Update from National Highways on work required to the new bridge on B1046 Potton Road

National Highways have shared the following information with us:

 

As the village route to St Neots passes the new bridge on the B1046 Potton Road I wanted to provide you with an update on the further work needed before it can open to traffic.

🔍 What work is to be carried out?

During routine quality checks carried out during construction, we identified an issue with the concrete bridge deck.

The bridge deck is the part of the bridge that supports the road and the traffic travelling over it.

Further investigations identified small surface cracks, approximately 1mm wide. While these cracks do not affect the structural safety of the bridge, they do not meet the quality standards we expect.

To ensure the bridge meets the standards required for long-term safety, quality and durability, our engineering experts determined replacing the bridge deck is the best long-term solution.

We understand that this additional work will be disappointing for local residents and road users. However, it’s important that we address the issue before the bridge opens to traffic.

🛠️ Next steps

The issue is limited to the bridge deck. The bridge beams and supporting abutments have been thoroughly assessed and remain structurally sound.

Work to remove the existing bridge deck will begin on 5 October 2026.

The deck will be removed in sections using a specialist technique called hydrodemolition. This uses high-pressure water to carefully remove concrete while protecting the structural elements that will remain in place.

Once the removal work is complete, expected in early December, we’ll construct a new bridge deck, followed by surfacing and road connection works.

🏠Impact of work on adjacent properties

Our environmental team and I will be working closely with the construction team carrying out the bridge works to help minimise disruption for people living and working nearby.

There will be no impact on vehicle access as a result of the works. Some activities may be noisy at times, but these will only take place during our normal site working hours.

Once we have a confirmed programme for the works, I’ll be in touch with further information of any activities that may be particularly noisy or disruptive.

📅 When will the bridge open?

The bridge is expected to open to traffic by April 2027.