Boston Barrier Will Not Increase Flood Risk Downstream

Boston Barrier Will Not Increase Flood Risk Downstream

01 July 2015

EA has completed modelling that has confirmed that river levels, and therefore flood risk, downstream of the proposed Boston Barrier will not change once the Barrier is built and subsequently operated.

There was concern that the Barrier may increase flood risk downstream. The evidence EA has compiled shows that this will not happen and proves that the Barrier will work to reduce the risk of tidal flooding in the Borough of Boston and to manage water levels through Boston.

This evidence will now be submitted as part of EA’s application for a Transport and Works Act Order (TWAO), legislation to approve large infrastructure projects that impact on transport systems, along with the preliminary design for the Barrier.

A successful TWAO application would give all the permissions needed to build the barrier in one go. EA plans to submit the application to the Secretary of State for Transport in early 2016. The Secretary of State will then manage a formal public consultation; in the mean time, EA has said it will organise more public consultation events this year to show the latest barrier designs and information.

At the present moment, EA’s intention is to only construct a single ‘up or down’ barrier which has no benefit in advancing the ‘Water Level Management’ within Boston above the barrier, or providing any control system which could support WLM in future. IWA, in common with RYA and other local leisure and amenity organisations, and reports EA themselves have commissioned, believe this is a major missed opportunity both in Boston itself and because of its negative effect on the Fens Waterways Link project. IWA is discussing with other stakeholders how this can be changed, which may include objecting to EA’s TWAO.

Photo: River Witham, Boston (photo by Penny Carnell)

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