The Dutch replacement and renovation (R&R) task doesn’t have a concrete problem. It has a stakeholder problem — and that is a distinction the sector has yet to fully grasp.

Today, 22 April, the Dutch infrastructure sector convenes in ‘s-Hertogenbosch for the Infrastructure Day 2026. The central question: how do we keep the replacement and renovation task feasible? The agenda covers lifespan extension, modular bridges, standardisation and market capacity. All legitimate topics. John Kerkhoff of Janson Bridging warns that when the R&R task truly picks up pace, there will be no market capacity left. De Bouwcampus identifies a lack of governance and excessive fragmentation.

But a crucial perspective is missing from this debate: all those modular bridges, standardised contract forms and additional staff will not help if the permits aren’t in place, if participation processes haven’t been completed, and if objections haven’t been resolved. And it is precisely there — in the stakeholder and environmental management process before construction — where the hidden bottleneck lies.

What the sector is discussing — and what it isn’t

The concern about feasibility is well-founded. Bridges rust, tunnel technology ages, market capacity is limited, and the pace of the task increases year on year. TNO calculated that annual costs of the replacement task will rise from 1.1 billion euros in 2021 to 2.9 billion per year in the period 2031–2040. The urgency is real.

The solutions the sector seeks are primarily technical and contractual: standardisation of designs, serial procurement, robotics, better condition data. These are useful interventions — but they all concern the execution phase of a project. And the execution phase only begins after a much longer and more vulnerable pre-phase has been navigated.

That pre-phase — environmental studies, permitting, public participation, objection and appeal procedures — already takes two to five years for an average national or provincial structure. For objects in urban areas, or projects touching Natura 2000 sites or water protection zones, this can stretch to ten years or more. The Ring Utrecht motorway expansion — annulled by the Council of State in March 2026, after twelve years of preparation — is the most painful example. But it is not an exception. It is a pattern.

The silent half of the task

More than half of Dutch municipalities have no current insight into the condition of their own bridges and viaducts. Alarming — but that is only the beginning of the problem. Suppose those municipalities conducted a full structural survey tomorrow and found twenty objects requiring replacement within five years. What follows?

Not a contractor breaking ground the next morning. What follows is: mapping the stakeholder environment (residents, businesses, utility companies, emergency services), conducting a stakeholder dialogue on phasing and disruption, applying for permits from multiple competent authorities, carrying out environmental impact assessments where required, and observing statutory consultation periods. In urban areas, add: coordination with utilities in the ground, alignment with adjacent municipalities and water authorities, and consultations with the regional environmental service.

This pre-phase is not scaling up alongside the technical scaling the sector advocates. TNO and De Bouwcampus promote serial approaches and standardisation of structures. But even TNO concludes that collaboration between asset owners is a prerequisite for success. That collaboration presupposes a shared stakeholder and environmental management approach — and that approach does not yet exist at most decentralised asset owners.

The acceleration illusion

There is a frequently heard argument in the sector that we want to challenge: “If we standardise structures and procure serially, we can move through the pre-phase much faster.”

This is partly true. Standardisation can shorten the stakeholder analysis per object if situations are comparable. But the stakeholder and environmental management process is legally embedded. Participation is not optional — it is a right that residents and stakeholders are entitled to. Objection periods are non-negotiable. And the content of every environmental management process is determined by the specific local context — the neighbourhood, the residents, the waterways, the soil, the ecology — not by the design of the bridge.

Anyone who believes that standardising designs also standardises environmental processes is mistaken. And this mistake is dangerous, because it produces planning schedules that are technically coherent but legally unachievable.

The scale of the problem

The R&R task spans thousands of structures across hundreds of asset owners: Rijkswaterstaat, twelve provinces, 342 municipalities and 21 water authorities. Every structure that is addressed requires a stakeholder and environmental management process. For a significant proportion of these asset owners, stakeholder and environmental management is not an institutionalised discipline. There are no dedicated environmental managers, no standardised participation processes, and no legal capacity to track objection procedures — let alone to proactively manage environmental risks.

If the sector wants to increase execution speed, stakeholder and environmental management capacity must grow proportionally. That means not just more people, but also: shared knowledge infrastructure for decentralised asset owners, a national framework for public participation in replacement projects, and environmental managers involved from the exploration phase — not only after the contractor has been selected.

What we observe in practice

Environmental managers on major Rijkswaterstaat projects have long understood this. In Rijkswaterstaat’s replacement and renovation programmes, stakeholder and environmental management is an integrated part of the project organisation from day one. But that same standard does not exist at a typical municipality with three ageing bridges on its territory.

The difference in stakeholder and environmental management maturity between Rijkswaterstaat and decentralised asset owners is enormous. And the R&R task over the coming decades will play out primarily at those decentralised asset owners — provincial roads, municipal bridges, water authority structures. That is where the volume is.

The conversation we need to have

The sector has made strides in recent years on data, standardisation and collaboration. That is progress. But the conversation about feasibility is incomplete as long as stakeholder and environmental management does not have a full place within it.

Today, at the Infrastructure Day, the sector rightly discusses capacity. We argue that this conversation should not stop at technicians, cranes and procurement capacity. It must also address: how much stakeholder and environmental management capacity do we need at decentralised asset owners? How do we ensure that participation processes for thousands of structures are not reinvented each time? And how do we prevent permitting procedures from undoing the acceleration the sector achieves on the technical side?

The R&R task is feasible. But not without stakeholder and environmental management.

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