The works, which are scheduled to take until at least September to complete, include concrete, painting and various maintenance tasks.

‘Architectural lighting’ to illuminate the £1.35 billion structure has also to be finished.

Transport Scotland said that most lane closures will take place at night and away from peak times to minimise inconvenience for drivers.

Snagging includes galvanising repairs to the “vehicle restraint system”, work on windshielding post bolts and louvres and “bearing remedials” on two of the bridge piers.

There is also snagging to road lighting and road drainage. Other tasks include completion of equipment inside the bridge deck, such as a dehumidification system to protect against corrosion, a network of monitors that provide alerts of any structural problems, and the tower lifts.

Four painting tasks, involving the outside and inside of the structure, won’t even start until the spring. Concrete “finishing” is needed on the towers, piers and deck edge cantilevers.

The Scottish Government has stressed the list of outstanding work refers to a range of tasks that have always been intended to be completed after the route opened to traffic.

A Transport Scotland spokesman said: “The remaining work has a minimal impact on traffic using the bridge and involves tasks such as under-deck painting, which needs to be undertaken during the spring and summer months, the bridge control room, and work inside the bridge deck and towers.”

Transport Scotland has also published a list of ongoing and planned work for the Forth Road Bridge over the coming months.

An intrusive investigation and inspection of the bridge’s main cables is due to begin in spring, while work to replace truss end links – the part which caused the emergency closure in December 2015 – is ongoing and should be completed soon.

Resurfacing, waterproofing and work to replace under deck access are among the jobs programmed for 2018.

Ongoing and planned works for Queensferry Crossing in full

Source: Transport Scotland