Stadtgebiet, 32257 Bünde; Sanierung Bolldammbrücke

The contract timeline is as follows:

The start of the execution is "after contract award". The performance is to be completed (ready for acceptance) "9 months after contract award" or "approx. 9 months after contract award".

Key milestones and phases include:

• End of the period for additional information: October 20, 2026, 23:59.
• End of the offer submission period: October 29, 2026, 11:20.
• Opening of offers: October 29, 2026, 11:20.
• End of the binding period for offers: November 26, 2026, 23:59.

The core scope of work for this tender is the renovation of the Bolldammbrücke (Bridge).

A high-level summary of the Statement of Work and core deliverables includes:

• Execution Documents: Preparation and delivery of an overview plan of the structure according to ZTV-ING, Part 1, Section 2, including the capture of structure data using ASB-Ing, and provision of digital photographs of the significant construction progress.
• Construction Site Setup, Clearing, and Traffic Management: Establishing and dismantling the construction site and managing traffic.
• Construction Aids: Provision of necessary construction aids.
• Road Paving, Bituminous Surfacing, and High Kerbs: This includes the removal of high kerbstones and cable covers, and the installation of new kerbstones.
• Concrete Repair of the Superstructure and Deck Slab: Preparation of concrete surfaces, including high-pressure water jetting (up to 2500 bar) and concrete removal (2-5cm deep), crack injection with epoxy resin, preparation and coating of reinforcement steel, application of bonding bridges, and installation of cement mortar/concrete (RM/RC) with plastic additives.
• Sealing and Protective Layers on the Superstructure: Application of sealing and protective layers on the renovated reinforced concrete surface, including scratch filler and liquid plastic waterproofing.
• Concrete Repair of the Parapet: Repair works on the concrete parapet.
• Concrete Repair of the Undersides (Superstructure, Abutment, and Piers): This involves preparing concrete surfaces, applying bonding bridges, installing cement mortar/concrete (RM/RC), applying fine filler for surface protection (OS 5a (DII)), and applying a protective coating with high crack bridging properties.
• Road Construction Works: General road construction activities.
• Quality Control: Performing adhesion tests on prepared surfaces according to ZTV-ING Part 1 Section 3.
• Environmental Protection: Implementation of measures to ensure that blasting and demolition debris, as well as mortar residues, are collected and prevented from entering the water during the bridge renovation.