The construction work will start on Friday 9 August at 10pm and will require a number of overnight closures.
McLaughlin & Harvey are the contractors appointed to the project, and will undertake work including piling works along the existing road that are required to support the main structure.
Earthworks will also be carried out, which when complete, will allow the sharp bend in the road to be smoothed out.
No significant changes will be made to the landscape, but road users will notice works to the upper slopes above the existing road, as well as a gradual widening of the existing road.
For safety reasons, Transport Scotland has said the A82 will close at Pulpit Rock, south of Ardlui, at 10pm each night and will open again at 6am each morning.
This will take place until the road is scheduled to fully reopen at 6am on Friday 20 September.
The A82 will remain open on either side of the closure, and diversion routes will be in place.
The routes for through traffic are:
- northbound via the A83 at Tarbet, A819 and A85
- southbound via the A85 at Tyndrum, A819 and A83.
A spokesperson for Transport Scotland said: "These works play an essential part in providing free-flowing traffic, removing congestion from this part of the A82 and opening the road for other users, including cyclists.
"The revised closures, welcomed by stakeholders, have been scheduled to minimise impact on local communities, businesses and visitors to this part of the county."
(JP/IT)