Sediment Technology—Integral to Present at Western Dredging Association Summit
June 23, 2017

Senior Consultants Gene Revelas and Benjamin Starr, P.E., will attend the Western Dredging Association (WEDA) Dredging Summit & Expo ’17, held in Vancouver, British Columbia, on June 26–29, 2017.  Mr. Revelas will give a presentation on mapping disposed dredged material using sediment profile imaging (SPI) for the Douglas Harbor Dredging Project in Juneau, Alaska.  Mr. Starr is coauthor on a paper on post-dredging sediment stabilization to be presented by Donald F. Hayes, Ph.D., P.E., a recognized environmental dredging expert and Chair of the Department of Civil and Environmental Engineering and Construction at the University of Nevada, Las Vegas.

On Tuesday, June 27, during Session 2B—Innovative Surveying and Dredge Monitoring, Mr. Revelas will present “Mapping Dredged Material and a Sand Cap Using Sediment Profile Imaging and a Semi-automated Image Processing System.”  SPI technology can be used to gather unique and detailed information on surface sediments left behind after dredging and on disposed dredged and cap material layers.  This information can help optimize the design of sediment sampling efforts and assist in the interpretation of such data.  This presentation, prepared in collaboration with Integral Consultants Brandon Sackmann, Ph.D., and Ian Stupakoff, will describe the SPI camera system, the biological and physical parameters measured in SPI images, and iSPI—Integral’s image analysis platform.

Mr. Starr’s paper, “Post-dredging Residual Sediment Stabilization,” will be presented on Thursday, June 29, as part of Session 7A—Sediment Remediation.  Mechanical and hydraulic activities associated with dredging leave behind loosened sediment, which can make sediment surfaces more susceptible to erosion.  If these sediments are contaminated, post-dredging erosion can potentially introduce contaminants into the water column.  This presentation will delve into the strategies to stabilize residual sediment, thereby reducing sediment and contaminant loss.

Mr. Revelas is a leading scientist on contaminated sediment and dredged material management issues.  He has extensive experience with the use of SPI technology for characterizing dredged material disposal sites and benthic habitats and has applied this technology at freshwater, estuarine, and marine sites.

A civil engineer, Mr. Starr has conducted site investigations, engineering analyses and design, and comparative analyses of remediation technologies at sites with impacted sediments, soil, and groundwater.  He has prior experience as an ecologist and has performed ecosystem-scale research of global climate change processes.

The WEDA Summit provides a forum for attendees to learn and exchange knowledge related to dredging, navigation, and marine engineering and construction.

For more information about Integral’s related capabilities, contact Gene Revelas at