Bridge builders plan to install all 10 span structures on 11 piers of the bridge under construction by March 2023
The superstructure launching over the riverbed, from the 7th to the 5th pier, on the bridge under construction across the Sura River on M-12 Highway has been completed. Two span structures weighing 2,881 tons with a total length of 195 meters were pushed from the river bank of Chuvashia towards the bank of Nizhny Novgorod. The bridge workers will have to slide 477 meters more from the 5th to the 1st pier.
The metal structures of the future superstructure 1-7 are being assembled on a building berth and are one by one pushed forward onto the sliding tracks and rolling devices located on the reinforced concrete intermediate piers. At the same time, according to the project, metal structures of span 7-11 are installed by semi-cantilever erection method – part of the superstructure is assembled on scaffoldings, afterwards its cantilever erection with bearing on temporary supports is carried out.
The installation of the superstructures on the bridge across the Sura River are to be finished by 2023.
The bridge over the Sura River is one of three oversized artificial structures on M–12 Highway and will connect the banks of the Nizhny Novgorod Region and the Chuvash Republic. The bridge is 926.5 m long. The bridge will be based on 11 piers, which are at the final construction stage now, and have two superstructures: a metal one with an orthotropic plate and a steel-reinforced concrete one with a monolithic plate. The total weight of all metal structures will be 9,740 tons. As per the project, traffic will be arranged in four lanes (two lanes in each direction).