel approaches form part of our commitment to bringing all three A55 tunnels up to current day standards. Since 2014, when the tunnels were improved to be brought inline with the EU tunnel directive, we’ve invested in new ventilation, LED lighting, up to date mechanical and electrical systems and safety barrier improvements. In addition to this, resurfacing works, improved signing and works to the tunnel infrastructure have all taken place with first class results.