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PIANC Dredging 2015 – Environmental Monitoring for Dredging and Reclamation

Dr Kevin Black’s presentation about environmental monitoring & control of sediments during dredging and reclamation works in the Thames (London Gateway) has been accepted for Dredging 2015 conference, Savannah, Georgia, U.S.A. October 19-22, 2015.

Dr Kevin Black’s presentation, “ENVIRONMENTAL MONITORING AND CONTROL OF SEDIMENTS AROUND DREDGING AND RECLAMATION WORKS, THAMES UK”, has been accepted for Dredging 2015 conference (Savannah, Georgia, U.S.A. October 19-22, 2015).

The requirements for management of dredging with respect to environmental considerations continue to grow and develop. In tandem, there has also been a move of responsibility for this matter down the supply chain directly to contractors. This is applicable in dredging of the Thames estuary in the UK for the new London Gateway Port project. This paper provides insight into the aspects of sediment management that have been placed with the dredging contractor by the developer.

The paper covers how suspended sediments measurements have been used to manage and control day-to-day dredging operations and assess compliance with the requirements of the formal Environmental Impact Assessment undertaken for the London Gateway port development. This includes the equipment and the experiences of running the monitoring equipment (located over 32 km) in real time and characterising dredging and reclamation activities.

The results include monitoring results gathered across the estuary from before the start of dredging in March 2010 and during dredge operations. Results of monitoring taken directly within plumes from dredging and reclamation operations and results from discharges from the reclamation are presented. The paper includes discussion about the variation in results on different spatial and temporal scales and how this links through the geomorphology of the Thames to tides, tidal cycles (spring / neap) and seasonal variations. The linkage of such variations to other factors such as freshwater discharge to the estuary system and to other activities and discharges (i.e. non-dredging activities) is also discussed.

Title: Environmental Monitoring and control of sediments around dreding and reclamation works, Thames, UK.

Topic: Environmental effects of dredging- latest research and field experience

Co-Author(s): Katherine Read, Daniel Leggett (both Dredging International during project)

Dredging 2015: Moving and Managing Sediments. Savannah, Georgia, U.S.A. October 19-22, 2015

The Dredging 2015 conference is a four-day technical specialty conference which brings together professionals and practitioners from all parts of the world to discuss a broad spectrum of topics related to dredging. The theme for Dredging 2015, Moving and Managing Sediments, will include presentations on all types of dredging projects from navigation channel deepening and maintenance to environmental restoration to the development of new ports and marinas.

Dr Kevin Black (Technical Director at Partrac Ltd) is a geological oceanographer with over 8 years industry and 15 years of research experience. He is one of the UK’s leading experts in coastal and shelf sea sedimentary processes, with extensive field experience and over 40 peer reviewed publications. Kevin’s field experience spans Chief Scientist roles on ocean research cruises (including leadership and co-ordination of the DTI 2005 Strategic Environmental Assessment #5), to collection of a range of marine data types (metocean, benthic environmental, sediment transport) for coastal and offshore projects within the dredging, marine energy and offshore wind sectors. He also works as a Consultant, and has provided advice and guidance in the sediment management arena to a range of clients in relation to coastal infrastructure development projects and associated EIAs. He led a high level review of the impacts of offshore renewable structures on coastal processes for NERC/Defra, and has been involved in coastal processes impact assessment and ES delivery for four major OWF developments. Kevin was the chief editor of the Geological Society Publication 139 (Sedimentary Processes in the Intertidal Zone), and is presently the Project Director for the Scottish Government’s MRCF TiME (Turbulence in Marine Environments) project.

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