Derby City Council has deployed round-the-clock security at Darley Abbey Mills Bridge after warning that the closed structure has deteriorated significantly and now poses a serious risk of collapse.
The council said security will be stationed 24 hours a day on the village, or west, side of the bridge to protect the public and deter people from forcing access to the fenced-off site. Temporary lighting has also been installed so security teams can monitor the area more clearly.
Residents and visitors are being told to stay away from the bridge, avoid the fenced site, and not enter the water near the bridge or the weir.
Collapse risk around Darley Abbey Mills Bridge
The warning follows what the council described as a significant deterioration in the condition of Darley Abbey Mills Bridge over recent weeks. The structure is already closed, but officials said more people have been forcing their way into the restricted area despite the danger.
If the bridge were to collapse, the council said it could create a severe risk to life for anyone on the structure or in the water nearby. The risk is not limited to the bridge deck itself: the authority also warned of possible danger to Walters Walkway, the weir and utilities in the area.
That makes the site hazardous both for people trying to cross or approach the bridge and for anyone entering the river close to the structure. The council’s public advice is direct: do not force access under any circumstances and do not go into the water near the bridge or weir.
Security and emergency powers now in use
The council said the condition of the bridge means it will use emergency powers under the Building Act 1984 to take direct action to dismantle the structure and remove the public danger.

The 24/7 security presence is intended to reduce immediate risk while that work is prepared. The temporary lighting is part of the same safety response, giving security staff a better view of the village-side approach after dark.
Councillor Carmel Swan, Cabinet Member for Climate Change, Transport and Sustainability, said the closure is frustrating but the bridge is in a critical and dangerous state.
“We cannot stress enough how important it is that people stay away,” she said. “It is deeply concerning that some are still forcing access to the site.”
She added that the council is using emergency powers and security for one reason: to keep people safe.
Why dismantling the bridge is complicated
Removing Walters Walkway and dismantling Mills Bridge is expected to be a complex operation rather than a quick site clearance.
Derby City Council said it is working with partners to move the project forward as quickly as possible, given the risk now posed by the bridge. One of the practical challenges is finding enough space and a firm enough foundation to locate a crane close to the structure.

Those constraints matter because emergency works around a river, weir, walkway and nearby utilities require more than simply closing a road or putting up additional fencing. The council has to manage the risk of the existing structure while also planning how heavy equipment can safely reach and remove it.
For readers following wider bridge safety issues, Beehive has also covered how another community handled a structural bridge failure and reopening after reconstruction in its report on the Kėdainiai bridge restoration.
What residents should avoid now
The immediate public instruction is to keep clear of Darley Abbey Mills Bridge and the fenced-off area around it.
People should not attempt to cross the bridge, climb fencing, approach the structure for photographs, or enter the river close to the bridge or weir. The warning applies even if the site appears quiet, as the council says the risk of collapse has significantly increased.
The security deployment is on the village side of the bridge, but the council’s advice covers the wider danger zone around the structure and nearby water.
Council focus on public safety and infrastructure
The bridge closure has affected local movement around Darley Abbey, but the council said its priority is protecting people and nearby infrastructure while emergency action is prepared.
“Our focus right now is protecting the community and the local infrastructure,” Councillor Swan said. “Please, do not take unnecessary risks, stay clear of the site, don’t force access to the bridge under any circumstances and do not go in the water in the vicinity of the bridge or the weir.”
Source: Derby City Council
Source check Source trail
This report is based on Derby City Council’s published safety notice about Darley Abbey Mills Bridge.
- Confirmed the council’s stated publication date of 3 June 2026.
- Checked the location named in the notice as Darley Abbey Mills Bridge.
- Matched the reported safety measures to the notice: 24/7 security and temporary lighting.
- Confirmed the council’s stated legal route as emergency powers under the Building Act 1984...
- Source
- Derby City Council
- Scope
- Derby
- Updated
- 2026-06-05 10:51
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