at Dounreay Site

Nuclear Restoration Services Dounreay required the development of a robust, high-confidence plan for decommissioning and demolition of the High Active Liquor Storage and Evaporation Facility, a legacy building with high dose rates, restricted access, significant amounts of contaminated liquor and waste with limited characterisation information available. The plan required underpinning with concept design, estimate and schedule.

Client and Location

Nuclear Restoration Services

Dounreay, Caithness, UK


February 2024

Key Skills & Competencies

Problem Definition

Methodology Development

Problem Solving and Decision Making

Portfolio and Programme Management

Project Implementation Engineering

Engineering Management

Safety and Environmental

Waste Management

Our Partners

Nuclear Decommissioning Limited, Shepley Engineers, Tetra Tec, RPS

Project Overview

React developed alternative strategic options for decommissioning and identified a preferred approach with significant potential cost savings and potential for considerably less waste containers required in future long-term storage at the site. React led the decision-making process, involving key site stakeholders, to reach an agreed way forward for the project.

The planning and design project was led by React, who were responsible for technical direction, integration of work packages, interface with the client stakeholders and project management. React were supported by a range of specialists from our partnering companies, including mechanical designers, waste specialists, safety and environmental assessors, structural engineers, blue collar decommissioning expertise and decontamination specialists. As part of the project, the team explored the benefits of decontamination versus non-decontamination approaches to arrive at an approach that adopted fit-for-purpose methods rather than a complex, highly-engineered decommissioning solution. This approach will deliver significant taxpayer savings and waste generation reduction as well as a significant reduction of the programme’s critical path.

Additionally, React set out a delivery approach for the full decommissioning lifecycle as a programme-based approach, whereby smaller development and delivery packages are implemented to tackle key risks and provide learning for subsequent packages. This avoids the risk associated with a single, complex major design project.

Want to know more?

Get in touch to find out more about React Engineering

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