Road lanes per direction:
5 lanes in total
1 x centre lane is bi-directional operated in a tidal fashion
1 x north cantilever lane eastbound only 1x south cantilever for pedestrians and cyclists.
Rail lanes per direction:
Road wearing surface type
All areas of the bridge surfaced with hand-laid nominal 38mm thick mastic asphalt with the exception of the Plymouth side span main deck (all lanes) that is surfaced in 55mm thick Gussasphalt.
Type, dimension etc. of main cable/stay cable
Each main cable comprises 31 locked coil wire strands (each 60.2mm). overall main cable diameter is 384mm.
Strands are wrapped in soft galvanized wrapping wire (9sng) and laid in zinc rich paste. Entire cable coated in Mathys Noxyde elastomeric protective coating.
There are also 18 supplementary locked coil wire strands that were added in 1999 as part of a significant strengthening and widening scheme. 6 are 112 mm dia. and 12 are 102mm dia. All strands are coated in a Bridon Metalcoat.
Type, dimension etc. of hangers
120 vertical hangers that are locked coil wire ropes each 54mm diameter with socket connections at the top and bottom of each hanger.
Is the cable structure dehumidified