Pont Y Borth Menai Suspension Bridge Adeiladwyd 1818-1826 I Gwblhau'r Ffordd Rhwng Llandain a Chaergybi Constructed 1818-1826 to complete the London to Holyhead Road Thomas Telford 1757 - 1834 Peiriannydd Engineer Cyflwynwyd ar 9 Awst 2007 Gan Sefydliad Y Peirianwyr Sifil-Cymru I Ddathlu 250 o Flynyddoedd ers ei eni Presented on 9 August 2007 By the Insistution of Civil Engineers-Wales to celebrate the 250th Anniversary of his birth

English translation: "Menai Suspension Bridge Constructed 1818-1826 to complete the London to Holyhead Road Thomas Telford 1757 - 1834 Engineer Presented on 9 August 2007 By the Insistution of Civil Engineers-Wales to celebrate the 250th Anniversary of his birth"
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