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GEOSTRATA, the official bi-monthly magazine of the Geo-Institute, features articles written by and for engineering professionals. Articles cover the use of new technologies, construction techniques, business management, unique projects, and industry news along with providing leadership on educational, professional and public policy issues, showcasing the unique role and contributions of the geoprofessional.


GEOSTRATA is a complimentary Geo-Institute membership benefit. It is not available by subscription.

To receive issues of GEOSTRATA in the mail, join the Geo-Institute. ASCE members can select the Geo-Institute as their free Institute or add the Geo-Institute for just $30. Contact ASCE customer service at member@asce.org or by phone at (800) 548-2723.

Editorial Board

James L. Withiam, Ph.D, P.E., D.GE, M.ASCE

Merve Gizem Bozkurt, Ph.D., A.M.ASCE, Geosyntec Consultants

Jeff Dunn, Ph.D, P.E., G.E., D.GE, M.ASCE, Consulting Engineer

Ken Fishman, Ph.D., P.E., M.ASCE, McMahon & Mann Consulting Engineers

Brian Hubel, P.E., G.E., M.ASCE, U.S. Army Corps of Engineers, San Francisco District

Michael P. McGuire, Ph.D., P.E., M.ASCE, Lafayette College

Mary C. Nodine, P.E., M.ASCE, GEI Consultants

William K. Petersen, P.E., M.ASCE, Rimkus Consulting Group

Mark K. Seel, P.E., P.G,. M.ASCE, Langan

Chris Woods, P.E., D.GE, LEEDAP BD+C, M.ASCE, Densification, Inc.

Lucy Wu, P.E., M.ASCE, WSP USA


Geo-Institute Board of Governors


Charles V. Dinges – Publisher
Bradley Keelor – G-I Director
Laurie Shuster - Editor in Chief
Elizabeth Cuscino – Content Editor
Kristie C. Kehoe – Content Coordinator

Advertising Sales Managers

Liz Barrett, Tillman Gerald


GEOSTRATA is a forum for the free expression and interchange of ideas. The opinions and positions stated within are those of the authors, and not necessarily those of GEOSTRATA, the Geo-Institute, or the American Society of Civil Engineers (ASCE).

GEOSTRATA—ISSN 1529-2975—is published bi-monthly by ASCE, 1801 Alexander Bell Drive, Reston, VA 20191-4400 and is a free ASCE/Geo-Institute membership benefit, not available by subscription.

Address Changes:
ASCE/G-I members should e-mail memrec@asce.org, or log in to the ASCE website and click on “My Profile.” POSTMASTER: Send address changes to GEOSTRATA, 1801 Alexander Bell Drive, Reston, VA 20191-4400.

Copyright © 2019 by the American Society of Civil Engineers. All rights reserved. Materials may not be reproduced or translated without written permission from ASCE.