The new bridge supplements the existing crossing with a second roadway. The solution that has been designed is a variant in terms of its construction, cross-section width, as well as its aesthetics and appearance.
The bridge has been designed for loads of load class “A” specified in the PN 85/S – 10030 standard and for loads according to NATO standards.
The static arrangement of the designed bridge is a 5-span continuous beam with a span in the axes of bearings of 85m + 3x 96m + 85. The bridge will have a roadway and a pedestrian-and-bicycle route, which gives a width of the bridge of about 14m. In variant “Ib” and “IIb” there is an additional inspection route, which makes the bridge wider to about 16m.
The supports for the bridge have been designed as massive and made of reinforced concrete, resting on drilled piles. The continuous footings of the supports will be made in steel sheet piling cover.
The shape and appearance of the pillars refers to the existing bridge; the gradeline has also been adapted to the existing bridge.
The bridge will also have view balconies-terraces on the level of the bridge supports from its “outside’. A mini flanking tower with a view platform is suggested on the west side of the entry to the bridge.
There are 3 variants for the construction of the bridge spans:
- Ia and Ib – Two steel welded-plate girders of variable height joined with a reinforced concrete roadway plate by means of bolts,
- IIa and IIb.- Two steel welded-plate girders of variable height with a steel orthotropic plate
- III - Two steel lattice girders height joined with a reinforced concrete roadway plate through an upper strip of the lattice by means of connectors.
In architectural terms two detail finishes different in form have been designed (version I “classical”, and version II “modern”). They differ in the finish to the construction elements, which have been designed as complete arches made of sheet metal. The differences are also in the materials used for the view terraces and the mini flanking tower, as well as the fencing elements, the railings, light posts, rubbish bins. The basic construction, the pavement materials, the barriers are not subject to stylisation.