Effeithiwyd ar nifer o fannau ar hyd lein Dyffryn Conwy a disgwylir i’r lein rhwng Cyffordd Llandudno a Blaenau Ffestiniog barhau ar gau tan o leiaf ddydd Llun, gyda gwasanaeth bws yn cael ei gynnig yn lle’r trenau.  Llywodraeth y DU a Network Rail sy’n gyfrifol am y seilwaith rheilffyrdd yng Nghymru.
A number of locations on the Conwy Valley line were affected and Llandudno Junction to Blaenau Ffestiniog is expected to remain closed until at least Monday, with rail replacement bus services operating on the route. Rail infrastructure in Wales is the responsibility of the UK Government and Network Rail.