L191, Stadttunnel Feldkirch – Nebenbaulose Portal Tisis und Portal Tosters, externe ÖBA und BauK

The contract timeline is as follows:

• Contract Start Date: October 1, 2026
• Contract End Date: April 30, 2029
• Total Duration: 31 months (October 2026 to April 2029).
• Key Milestones/Phases:
• Construction period ("Bauzeit") for Portal Tisis and Portal Tosters: October 2026 to October 2028.
• Technician presence during the project includes "vor Bauphase" (before construction phase), "während Bauphase" (during construction phase), and "nach Bauphase" (after construction phase), with presence extending until December 2028 for some parts.

The core scope of work for this tender involves a large-scale technical infrastructure project, primarily focused on road construction and tunnel building. Key components explicitly stated in the documents include:

• Technical Project (Vorhaben - Technisches Projekt): This encompasses the overall technical planning and execution.
• Road Construction Project (Straßenbauliches Projekt).
• Tunnel Construction: This includes the construction of mined ring tunnels using the New Austrian Tunneling Method (NÖT) at various locations such as Felsenau, Altstadt, Tosters, and Tisis. This involves blasting, partial-section milling, and establishing explosive storage facilities.
• Drainage Concept (Entwässerungskonzept) for the project, including roads and tunnels.
• Ventilation Planning (Lüftungsplanung) for the tunnels.
• Electromechanical Equipment (Elektromaschinelle Ausrüstung), covering operational and safety-related installations within the tunnels and central roundabout, including tunnel lighting.
• Construction Site Facilities (Baustelleneinrichtungen): Planning and establishment of container offices, workshops, and ammonium storage at various portals (Felsenau, Tosters).
• Material Management and Waste Management Concept (Materialbewirtschaftungs- und Abfallwirtschafts-Konzept).
• Safety and Health Protection (Sicherheits- und Gesundheitsschutzkonzept).
• Noise Control (Schalltechnik): This includes reports and calculations for both operational and construction phases, as well as noise maps.

The project also covers related aspects such as geological and hydrogeological investigations, and a general construction concept with a rough construction schedule.