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GSI to host webinar on geosynthetics and erosion control

Events | July 12, 2019 | By:

The Geosynthetic Institute (GSI) will sponsor a webinar, “Geosynthetics in Erosion Control,” on June 12, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations.

The estimated society cost of landslides in the U.S. is estimated at $2–5 billion and worldwide might even approach $10 billion. The percentage triggered by surface erosion is certainly a major contributor. While the mechanisms of soil erosion are well-known (consisting of detachment, transportation and deposition) its control is largely empirical. This webinar will present the various approaches using:

  • temporary biodegradables (natural materials)
  • long-term polymeric (geosynthetics)
  • hard armor systems (stone, concrete, etc.)

Full-scale field tests in Cincinnati, Ohio, will substantiate the positive influence of turf reinforcement mats and product testing including ASTM (small scale), TRI (large scale) and field test sites.

Two design approaches will be shown with numeric examples. They are the USLE method for slopes, and the velocity/shear stress methods for channels and ditches. They will be critiqued accordingly.

A summary of the webinar and recommendations will be offered including an appeal for instrumented field monitoring research and subsequent analytic modeling.

Participants will become familiar with the classification methodology for this enormous group of products used under the general term of erosion control and mitigation. The status of testing will be described and illustrated for both index and performance testing. Full scale field acceptance evaluation will be mentioned.  Lastly, design for the two quite different scenarios, slopes versus channel/ditches will be illustrated with numeric examples.  Conclusions and recommendations will be offered accordingly.

This webinar will be beneficial to public and private owners of locations subject to erosion, as well as contaminated harbor and riverbed sediments insofar as our hydraulic infrastructure is concerned; federal, state and regional hydraulic, geotechnical, and geoenvironmental engineers; engineers from municipal districts and townships; private and municipal land developers; general civil consulting engineers; testing laboratories servicing these organizations; manufacturers of geosynthetic materials; contractors and installers of geosynthetic materials; academic and research groups; and others desiring technically related information on this important aspect of our hydraulic infrastructure.

The webinar’s instructor, Dr. Robert M. Koerner, is professor emeritus of civil engineering at Drexel University, and founder and director emeritus of the Geosynthetic Institute.

Webinars cost $200.00 for GSI and GMA members, and $250.00 for nonmembers. Successful completion of a multiple-choice test after the webinar carries 1.5 professional development hours (PDH).

For more information or to register, visit

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