Er mwyn medru trwsio’r twll yn y biblinell, bydd angen cau’r A48 i’r ddau gyfeiriad o nos Wener, 14 Hydref tan ben bore ddydd Llun, 17 Hydref 2016.  Caiff yr holl draffig ei ailgyfeirio ar hyd y dargyfeiriad swyddogol trwy Langynnwr.
In order to repair the fractured pipeline the A48 will need to be closed in both directions from the evening of 14 October to early Monday 17 October 2016. All traffic will be diverted along the official diversion route through Llangunnor.