The bridge over the River Adige is composed by a single span of 81.4m with a bowstring arch supporting a 6.5m-wide carriageway, a pedestrian walkway and a cycle path.
It consists of a straight steel deck with an orthotropic plate, supported by a single steel archinclined at 20° from the vertical and located laterally, in an eccentric position with respect to the longitudinal axis. The arch has an irregular pentagonal box and a jib of 13.5 m from the deck. The arch-bridge connection is made by means of welded I-shaped hangers with variable section.

The deck consists of a multi-cellular box with 5 webs and a maximum height of 1.6m with diaphragms spaced by 3.3m. The cycle path and the pedestrian walkway, with an effective width of 2.8m and 2.5m, are supported by I-section cantilevers with variable height and placed in correspondence of the diaphragms. The pedestrian path progressively distances itself from the roadway proceeding towards the centre line.

The main structure has a total length of approximately 309 meters and consists of two separate decks. The first deck “(C0-P2” has a plan layout with a radius of curvature of 50.0m and develops over two spans of 34m + 52 m for a total length of 86 m. The deck “P2-C7” has a rectilinear route over 5 spans (58 + 42 + 39 + 48.5 +34 m) for a length of 222 m.
The platform has a total width of approximately 16m, divided into a central part of 7.00 meters wide for the BHLS, a cycle-pedestrian path 5.00 meters wide and 1 sidewalk 2.45 meters wide.

The 1.89 m high cross section is made by a metal box with four webs. Metal slabs lean on the upper flanges and have the function of permanent formwork for the rounding of a reinforced concrete slab 27 cm thick. The connection between footings and slab is ensured by rungs. The reinforced concrete slabs located on the overhangs are made by prefabricated semi-slabs with concreting completely on site. The overhangs are supported by variable-height steel brackets located in correspondence of the standard struts and bridge parts.
The overall weight is approximately 2000 tonnes, of which 600 relate to the curved section alone.
Two laminated elastomer bearings are located on all the piers or abutments; the C0-P2 deck in correspondence of the alignments P2 and C0 on the curved internal side, has special anti-lifting bearings.

Assembly and launching of the viaducts Navale N/S, Bollone N / S and Fiumicello Nord in mixed steel-concrete structure.

Final design of the launching nose, of the thrust structures on the assembling yard and of the lowering equipment . Assistance to the construction site during the launching and lowering phases. Min geometrical features of the viaducts:
• North / South Naval: span 93 + 110 + 93 m
• Bollone Nord: span 80 + 4×95 + 65 m
• Fiumicello Nord: span 70 + 70 + 5×90 + 55 + 55 m

Launching and prefabrication equipment for three rail viaducts made of prestressed reinforced concrete for extrusion on the prefabrication field with a box-section. The most significant work is the VI 12 viaduct, built with a continuous beam scheme with 8 spans and spans equal to approximately 36 m, 6 x 45 m, 36 m respectively, for a total of approximately 342 m. The route of the viaduct develops in a curve with a constant radius of curvature, equal to 3’200 m along the layout axis. The VI 6 viaduct, on the other hand, is spread over 4 spans of 36 m, 2 x 45 m, 36 m for a total of 162 m. The launching equipment consists of the launching nose with a length of approximately 38 (made with two I-section beams of variable height and equipped with diaphragms and lower bracing),
from the rear beak for the final push phases, from the temporary supports with lateral restraints and from the push group in correspondence with the throwing abutment. The prefabrication field extends for about 50 m and is made up of the support structures for the bottom and side formworks, the lateral sides and all the moving elements of the sides and bottoms.

Launch project for the two continuous girder viaducts in mixed steel-concrete structure Bridge 19 Duck Creek and Bridge B20 Cannons Creek.

Verification of the decks during the launch phase, pre-dimensioning of the pushing jacks, of the thrust structures on the launching field and of the sliding supports on sledges.
Bridge 19 Duck Creek: lights 75 + 75 m
Bridge 20 Cannons Creek: lights 68 + 86 + 72 m