Our website uses cookies so that we can provide a better service. Continue to use the site as normal if you're happy with this, or find out how to manage cookies.


A strategic framework to guide decisions on maintenance dredging and ensure sustainability.
A record of known demand for the re-use of dredged materials, ranging from environmental enhancements and construction projects.
A neutral and open forum for planning and implementation of maintenance dredging operations.
Maintenance dredging within the tidal Thames encompasses a wide range of topics. Click on the links within the text below to find out more information on each of these subjects.
Available for download as a PDF document.
The Dredging Licence Application Form is available to download as a Word document or as a PDF. Detailed guidance is also available.
Using shared data DSIS provides details of environmental sensitivities in the vicinity of dredge sites.