The M74/M8 eastbound viaduct crosses over both carriageways of the M8 and Carnoustie Street and will connect the eastbound M8 secondary carriageway (outer braid), in the vicinity of the Paisley road off ramp, to the M74 eastbound carriageway. As a result, eastbound traffic on the M8 will be able to connect freely with the M74.
The four span bridge is supported at each end by reinforced concrete supports (abutments) and at three intermediate locations by twin sloping reinforced concrete columns (piers). The bridge deck (superstructure) is made up of steel box girder beams with reinforced concrete cast in place over the beams. Once the main superstructure is in place, additional works (finishes) are required to complete the bridge parapets, to waterproof the bridge and to lay the road surfacing ready for traffic.
Erection of the steel box girders over the M8 will require overnight closures of the M8.
| ID | Task Name | Start | Completion |
|---|---|---|---|
| 1 | M74/M8 Eastbound Viaduct | Autumn 2008 | Spring 2010 |
| 2 | Eastbound Viaduct Substructure | Autumn 2008 | Summer 2009 |
| 3 | Eastbound Viaduct Superstructure | Summer 2009 | Early 2010 |
| 4 | Eastbound Viaduct Steelwork | Summer 2008 | Autumn 2009 |
| 5 | Eastbound Viaduct Main Deck | Summer 2009 | Late 2009 |
| 6 | Eastbound Viaduct Parapet Cantilever | Autumn 2009 | Early 2010 |
| 7 | Eastbound Viaduct Finishes | Early 2010 | Mid 2010 |
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