List of incomplete Queensferry Crossing snagging works revealed

A list of 23 jobs which are needed to be done before the Queensferry Crossing project is finally declared finished has been released by Transport Scotland.

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.

Contractors have identified snagging works which require the lifting of the surfacing around the bridge expansion joints

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

  1. Complete managed motorway. Target date: end January

  2. Completion of deck internal mechanical and electrical (dehumidification, structural health monitoring, deck shuttle, tower lifts). Target date: end March, but tower lifts end September
  3. Completion of mechanical and electrical in abutments and general finishing work. Target date: end March
  4. Completion of bridge control room systems (structural health monitoring, SCADA). Target date: end March
  5. Concrete finishing, towers, piers and deck edge cantilevers. Target date: end September
  6. Commissioning of tower maintenance access platforms. Target date: end March
  7. Commissioning of cable maintenance access cradles. Target date: end March
  8. Load verification test for weigh in motion and structural health monitoring system . Target date: end May
  9. Bearing remedials at piers S1 and S3. Target date: end July
  10. Completion of internal painting. Target date: March-end September
  11. Touch-up external painting (repair chips to paint from handling damage. Target date: March to end Sep
  12. Galvanising repairs to vehicle restraint system (zinc paint). Target date: March to end September
  13. Complete painting of dampers. Target date: March to end September
  14. Completion of architectural lighting. Target date: end March
  15. Monitoring of towers at cable anchorages. Target date: March
  16. Alignment of underdeck inspection gantry rails. Target date: end June
  17. Commissioning of underdeck gantries. Target date: end July
  18. Adjustment of windshield louvres. Target date: end Feb
  19. Snagging works to windshield post bolts and additional works to wind shield louvres. Target date: end June
  20. Finishing work to baseplate grout at windshields and vehicle restraint system. Target date: end Feb
  21. Snagging to road lighting. Target date: end March
  22. Road drainage snagging. Target date: end March
  23. Planting works. Target date: 26 March
  24. Source: Transport Scotland

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