The Old Military Road (OMR) A83 diversion is due to open by 3pm this afternoon offering drivers a route past the severe landslips at the Rest and Be Thankful.
Estimates suggest that 800 tonnes of material came onto the trunk road and that resilience netting caught a further 1,000 tonnes of material coming off the hillside, including a number of large boulders.
The opening of the OMR follows work to clear issues affecting other locations on the A83 both north and south of the Rest and be Thankful to make the OMR diversion viable.
At Glen Kinglas, further north of Rest and Be Thankful, this involved clearing a landslip in which 20 tonnes of material was washed onto the trunk road.
At the ‘Spanish Steps’ at Ardgarten, south of Rest and Be Thankful a further 20 tonnes of material was removed from the road. Flood water affecting the road at Arrochar, also south of Rest and Be Thankful, was pumped away.
A spokeswoman for trunk road maintenance agency Bear Scotland said it was working with Police Scotland with a view to ensuring the OMR diversion route remained available overnight.