Bauüberwachung VV Bau_EÜ Ern. Gstadter Straße (Strecke 5320, km 0,992)

The contract timeline is as follows:

• Contract Start Date: December 7, 2026.
• Contract End Date: May 31, 2028.
• Total Duration: The construction measure ("Baumaßnahme") is planned for 386 days, starting on September 14, 2026, at 07:00 and ending on July 14, 2028, at 17:00. The renewal of the Gstadter Str. overpass (EÜ Gstadter Str. Strecke 5320 km 0,992) begins on October 19, 2026, and concludes on January 31, 2028.

Key Milestones and Phases:

• Beginning of Planning Services by the Contractor: November 9, 2026.
• Start of Execution on the Construction Site: March 1, 2027.
• Completion of the Overpass (EÜ) in Side Position for Insertion: August 13, 2027.
• Start of Full Rail Closure: August 27, 2027.
• Insertion of the Overpass (EÜ) into Final Position, Demolition of Existing Structure, and Restoration of Track Structure: August 30, 2027, to September 11, 2027.
• End of Full Rail Closure: September 11, 2027.
• Completion of Track Structure for Commissioning: September 11, 2027.
• Acceptance Readiness of All Services on the Construction Site: November 30, 2027.
• Handover of Complete As-Built Documentation: December 9, 2027.
• Completion of Contractual Services: January 31, 2028.
• Vorbereitende Maßnahme (Preparatory Measure): September 14, 2026, to May 7, 2027.
• Bauphase 1 (Construction Phase 1 - KIB production under single-lane closure Gstadter Str.): April 8, 2027, to December 3, 2027.
• Vollsperrung der Gstadter Str - westlicher Teil (Full Closure of Gstadter Str. - Western Part): June 1, 2027, to December 3, 2027.
• Bauphase 2 (Construction Phase 2 - Advance Rail Measures): June 7, 2027, to November 10, 2027.

The core scope of work for this tender primarily involves comprehensive construction supervision, detailed documentation, and operational planning for railway infrastructure projects.

Key deliverables and services include:

• Construction Supervision (Bauüberwachung): This entails the technical supervision of construction activities based on contractual agreements.
• Documentation:
• Reviewing the completeness and accuracy of as-built plans ("Bestandspläne") provided by the contractor (ANBAU) and ensuring their compliance with the actual site conditions.
• Confirming that the construction execution aligns with approved implementation documents.
• Compiling and checking the completeness of TSI (Technical Specifications for Interoperability) conformity proofs.
• Maintaining organized documentation on the construction site throughout the project and submitting it to the client upon completion.
• Creating a continuously updated digital photographic documentation of significant construction phases, including detailed descriptions, dates, and locations.
• Change Order Management (Nachtragsbearbeitung): This involves processing change-order relevant facts, drafting statements, and proposing solutions for change order defense, as well as actively managing change orders according to client guidelines.
• Construction Operational Planning (Baubetriebsplanung):
• Developing, coordinating, and creating detailed construction phase plans, including graphical representations, in collaboration with specialist trades.
• Developing, coordinating, and maintaining the commissioning concept (IBN-Konzept) and participating in the organization of commissioning meetings.
• Surveying Services (Vermessung): Providing surveying technical consulting, particularly for tunnel construction projects (e.g., Ulm-Stuttgart, Los A and Los C). This also includes surveying technical as-built documentation and the transfer of data to specific database systems like DB-REF.