Trees on the Thames Water estate are being assessed in a massive environmental survey with the aim of encouraging more active tree management and promoting safety throughout the grounds.

Both individual trees and woodlands are being inspected by a dedicated team of landscapers, with the survey not expected to be complete until summer 2018, such is the size of the job.

The challenging task will culminate in reports on the condition of trees on the estate, as well as providing details of habitats and identifying any dangerous trees that need to be felled.

Landscapers are drawing up a comprehensive database of the site’s trees and various resident species, which will be referred to for years to come.

With much of the work already completed, arboriculture experts estimate that there are around 150 different species of tree on the estate, including traditional oaks and lime trees, as well as more exotic species such as Indian bean trees and the Japanese maple.

More than 170,000 trees dot the Thames Water site, many of which provide wildlife corridors throughout areas of Gloucestershire, Wiltshire, London and the Thames Valley

Senior arboricultural consultant Alan Richardson commented: “One of the main positives of the survey is that it’s raising awareness of the trees.

Although a proactive approach is being employed to maintain the site, dangerous, dead or diseased trees may need to come down before they fall and cause damage or injury, Mr Richardson said

Previously, issues had been raised about overhanging trees along the boundaries of the Thames Water estate in Oxfordshire; Mr Richardson added that there is limited knowledge of where the site boundaries finish. The survey will help to provide a more in-depth overview of the estate and where work is needed.

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