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Dredging and Sustainability How wide is the Gulf?

Guidance on Dredging

Nick BrayNick Bray

© HR Wallingford 2007

Dredging and Sustainability

“I have a dream…..”Martin Luther King, Jr, 1963



Dream

Concept

Implementation

Reality



Conference Title:“Dredging and Sustainability”

What is Sustainable Development?“…development that meets the needs of the present without compromising the ability of future generations to meet their own needs.“

Brundtland Commission, 1987



Old Thinking:DreamConceptDesignEffect on EnvironmentFine tune to reduce effectImplementReality



New Thinking:DreamUnderstanding of total environmentConcept development within environment (Building with nature)Design with environmental enhancementImplementationReality



Simple Question:

How?

Simple Answer:

With specialist guidance


Guidance

Types of Guidance

General text booksTechnical papers and conference proceedingsSpecialist organisations (PIANC, CEDA etc)Research InstitutesConsulting firmsContractorsWebsites


Books

Fundamentals of Hydraulic Dredging. T M Turner, 1996Dredging: A Handbook for Engineers. R N Bray et al, 1997Handbook of Dredging Engineering. J B Herbich, 2000Dredging in Coastal Waters. Ed. D Eisma, 2005The Environmental Effects of Dredging. Ed. R N Bray, 2008


Conferences and Seminars

Proceedings of the World Dredging Conferences (WODCONs)Proceedings of the CEDA Dredging DaysProceedings of Conferences by WEDA, EADA etc.

IADC Seminars on DredgingIADC/CEDA Seminars on the Environmental Aspects of Dredging


Dredging Leaflets and Booklets

Dredging - the facts. 1999, PIANC, IADC, CEDA, IAPH and WODADredging – the environmental facts. 2001. (Same sponsors as above)Dredging for Development. IADC. 2004.Dredging Costs Standards, 2005. CIRIA (under revision)


PIANC Publications (1)

Dredged material management Guide. 1998Environmental Guidelines for Aquatic, Nearshore and Upland Confined Disposal Facilities for Contaminated Dredged Material. 2002Ecological and Engineering Guidelines for Wetlands Restoration in relation to the Development, Operation and Maintenance of Navigation Infrastructure. 2003Biological Assessment Guidance for Dredged Material 2006Environmental Risk Assessment of Dredging and Disposal Operations. 2006


PIANC Publications (2)

In the pipeline:Management and reclamation of dredged material and use of existing confined. 2008.Best Management Practices applied to Dredging and Dredged Material Disposal Projects for Protection of the Environment. 2008Dredged Material as a Resource, Options and Constraints. 2008Environmental Aspects of Dredging and Port Construction around Coral Reefs and Cold Water Hard Bottom Benthic Communities.


Websites

CEDA: www.dredging.orgIADC: www.iadc-dredging.comPIANC: www.pianc-aipcn.orgUS Army Corps of Engineers: www.wes.army.mil/el.dotsDredgers: www.dredgers.nlDredging Bibliography: www.dredgeline.netDredging news: www.sandandgravel.com

http://www.iadc-dredging.com/

http://www.dredgers.nl/

http://www.dredgeline.net/


Consulting Firms

General Maritime Consultants• Overall planning

• Maritime structures

• General dredging matters

• Water flow and modelling (with specialist modelling consultants, if necessary)


Consulting Firms (Cont.)

Specialist Dredging Consultants• Overall Planning• Data acquisition• Dredgers and Operations• Productivities and costing• Environmental Effects• Contracts and Tendering• Support during Works


Contractors

General dredging advice

Plant lists

Plant availability

Outline Method statements

Budgeting


When to Obtain Guidance on Dredging

DreamUnderstanding of total environment*Concept development within environmentDesign with environmental enhancementImplementationReality

* Guidance on total environment often required


SHOCK!


Conclusions

Have your dreams

Take advice early

Build with nature

Monitor the results

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