Dr Turnpenny developed an innovative model used as the basis for developing new water quality standards for the Thames Tideway.
The Tideway Fish Risk Model (TFRM) was used to predict the effects of low dissolved oxygen caused by sewage discharge on fish populations in the Tideway. It also enabled testing of various engineering options, including the Thames Tideway Tunnel and sister project, the Lee Tunnel.
Preparations of the planning application for the Thames Tideway Tunnel project began in 2010 with the scheme deemed to be a Nationally Significant Infrastructure Project (NSIP), consented by the Planning Inspectorate through a Development Consent Order.
There was a strong requirement from regulators to minimise the impact of the scheme within the intertidal and subtidal zones of the river due to its importance as a habitat for migratory fish and other wildlife.
THA Aquatic were responsible for preparing the fisheries component of the Environmental Impact Assessment (EIA) for the scheme. Working closely with the project engineers, we helped identify and resolve potential objections from the regulators, optimising the schemes design from an ecological perspective.
As part of the baseline characterisation for the project we undertook monthly juvenile fish surveys and analysed Environment Agency fish survey datasets dating back to 1992. Our specialists presented at stakeholder engagement workshops throughout the project and contributed to submissions during the DCO Examination process.
On receipt of the development consent order THA Aquatic were retained by Tideway to continue to provide expert advice and implement the mitigation and compensation strategy for aquatic ecology.
“THA Aquatic have provided expert fisheries inputs on the Thames Tideway Tunnel project since 2010. Their pragmatic approach to finding solutions to issues raised by stakeholders during the design development and EIA stages of the project helped to ensure that there were no sustained objections to the scheme on aquatic ecology grounds at public examination. Over the years their specialists have represented Tideway at a number of public fora and helped to promote the long term environmental legacy of the project through their Tideway funded work on fish habitat refuges.”
Alan Lewis: Thames Tideway Tunnel
For more information on the Thames Tideway Tunnel.