Crane-assisted removal of two large dead elm trees

Project overview

Recently, we were appointed by a local council to remove two extra-large dead elm trees from Spanby churchyard. Both trees had deteriorated significantly and posed a risk of failure, making their removal essential for public safety.

Before any work began, one of our experienced managers carried out a detailed site visit to assess the trees and plan the safest and most efficient method of removal.

Dead timber can pose challenges due to its brittle branches, unpredictable features and reduced structural integrity, meaning there is an even greater need for a mechanised approach. We assessed this carefully prior to starting the work, and highlights the need for specialist expertise.

Access to the site presented another challenge. With limited space within the churchyard itself, the crane was positioned in a neighbouring field. Access was arranged in advance through the landowner. This allowed the crane to operate safely while still reaching both trees. The landowner wrote us a fantastic five-star Google review on completion of the work:

“Although not a job I contracted, the work required access and use of my field for one of the largest cranes (and other equipment) I have ever seen. This involved partially removing a fence and laying mats and pads on the ground. Two very tall, but unfortunately dead, elm trees were then taken down on the adjoining property, lifted onto the field, cut up and removed. Everything was then restored to the same condition as before and if you hadn’t seen it all in situ you would be hard pressed to know that they had been there. From what I saw, everything was done very professionally and I would certainly get a quote from them if I had the need in future.”

Our Approach

Planning

Due to the size, condition and location of the trees, we decided that the majority of the dismantling would be carried out using a crane. This would allow large sections of the trees to be lifted away in a controlled manner, reducing the need for free-falling timber. It also helped in protecting the graves and surrounding features in the churchyard.

The climbing arborists planned to work using a two-rope climbing system. This consists of two independent anchor points while climbing, providing an additional level of safety when working at height.

Execution

On the day, the team consisted of two experienced climbing arborists, a machine operator and a lorry driver, all working together to ensure the operation ran smoothly.

One of the climbers first ascended into the tree and began removing the branches in carefully planned sections. At nearly 20 metres in height, with a stem diameter of over 600mm, this was no mean feat! The team attached each section to the crane using lifting slings before they were cut free and carefully lowered to the ground. Throughout the dismantling process, clear communication between the climber and crane operator was essential, so the team used Stihl Comms headsets to coordinate every lift safely and efficiently.

This approach proved particularly effective because of the number of obstacles surrounding the trees. Grave stones, boundary fencing and overhead power lines all had to be carefully avoided. The proximity of the public highway also meant the team needed to remain aware of passing pedestrians and vehicles throughout the day. Before work began, the team installed cones, warning signs and barrier tape to clearly define the work area and exclusion zone.

Result

Once both trees had been dismantled, the team turned their attention to clearing the site. The local council had requested that all timber and arisings be removed.

Brash and smaller branches were processed through our large woodchipper, with the resulting woodchip later recycled to fuel our biomass boiler. Larger timber was moved using the crane, allowing it to be stacked neatly before being loaded onto our tractor and trailer for removal from site.

This was a technically challenging project that required detailed planning, specialist equipment and close teamwork throughout. While many tree removals can be completed using traditional climbing and rigging techniques, some projects demand additional planning and specialist machinery.

Ecological considerations

At Simpson Arboriculture, we routinely carry out wildlife disturbance assessments prior to starting tree work. The trees were checked for nesting birds, as well as other wildlife species such as bats. None were found, which meant that the team could carry out the work as planned.

As the elm trees were dead, all chainsaws were thoroughly cleaned and sterilised afterwards as part of our biosecurity procedures, helping to prevent the potential spread of tree diseases between sites.

Machinery used

Crane
Climbing arborist with chainsaw
Tractor and trailer

Services enlisted

Tree removal