Zoom on Economic opportunities modelling

The modelling undertaken has provided significant and valuable information on the economic aspect of a range of sediment uses across the CEAMaS Partner Countries.

The sediment uses modelled are:

  • Land Reclamation
  • Wetland Creation/Building with Nature
  • Brick Manufacture
  • Road Sub-base Construction
  • The AMORAS Facility
  • Disposal on Land
  • The Slufter Facility
  • Placement in an Underwater Cell
  • Disposal at Sea

Economic modelling results are presented as direct cost and direct, indirect and induced impacts on Gross Domestic Product (GDP) and Employment. The direct economic impact contribution to GDP is equivalent to the direct project cost. The total economic impact is provided by the sum of the direct, indirect and induced impacts, both for GDP and employment.

Results and conclusions

  • Sediment reuse can be directly cost competitive with traditional disposal approaches, depending on the specific site or project and the market conditions.
  • Sediment reuse provides generally greater positive economic impacts on both GDP and employment than traditional sediment disposal.
  • Sediment reuse provides ‘savings’ or benefits (both economic and environmental) on non-disposal of the sediment
  • Sediment reuses may provide new infrastructure of an environmental type, e.g. a wetland or of an engineering type, e.g land reclaimed, road sub-base, brick etc.
  • The economic impacts generated from sediment reuse may be permanent where the sediment reuse project is continuous (e.g. AMORAS, brick production) or where the sediment reuse creates an infrastructure (e.g. land reclamation or wetland creation). This long term economic impact is very important, highlighting the potential long term economic benefits of sediment reuse.
  • Sediment reuse as a replacement for traditional quarry based material can be significantly more direct cost competitive with the additional non-economic environmental and societal benefits. e.g reclaiming land with dredge material versus reclaiming the land using quarry based material trucked to the land reclamation site.


Economic opportunities studies to go further: Find here descriptions and links to download detailed documentation on CEAMaS investigations

  • Comparison of Sediment Reuse with Traditional Sources

This report presents the results of an economic modelling analysis to compare the use of dredged sediment for specific civil engineering applications with the use of more traditional quarry based sources. The economic model is presented in the Final Report. These results are presented as direct project costing and broader economic impacts as measured by Gross Domestic Product (GDP) and employment.

A range of different Civil Engineering applications have been analysed to compare the economic aspects of using dredge sediment or traditional quarry based material. These are Land Reclamation (Ireland), Road Sub-Base Construction (Ireland and France) and Brick Manufacture (France). For each application economic modelling is undertaken with the results presented as Direct Costs and Impact on Gross Domestic Product and Employment.

Download the report “Economic Modelling Comparison of Sediment Reuse with Traditional Quarry Based Material” 


  • Market and Demand for Dredged Sediment

This report presents a review of the current status of supply and demand for dredged sediments across the four CEAMaS Partner Countries and also for the United Kingdom. This is the first such review undertaken for the Partner countries and includes a summary of the current potential market and demand, specific potential uses identified where there may be a demand and specific market or demand issues identified based on the analysis undertaken.

The work was undertaken as a desk based literature review and data gathering exercise with appropriate analysis by Partner Country with specific information gathered for Ireland and the United Kingdom by Cork Institute of Technology, for the Netherlands by TU Delft, for Belgium by the Belgium Building Research Institute (BBRI) and for France Cd2e. The key reference material is also fully cited.

Download the report “Market and Demand for Dredged Sediment


  • The Economic Opportunities for Sediment Reuse

This report provides the detail of the economic modelling work undertaken. It outlines the different dredge sediment use scenarios which have been investigated for the different partner countries, presents an overview of the economic modelling approach applied, provides details on the specific economic methodologies applied for direct project costs and direct, indirect and induced economic impacts, investigates and provides a detailed economic analysis for the range of dredge sediment scenarios identified for each partner country, analyses the results and presents the primary conclusions of the economic modelling work. This is new and innovative work in the field of dredge sediment management and presents direct project costing and the broader economic impacts of a project as measured by the Gross Domestic Product (GDP) and Employment.

A range of dredge sediment management scenarios have been identified including land reclamation, wetland creation, brick manufacture, road sub-base construction, managed disposal and disposal at sea. Each scenario is briefly described and the primary operational processes are presented in a process diagram format. An overview of the economic modelling approach is presented including providing details on the specific economic methodologies applied for direct project costs and the direct, indirect and induced economic impacts (GDP and Employment). The economic model outputs include direct project costs and the economic impacts for the projects/scenarios investigated, with comparison of the model results for the different scenarios presented for the individual partner countries.


Economic opportunities analysis_Final Report

Economic opportunities analysis_Appendix A

Economic opportunities analysis_Appendix B

Economic opportunities analysis_Appendix C

Economic opportunities analysis_Appendix D