Newbury, West Berkshire

Completed October 2016

OVERVIEW

Winterbourne is a village within West Berkshire, located approximately four miles to the north west of Newbury within the Winterbourne Valley. The village has suffered from flood events in 1947, 1951, 1959, 1997, 1998 and 2000. In July 2007 approximately 100mm of rain fell in just a few hours, resulting in the flooding of 20 plus properties.

Ardent was commissioned by West Berkshire Council (WBC) in 2013 to undertake a full feasibility study, 1D-2D pluvial and fluvial hydraulic analysis and preliminary design of a Flood Alleviation Scheme, to support a funding application to the Environment Agency for Flood Defence Grant in Aid (FDGiA). The scheme was completed in October 2016.

This project is another example of where Ardent took a scheme from concept, through planning and on to delivery on site.

PROJECT DETAILS

Ardent undertook detailed hydraulic modelling to develop a scheme comprising the realignment of 380m of the existing Winterbourne River, which is classified as a main river, to the north of Winterbourne village,. In addition, the scheme involved the construction of a 300m length of flood defence bund with a maximum height of 2.4m and its associated control structures to form a flood storage reservoir with a capacity of approximately 22,000m3. The aim of the scheme is to intercept fluvial and pluvial flows, and store and release them in a controlled manner.

The scheme was successful in obtaining funding, with the support of residents and the local MP. In addition to taking the project through the Project Appraisal Board (PAB) process with the Environment Agency (EA), Ardent was commissioned by WBC to take the scheme through planning, and also undertook the detailed design as well as managing other members of the planning and design teams.

Throughout the process, a partnership approach was entered into with WBC, the EA, Winterbourne Parish Council and the Landowner.

Approvals from the EA and the Construction Engineer (as defined under the Reservoirs Act 1975) were secured in terms of technical and ecological requirements. Ardent supported WBC through the tender process and delivery on Site, assisting with challenges that arose during the construction process.

The scheme was completed in October 2016.