Project A12 IJsselbruggen starts with renovation

This marks a new milestone in the transition that Rijkswaterstaat, together with the market, has initiated towards a vital infrastructure sector.

Completion of the first phase

Rijkswaterstaat and Savera IJsselbruggen worked intensively together on the design in the first phase. Various studies have been carried out to determine the best way to renovate the IJssel bridges. Last summer, both parties reached an agreement on design, execution price, risk profile and planning.

With the successful completion and approval of the first phase, the second phase has now started. The phase transition was celebrated in the presence of representatives of Rijkswaterstaat, Dura Vermeer, Hollandia Services and the entire project team.

Special collaboration

Koen van der Kroon, project manager Rijkswaterstaat: “It was known that the renovation of the IJssel bridges is a complex project with many uncertainties. The two-phase approach proved to be the solution for this project. In phase 1, we investigated together how the renovation could best be approached.’

“Thus, Rijkswaterstaat’s project experience and implementation knowledge from Savera IJsselbruggen were utilized optimally. For example, we conducted a joint welding test to determine the best reinforcement method. This has led to a widely supported solution for the realization.’

“The special cooperation is also reflected in the area of ​​security. 1 integrated security team has been assembled for this project. Regardless of the organization they come from, this team works with only one goal: to increase the security awareness of everyone involved in this project.’

Joint risk management

Rosalie van Dijk, project manager Savera IJsselbruggen: “We took up risk management together and looked at the project’s risks with an open mind right from the start. As a result, all risks are immediately mapped properly, both for us as a contractor and for Rijkswaterstaat.’

“Traditionally, we are not used to this openness, and it was sometimes quite exciting to talk to each other about who can best bear which risk. But it is precisely because of the intensive cooperation in one risk file that we enter the second phase with the knowledge that the biggest project risks have been identified and managed.’

Two-step approach

With the start of the renovation of the A12 IJssel bridges, an important renovation project with a two-phase approach is now successfully moving from the first to the second phase, an important milestone. The two-phase approach is an innovative way of collaboration between Rijkswaterstaat and the contract partner during the entire process: from design to delivery. It is one of the new working methods within the transitional program ‘Towards a vital infrastructure sector’.

The experiences and results from the completion of the first phase of this project will be included in the further development of the two-phase approach. More information about the transition approach and the project can be found on the Towards a vital infrastructure sector website. Here you can find a recent podcast where Rosalie van Dijk and Koen van der Kroon elaborate on the collaboration.


The renovation of the A12 IJssel bridges mainly consists of welding work on the underside of the bridges. In the coming years, Savera IJsselbruggen, a construction combination of Dura Vermeer and Hollandia Services, will install almost 2 km of additional steel beams to strengthen the bridges, improve approximately 2,000 existing welded joints and, among other things, renew 2 supports and the inspection paths.

Traffic is traveling over the bridge, which is not being worked on, and is hardly affected by the work. The main carriageway must first be renovated. When the middle bridge is ready, the outer (steel) bridge is taken up. After the renovation, there will again be 4 lanes available in both directions.

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