International Dredging Review

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Attendees at the Brazil Chapter meeting of the Western Dredging Association (WEDA) heard 31 technical papers during the three-day event held December 9 through 12 2007. Twenty companies brought exhibits to the conference which was attended by approximately 200 people.

The meeting was held at the Intercontinental Hotel Rio de Janeiro.

The attendees were mostly from Brazil however 11 other countries were represented said Larry Patella executive director of WEDA including Argentina Canada Colombia Finland the Netherlands the U.S. and Venezuela.

A boat tour in the Rio de Janeiro harbor was featured Sunday the first day of the conference.

Monday morning Paulo Rodriguez event host and WEDA board member welcomed the group to Brazil.

Included in the program was a site tour to a dredging project conducted by Jan de Nul. The site tour was limited to Brazilian citizens for security reasons.

The technical program included:
Session: Dredging History and Policy in Brazil chaired by Dr. Hildebrando DRHIMA UFRJ Brazil

Pioneer Dredging Projects in the Bay of Guanabara by Antonio Portellada Cunha Civil Engineer Terpasa Brazil; Port Authority´s Regulations in Dredging Activity by G. Huet de Bacellar Sobrinho Management of Ports and Coasts Brazilian Marine Authority; Planning and Execution of Dredging Works by H. de Araujo Goes Filho Professor at the DRHIMA Federal University of Rio de Janeiro; Typical Dredging Practices in the United States by Robert Randall Texas A&M University; Policy Operations for the Development of Dredging Activities in Brazil by Dr. Eliane Fadda CENTRAN Brazil;

Session: Environmental Aspects Of Dredging and Disposal chaired by Paulo Rodriguez ABD-WEDA Brazil

Strategy and Environmental Criteria Applied in the Definition of Ocean Dredge Disposal: The Case of the Port of Ubu Anchieta – Espírito Santo by Mauricio Torronteguy; M. Marcelo Travassos & Helio Cardoso Junior Brazil; Sepetiba Bay Port Access Channel and Harbor Basin Dredging And Reclamation Work by Jaap Kok Boskalis/Deme and Rainer Verhoeven CSA ThyssenKrupp Brazil; Navigation Issues on the Amazon North Channel by Susana Vinzon Federal University of Rio de Janeiro;

Session: Environmental Aspects of Dredging and Disposal II chaired by Dr. Robert Randall.

Impact of Environmental Restrictions on Dredging Projects by Bill Hanson Great Lakes Dredge and Dock Company USA; CAD Pit Design and Long-Term Risks for Contaminated Dredged Material at Piaçaguera Canal Brazil by Paul R. Schroeder Thomas D. Borrowman and Stephen A. Pranger U.S. Army Engineer Research & Development Center; Short-Term Risks Associated with Confined Aquatic Disposal of Contaminated Dredged Material at Piaçaguera Canal Brazil by Joseph Z. Gailani Paul R. Schroeder Stephen T. Maynord Thomas D. Borrowman Ronald D. Heath Guilherme R. Lotufo Susan E. Bailey and Keith Martin U.S. Army Engineer Research & Development Center;

Session: Dredging Monitoring/Modeling chaired by Mauricio Torronteguy Brazil

Dredging Monitoring Systems for Marine Excavators: Existing Technology and Future Developments by Alex Kempkes Sea Tools BV Holland; Monitoring of the Turbidity Plumes Generated During Disposal of Dredged Material in Open Sea/Open Water by M. Marcelo Travassos; Carlos Augusto Schetinni; Alexandre Pasolini and Mauricio Torronteguy; CEPEMAR; Av. Brazil.

Session: Management of Contaminated Sediments chaired by Philip Spadaro Arcadis.

A Risk Management Case Study: Selecting an Effective Risk-Based Remedial Alternative for Contaminated Sediments by J. Holder and N. Bullard Arcadis BBL; P. White CH2M Hill; D. Michael Neptune & Co; H. Thurston Battelle and M. Parker U.S. Navy; Past and Future Trends in Environmental Dredging Projects by Ram Mohan Anchor Environmental LLC; Thea Foss Waterway Remediation Project: An Example of the Risk-based Multi-Technology Approach to Contaminated Sediment Management by Philip Spadaro Arcadis BBL and Mary Henley City of Tacoma Washington;

Session: Dredging Tools and Projects I chaired by Paulo Rafael Vale do Rio Doce Brazil

Modeling of Dredged Material Disposal in Antonina and Paranagua Bays by A.C.R. Lammardo M.R.F. Guimaraes R.B. da Rocha E.B. Boldrini; Applied Science Associates Brazil;. Dredging in Port of Tubarão by Paulo Henrique Tanure de Almeida Rafael Companhia Vale do Rio Doce Brazil; Inner Harbor Navigation Canal Dredging Project New Orleans by Lotufo Guilherme U.S. Army Corps of Engineers; Session: Dredging Tools and Projects II chaired by Paulo A. Grassmann Brazil Geotextile Tube Designs Applications and Case Histories by Jack Fowler Geotech Associates USA; Versatile Applications of Hydraulic Dredges by Bob Wetta Dredging Supply Company USA; The Use of Direct Hydraulic Propulsion in Dredging by Paulo A. Grassmann Hagglunds Brazil;

Session: Dredging and Ecology chaired by R.M. Pinotti Brazil

An Update on Dredging Impacts on Sea Turtles in the Southeastern USA: A Historical Review of Protection and An Introduction to the USACE Sea Turtle Data Warehouse by D. Dickerson and D. Pommer U.S. Army Corps of Engineers; Benthic Community Evaluation Under Dredging Stress Condition in the Harbor of Rio Grande Southern Brazil by R.M. Pinotti C.E. Corradi and C.E. Bemvenuti Brazil; Ayetoro Shore Protection Project – A Case Study of the Beneficial Use of Dredged Material by D. Olowokere Texas State University

Session: WEDA Environmental Commission Panel chaired by Craig Vogt US Environmental Protection Agency

Testing and Evaluation of Dredged Material Disposal in Open Water or On Land by Tom Fredette U.S. Army Corps of Engineers; International Guidelines for Environmental Assessment of Dredged Material Under the IMO’s London Convention by Craig Vogt; Key Factors in Designation of Ocean Disposal Sites for Dredged Material by Tom Fredette; WEDA’s Environmental Commission: Environmental Issues and Dredging – Working Together to Get the Job Done! – Open Panel Discussion led by Craig Vogt. Members – Paulo Rodriguez Thomas Fredette Philip Spadaro and Bill Hanson.

At the closing ceremonies Wednesday Paulo Rodriguez announced that a 2008 meeting of the chapter is planned for December 2008 in Sao Paulo and Ram Mohan presented the best paper awards.