Location: St Erth, Cornwall
Client: Westcountry Rivers Trust
Project partners: St Erth Parish Council
Services: Riverbank erosion repair, soft revetment, live willow installation, public footpath protection, hand-built watercourse works
Project length: 1 day

Client Brief

This was a small but careful bank repair project on the River Hayle at St Erth.

We were contracted by Westcountry Rivers Trust as part of wider access improvement works being carried out with St Erth Parish Council. The section of bank had become badly eroded where dogs were repeatedly accessing the river, and the public footpath beside it was starting to suffer as well.

It was not a large repair, around 6 metres in length, but it needed doing properly. The aim was to protect the bank, reduce further erosion, and do it in a way that suited the river rather than hard-engineering the edge.

THRC Solution

A Natural Revetment Repair

The repair was carried out entirely by hand.

We prepared sweet chestnut stakes and drove them into the riverbed in front of the eroded bank, leaving enough space behind the stakes to pack in the revetment material.

Locally sourced and site-won bundles of hazel, willow and alder were then packed tightly into the undercut section of bank. Natural rope was woven through the structure and secured back to the posts, helping hold everything in place against the river edge.

It was slow, practical work, but that was the right approach for the site. A small repair on a live river does not always need machinery, concrete or heavy materials. In this case, timber, brash, rope and careful hand work were a better fit.

 

Live Willow and Habitat Value

We also installed larger cut willow material within and in front of the revetment, with the intention that it would root and add further strength to the bank over time.

That is the benefit of this type of soft riverbank repair. It is not just a barrier against erosion. If it establishes properly, the repair becomes part of the bank.

The woven material also creates shelter and structure along the river edge, with potential value for birds, insects, small mammals and aquatic life. It looks natural because it is natural.

 

Working With the River, Not Against It

Because the works were taking place on the River Hayle, the method had to be kept controlled and low-impact.

The repair was carried out under main river consent and with Westcountry Rivers Trust oversight. We worked in low-flow conditions, kept disturbance localised, avoided unnecessary silt movement, used untreated natural materials, and avoided concrete or other hard engineering.

During the works, we also had an unplanned visit from Environment Agency staff, who inspected what we were doing and were happy with the approach and standard of the repair.

That was a useful moment. On a job like this, the details matter: how the stakes are set, how the material is packed, how the river edge is treated, and whether the repair feels appropriate to the site.

 

Managing Access

The eroded bank was linked to repeated informal dog access, so the bank repair formed part of a wider effort to manage how people and dogs interacted with the river.

As part of the wider access improvements, we also installed formal steps at alternative locations. The idea was not to stop people enjoying the river, but to move access away from the vulnerable section of bank and reduce pressure on the footpath.

End Result

The eroded section of riverbank was repaired using a natural, hand-built revetment that suited the scale and sensitivity of the site.

The public footpath is now better protected from further erosion, and the riverbank has a stronger, more stable edge. Over time, the live willow should help bind the repair further and soften it into the surrounding vegetation.

For THRC, this was a good example of small, intricate riverbank work delivered to a high standard. It was only a one-day project, but it still needed the right permissions, the right method, and the right level of care.

Not every job has to be large to show what a contractor can do. Sometimes a six-metre bank repair says a lot about how carefully a company works.

 

Services Included

  • Riverbank erosion repair
  • Soft revetment installation
  • Natural bank protection
  • Live willow installation
  • Sweet chestnut stake installation
  • Hazel, willow and alder bundle packing
  • Hand-built watercourse works
  • Public footpath protection
  • Access improvement works
  • Main river consent works
  • Low-impact riverbank repair
  • Westcountry Rivers Trust project delivery
  • Parish council access improvements