Police said the road will be shut for some time
21:21, 09 Nov 2025Updated 21:53, 09 Nov 2025
The A487 Caernarfon to Bontnewydd bypass(Image: Ian Cooper/North Wales Live)
A serious crash has closed the Caernarfon bypass in both directions.
Police reported at around 9pm that a major collision had happened on the stretch.
The road has been closed between the Bontnewydd and Llanwnda roundabouts.
They warned that it is expected to be shut for some time.
A spokesperson said: “The Caernarfon bypass (A487) is currently closed due to a Road Traffic Collision and will be expected to be closed for some time.
“The road will be closed from Bontnewydd to Llanwnda roundabout.
“Emergency Services are on scene. Please avoid the area and consider alternative routes on your travels.”