The A545 from Beaumaris to Menai Bridge remains closed following another landslide.
Anglesey Council said the road would remain shut until Friday evening – at the earliest – following a small gas leak caused by a wall collapsing at Glyn Garth.
Emergency work is taking place to clear around 40 tonnes of rubble and build a new retaining wall. The council says it’s making ”every effort” to make sure the road is safe before it’s reopened.
The A545 was closed at the turnoff for Llandegfan at around 8pm on Wednesday, between Gallows Point, Beaumaris and Cichle Hill.
It has been shut by similar landslips several times in recent years. It was closed in November last year following a similar incident at Glyn Garth as torrential rain led to flooding on parts of Anglesey.
A spokesperson for Anglesey Council said gas engineers were able to complete their work after a safe area was cleared on Thursday morning.
In January, around £95,000 was set aside by the council’s executive for finding ways of strengthening and improving the road in a bid to find a long-term solution to the landslides over the next few years.
Both police and council officers have advised drivers to use alternative routes – namely the A5025 from Menai Bridge to Pentraeth and the B5109 from Pentraeth to Beaumaris.