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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 or by phone at (800) 548-2723.

Editorial Board

James L. Withiam, PhD, PE, D.GE, M.ASCE, D’Appolonia

Mark K. Seel, PE, PG, M.ASCE, Langan

J. Tanner Blackburn, PhD, PE, M.ASCE, Hayward Baker

Jeff Dunn, PhD, PE, D.GE, GE, M.ASCE, Arup

Ken Fishman, PhD, PE, M.ASCE, McMahon & Mann Consulting Engineers

Brian Hubel, PE, GE, M.ASCE, the U.S. Army Corps of Engineers, San Francisco District

Michael P. McGuire, PhD, PE, M.ASCE, Lafayette College

Peter G. Nicholson, PhD, PE, D.GE, F.ASCE, Consulting Engineer

Mary C. Nodine, PE, M.ASCE, GEI Consultants

William K. Petersen, PE, M.ASCE, Schnabel Engineering

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

Geo-Institute Board of Governors


Stefan Jaeger – Publisher
Dianne Vance, CAE – Director of Advertising
Bradley Keelor – G-I Director
Elizabeth Cuscino – Content Editor
Kristie C. Kehoe – Content Coordinator
Sean Richardson – Production Manager

Advertising Sales Managers

Amy Hakim, Kelli Nilsson, Brooke King


THOR Design Studio


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, 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 © 2016 by the American Society of Civil Engineers. All rights reserved. Materials may not be reproduced or translated without written permission from ASCE.