Le Val des Terres will close for around an hour and a half this evening to allow 'urgent tree works' to go ahead.
Traffic & Highways says an 'unsafe tree' up the Le Val des Terres requires urgent attention, as it poses a potential risk to the public.
The winding hill in St Peter Port will be closed from 6PM tonight (28 January), when services suspect the majority of commuter traffic will have subsided.
Pedestrians and cyclists will still be able to pass through during the closure, and a diversion for vehicles will be in place along Fountain Street and Colborne Road.
The road is expected to reopen by 7:30pm.
Another closure is scheduled to take place from 3 to 16 February for wider tree surgery works.
Passengers will need passports for new Portsmouth sailings via France
Islands Unlimited explores inter-islands car ferry
Guernsey's Alex Scott wins first England cap
New Dean of Guernsey promises to serve the whole Bailiwick
Questions in the States Assembly over Guernsey's bus service
Police name woman found dead in Alderney
Guernsey restaurant stars in Apple TV show
Next stage of work on Guernsey's hospital dropped as 'unaffordable'
