The North American Chapter of the
International Geosynthetics Society


International Geosynthetics Society

IGS North America 2019 Photo Contest Is Now Open

The IGS North America 2019 Photo Contest is open to all members of IGS North America. The contest will be open 1 October – 15 December 2018. First, second, and third place winners will be announced in February during the IGS North America General Assembly held at Geosynthetics 2019 in Houston, Texas.

Click on the pictures below to view the 2017 winners.

Take advantage of this great opportunity to demonstrate geosynthetics in action!  All entries should include a photo title, description, and photo credit.

  • Photos should clearly display a geosynthetic type/function in use
  • Photos should provide a clear understanding of what geosynthetic type/function or event is being demonstrated
  • Contestants must be an IGS-NA member in good standing

Contest photos will be used to promote the exemplary work of the geosynthetics community, raise awareness of the importance of your expertise, and add to the beneficial dialogue between professionals and the larger engineering community. Credit to the winning submissions will be given. Promote your work. Promote your field.

Submit photos here.  Thank you for your participation in the 2019 Photo Contest!

If you have questions about the IGS-NA Photo Contest, please contact


Not a member? Join now, gain access to valuable engineering resources (such as the official journals of the International Geosynthetics Society), and share your work through the photo contest! 

IGS North America Offers FREE Membership for Students

Graduate and undergraduate students: please consider joining IGS North America for free.  Registration can be completed online at As a member you will receive the IGS News, online access to the Geosynthetics International Journal and Geotextiles and Geomembranes Journal, and secure access to various International Geosynthetics Society conference proceedings (totaling more than 1800 technical papers). You’ll also receive an IGS lapel pin, access to the IGS online membership directory, and eligibility for IGS Awards, including the prestigious IGS Student Paper award program ($1000 scholarship to attend a regional conference) and/or IGS Young Member award.

Current IGS North America members – PLEASE forward this membership offer to current university/college students.

SEE ALSO: 2019 Student Paper Competition


NAGS Announces 2nd Presentation of Its 2014 Webinar Series

Bob MackeyEvent: NAGS 2014 Webinar Series: Presentation #2
Date: Wednesday July 9, 2014, 1:00 – 2:00 pm EDT
Location: Online Webinar


NAGS is very pleased to announce the 2014 Webinar Series:Presentation #2:
“Composite Drainage Nets – Design and Testing”

Presented by:
Bob Mackey, P.E., BCEE
S2L, Incorporated
Maitland, Florida, USA

DATE: Wednesday July 9, 2014, 1:00 – 2:00 pm EST

ABSTRACT: The development of composite drainage nets (CDNs) (a.k.a. “geocomposites”) has advanced from the initial biaxial nets to tri-axial nets to the current composite drainage products of various geosynthetic materials and structures. The use of CDNs requires a fundamental knowledge of the CDN components and the specifications for those materials.

This North American Geosynthetics Society webinar will address the various design, testing and installation issues one must consider with composite drainage nets. Issues include:

  • Various CDNs and their components
  • Ply adhesion (geotextile/geonet)
  • Flow pattern considerations
  • Reduction factors
  • Creep reduction estimates and testing
  • Transmissivity testing
  • Design specifications (cap and leachate collection)
  • Installation issues
  • Construction and historical issues

ABOUT THE SPEAKER: Mr. Mackey is a civil/environmental engineer with 28+ years of experience in the solid waste management field. Bob is currently president of the North American Geosynthetic Society and Chairman of the ASTM International Committee D35on Geosynthetics. Mr. Mackey is an adjunct professor at the University of Central Florida, former co-instructor for the ASCE continuing education course “Design of Waste Containment Liner and Closure Systems,” and a member of ASCE’s Body of Knowledge Committee, 2nd Edition. Bob has received ASTM’s Award of Merit (the association’s highest award), and he has been honored with the designation of Fellow by ASTM, ASCE and the Florida Engineering Society.

$100 – Presentation #2 MEMBER Fee: NAGS / CGS / IGS
$300 – Presentation #2 NON-MEMBER Fee ( Save money and become a member of NAGS today! )
$25 – Presentation #2 NAGS Student Member Rate ( Students may apply to NAGS at no charge for membership! )

PDHs: Professional development credit will be available for each participant paying a registration fee.

GROUPS: Small groups of up to five people are welcome to participate for one registration fee. Groups larger than five must pay a second registration fee.


NOTES: All fees are in USD. Why not join NAGS for $75 USD? Please see for details.

NAGS – Providing leadership in advancing the education and research of geosynthetics