Object and structural engineering for demolition and replacement new building Lph 1-6 HOAI of the Pilsach valley bridge. The planning task for the engineering structure deals with the renewal of the Pilsach valley bridge as part of the Federal Highway (BAB) A3 Nuremberg — Regensburg. The section extends from construction km 29+720 to construction km 30+790 and is located between the Neumarkt i.d. Upper Palatinate junction and AS Neumarkt-Ost. The bridge crosses BAB A3 via Pilsach, the B299 federal road and the district road NM21.

Object and structural engineering for demolition and replacement new building Lph 1-6 HOAI of the Pilsach valley bridge. The existing structure will be replaced by a new building due to significant static and structural deficits. The superstructure of the existing building is one-piece. For the new valley bridge, the first superstructure for the direction of travel Nuremberg is to be erected on temporary pillars in a side makeshift position. BAB traffic management during the construction period takes place via the existing structure until the side position is created. Once the new building is finished on the side, traffic is transferred from the existing building to the new superstructure. After the existing structure has been demolished, the second superstructure for the direction of Regensburg is rebuilt on site. The traffic is then shifted from the side position to the new second half of the bridge and the new bridge superstructure is shifted across from the side position to the final position.

The Pilsach valley bridge is located in an ecologically sensitive area. Protected areas must be taken into account when planning.

In coordination with the AG, a traffic phase concept must be created. Due to the construction of the first partial structure in a lateral position with later insertion to the final position, the reverse routing resulting from this must be taken into account. The detailed development of the traffic phase plans must be carried out taking into account or incorporating the respective bridge construction phases.