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Preface

This Proceedings contains 12 papers presented at the 13^th Great Lakes Geotechnical and Gcoenvironmcntal Conference (GLGGC) held in Milwaukee, Wisconsin, May 2005. Since major transportation infrastructure reconstruction was taking place in Milwaukee at the time of the conference, the conference theme addressed the role of geotechnical engineering in transportation infrastructure. The S810 million Marquette Interchange Project in the heart of downtown Milwaukee connects interstate highways 1 43, 1-94, and 1-794. The role of geotechnical engineering in such projects is significant. The conference was designed as a forum for discussion of the latest advances in geotechnical engineering applications for transportation infrastructure including earth retaining structures, deep foundations, and geotechnical /pavement engineering.

Each paper published in this Proceedings was peer reviewed by at least one reviewer before being accepted for publication. The peer review was conducted in accordance with the Geo- Institute standards and practices. All papers are eligible for discussion in the Journal of Geotechnical and Geoenvironmental Engineering and for ASCE award nomination.

The peer review of the papers was conducted by the following reviewers: Murad Abu- Farsakh, Khalid AJshibili, Tuncer Edil, Mohammed Elias, Richard Finno, Dante Fratta, Mnhammcd Gabr. Sam Helwany. Andrew Heydinger. Baoshan Huang. Robert Liang. Eyad Massad, Radhcy Sharma, Hani Titi, and Xiong (Bill) Yu.

I would like to express my appreciation to Nina McLawhom of the Wisconsin Department of Transportation who made this work possible. I would like to acknowledge the support of the following: ASCE Wisconsin Section, HNTB, CH2M HILL, Edward E. Gillen Company, and Professor Edward Betmbom. I would like to thank John Siwula for his help and support in planning and organizing various activities. I would also like to thank the Technical Session Chairs: Nina McLawhom, Bruce Pfister, Bob Amdorfcr, Steve Maxwell, John Siwula, and Therese Koutnik.

The 13^th GLGGC keynote speakers are Mr. Frank Busalacchi, Secretary, Wisconsin DOT and Mr. Jerry A. DiMaggio. principal geotechnical engineer and national program manager, FHWA. Their contribution to the conference is highly appreciated.

I would like to thank the authors and presenters of the papers for their contribution to the GLGGC. Special thanks are due to the following University of Wisconsin-Milwaukec individuals for their help in various conference activities: Jean Carlson, Mohammed Eiias, and Dan Mielke.

Finally, I would like to acknowledge Harold Olsen and Richard Wiltshire for their help and assistance, the Geo-Institute Technical Publication Committee, Carol Bowers, and Donna Dickert.