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Setting a new global standard

Designed and developed by Harwich Haven Authority and commercialised by Haven Dredging, Tiamat offers port authorities and dredging companies a cleaner, greener, cheaper and more efficient method of dredging.

Working with nature, for nature, and to sustain nature.

Tiamat is nature’s answer to dredging in a responsible and sustainable method,
whilst streamlining the process and saving money, time and resources.

Dredging with Nature

Tiamat offers port authorities and dredging companies a cleaner and greener method of maintenance dredging, that is easy to deploy, adaptable and at a lower cost.

An effective method of maintenance dredging that is adaptable and easy to deploy.

Environmentally friendly maintenance dredging, alongside nature and for the benefit of nature.

Tiamat reduces the overall cost of dredging, without compromising on productivity.

Awards & recogntion


The use of the Tiamat represents an innovative approach to undertaking maintenance dredging operations in ports and harbours. The technology works with tidal processes to minimise the loss of fine sediments from the estuarine system, supporting the natural evolution of estuarine habitats such as mudflats and saltmarsh which host important populations of waterbirds and other species. The use of Tiamat avoids the need to dispose of dredged sediment at disposal sites, which are often located offshore at some distance from the location of dredging. This alternative approach to dredging therefore minimises the generation of waste material and greenhouse gas emissions associated with traditional disposal methods.

Matthew Simpson BSc MSc CBiol MRSB, Technical Director, Environment, HaskoningDHV UK

Research and performance

To meet our goals and to support our customers in reaching theirs, we must work together. At Haven Dredging we collaborate with our stakeholders – sharing knowledge helps us work towards our mission to deliver environmentally friendly, sustainable and cost-effective dredging.

Discover how Tiamat supports seaport leaders’ commitment to sustainability, by reducing their carbon footprint and striving towards achieving net zero, clean energy and the health of coastal ecosystems.




Whether you have a question or are ready to start your project, the Haven Dredging team is happy to help. Get in touch and we will support you with the best solution for your project.

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