This document discusses several major UK construction projects including nuclear power plants and infrastructure projects that will require large amounts of excavated material. It notes that Hinckley Point C, Sizewell C, Wylfa Newydd, Thames Tideway, and Crossrail projects will collectively excavate over 25 million cubic meters of material. The key issues discussed are how to best manage these large volumes of excavated materials in a sustainable way, dealing with the associated costs and timescales, and ensuring the proper regulatory tools and processes are in place. The document focuses on the Wylfa Newydd project in Wales and the approach of using a DoWCoP Masterplan Materials Management Plan to maximize reuse and recycling of excav

1. Nuclear New Build and
excavated materials
management
Liz Gray
The elephant in the room?

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3. UK projects
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Ø Hinckley Point C
Ø Sizewell C
Ø Wylfa Newyyd
Ø Thames Tideway
Ø Crossrail
~ 5.6M m3
~ 5.5M m3
~ 7.5M m3
~ 4.7M tonnes
~ 7M tonnes

4. Key issues
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Ø Major civils projects.
Ø Large excavation works, even if limited to
the deep excavations for the nuclear
island.
Ø Best solution for excavated materials?
Ø Retain on site to meet sustainability and
planning constraints (e.g. lorry
movements).
Ø Costs and timescales – forward
planning!

5. Do we have the right tools?
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Ø Bespoke permits – cumbersome, assumes excavated material is waste, expensive.
Ø CL:AIRE DoWCoP – how to adapt for ‘mega’ projects? Series of MMPs?
Ø Exclusion 2.1(c) from the WFD – evidence still required, not contaminated soils.

6. Wylfa Newydd
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Ø Main site plus associated development.
Ø Reprofiling the landform.
Ø Maximising materials reuse and recycling.
Ø Made Ground & natural soils.

7. Approach – DoWCoP: Masterplan MMP
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9. Thank you
Liz Gray
Liz.gray@atkinsglobal.com
07717 432192
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