Construction Works for Tunnels and Underpasses in Arnstadt

This contract involves various construction works related to the development of pedestrian underpasses, including the following key tasks: 1) Demolition of two shaft structures and machine rooms without elevator technology. 2) Removal of a 30-ton steel superstructure. 3) Demolition of 160 m³ of existing materials (concrete, reinforced concrete, masonry, natural stone). 4) Excavation of 2350 m³ of construction pit. 5) Installation of 550 m² of formwork, partially waterproof. 6) Backfilling of structures with lean concrete (780 m³). 7) Backfilling with earth materials (925 m³). 8) Construction of 300 m³ of reinforced concrete works using water-resistant concrete. 9) Waterproofing works over 115 m². 10) Installation of 180 m² of drainage walls. 11) Construction of 128 m of concrete prefabricated steps. 12) Painting works over 300 m². 13) Construction of two stair enclosures. 14) Partial demolition and restoration of the roof covering of the platform roof (520 m²). 15) Equipment according to the DB InfraGo AG catalog for platforms/access paths. 16) Demolition of 58 m of existing platform edges, including foundations. 17) Removal of 720 m² of platform surface. 18) Construction of 58 m of new platform edges, including foundations. 19) Construction of 930 m² of new concrete paving. 20) Construction of 21 m of new wall elements. 21) Demolition of two wind protection systems. 22) Construction of two new wind protection systems. 23) Equipment according to the DB InfraGo AG catalog for superstructure services. 24) Demolition of 72 m of track. 25) Construction of 72 m of new track, including tamping works. 26) Cable trenching and drainage works in the platform area. The deadline for submissions is August 12, 2025. For more details, visit the TED platform.