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Arboriculture Case Studies
Client: Environment Agency - added:

Boscastle Tree Management

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Boscastle Tree Management Survey

Description

CEC were commissioned by the Environment Agency to undertake a tree management and wood debris management survey along the corridor of the River Valency, extending east of Boscastle.  In response to the Boscastle flooding that took place in summer 2004, appropriate woodland and debris management now forms part of the Valency Flood Defence Scheme (FDS).  The survey was intended to identify the tree resource present on site to inform future management decisions and identify specific trees in need of works, in the interest of preventing blockage of the water course.  Much of the study area is covered by TPO with the western extent also designated as a Conservation Area.

The Approach

The survey had two key elements, identification or Visual Tree Assessment (VTA)) of trees for removal that were considered to be in a condition that would contribute to issues of flooding and identification of woody debris for removal, which otherwise if left would be transported downstream to the FDS and contribute to issues of flooding.  The survey was undertaken based on the key principles of BS5837 by walking systematically up the Valency floodplain reviewing base mapping and specifying appropriate operations and/or maintenance required in order to achieve the client’s identified management activities.

Mapping was uploaded onto a tablet device that was used for recording survey information onsite by the two man surveying team.  This survey data was then imported into AutoCad and processed for final presentation, with schedule information added to the drawings as required. Boscastle Tree Management Survey.

The Outcome
As a result of CEC’s input the client now has a reliable and detailed resource to inform and support their management activities within the River Valency Valley in order to minimise the potential effect of tree related debris in the event of flooding.
Feedback:

At Boscastle is was very important to have a detailed report which addressed the objectives as set out in the brief. CEC provided such a report, and are very committed to providing a quality service. The staff are experienced, knowledgeable and had an understanding of the objectives and requirements, and had a very professional attitude.

Since this project, the Environment Agency have engaged the services of CEC on three similar Tree & Vegetation Management Surveys, and I, on behalf of the Environment Agency, have no hesitation in recommending CEC.

David Stears, Principal Engineer
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