Major Project A100 – 16th Construction Phase – Berlin
Description
The 16th Construction Phase of the A100 motorway represents the largest and most technically complex transport infrastructure project in Berlin. The inner-city project comprises an approximately 3.2 km long, six-lane motorway section, executed almost entirely as a cut-and-cover trough structure, forming a continuous and highly complex engineering structure within a dense urban environment.
The project includes a wide range of demanding tunnel, bridge and civil engineering structures, all delivered under live urban traffic conditions:
Tunnel Structure
- Grenzallee Tunnel
Road tunnel constructed using the cut-and-cover method, with a total length of 386 m, featuring a six-lane cross-section with three lanes per direction. The tunnel required sophisticated construction phasing, traffic management, groundwater control and extensive technical equipment for safe operation.
Bridge Structures
- Ringbahn Bridge (RIN 01)
- Sonnenallee Bridge – Mainline Railway
- Sonnenallee Bridge – Tramway
- Kiefholzstraße Bridge
- Dieselstraße Bridge
Civil Engineering Structures & Infrastructure
- Continuous trough and retaining wall structures
- Noise protection systems
- Road pavement including mastic asphalt and porous asphalt
- Comprehensive drainage systems, including retention basins
- Stormwater pumping stations (Grenzallee, Dieselstraße, Kiefholzstraße) including pump technology
- Groundwater monitoring, service roads and gantry structures
- Landscape and environmental mitigation measures (adjacent and remote)
- Emergency stairways and perimeter fencing
Technical Systems
- Traffic management and control systems
- High-voltage and communication systems
- Ventilation, HVAC and sanitary systems
- Fire-fighting and lighting systems
- Safety systems and barrier installations
Scope of Services
Project Management and Project Control for the largest infrastructure project in Berlin, with a strong focus on schedule controlling, structured construction sequence management and reliable project reporting. Responsible for comprehensive interface management across tunnel, bridge, civil and technical disciplines, as well as stakeholder management involving public authorities, rail operators, utility companies and emergency services, ensuring transparent decision-making and coordinated project delivery within a highly complex urban environment.