construction work for steel bridges - 259212, steel bridge construction including corrosion protection uf lesserstraße, project bridges wandsbek-gartenstadt./ the main quantities are: • dismantling, removal and disposal of existing superstructures: approx. 150 t, manufacture, delivery and assembly of new steel superstructures: approx. 180 t, demolition and new construction of the trough sealing approx. 420 m², corrosion protection for the new superstructure: approx. 2,700 m², transport dimensions: - length of superstructure tracks 1 + 2: 2x approx. 26.5 m, length of superstructure tracks 3 + 4: 2x approx. 19.0 m, width without service paths: 3x approx. 3.65 m, 1x approx. 3.90 m, width with service paths: 3x approx. 4.5 m, 1x approx. 4.80 m, transport/assembly weights:- overbuilt tracks 1 + 2 without service routes: 2x approx. 35 t, overbuilt tracks 3 + 4 without service routes: 2x approx. 55 t, operating paths with railings, track 1 + 2: 2x approx. 3.5 t, service routes with railings tracks 3 + 4: 2x approx. 4.8 t, grating track 1- 4: 4x approx. 1 t, the main girders of the two short bridges, tracks 1 + 2, have a construction height of around 1.35 m, the main girders of the two longer bridges, tracks 3 + 4 have a construction height of approx. 1.55 m.