March/April 2021 - 3

CONTENTS

FEATURES

Departments

COVER STORY

PRESIDENT'S MESSAGE

16 Novel Excavation Support for NYC Subway Improvements

DFI Strategic Goals Clarification . . . . 7

Sitotaw Y. Fantaye, P.E., Alice Arana, P.E., and Sean Butler, P.E.

EXECUTIVE DIRECTOR UPDATE

The DFI Message Travels . . . . . . . . . . . . 9
DFI ACTIVITIES

A summary of the winter planning
meeting, recap of the Middle East
Conference, updates on upcoming
events, the latest DFI Journal,
conference proceedings, FHWA
A-GaME webinar series and more . . 25

Hurricane Sandy caused serious damage to the main subway between Brooklyn and
Manhattan in New York City. Rehabilitating the infrastructure included new station
entrances at First Avenue in Manhattan, and adding a new electrical substation
nearby. An innovative excavation support system with pressed-in steel sheet pile
walls and a tied down jet grout subgrade was used, resulting in significant savings in
cost and time, while minimizing movement and settlement of adjacent structures.

REGIONAL REPORT
DFI of India . . . . . . . . . . . . . . . . . . . . . . . . . 53
EDUCATIONAL TRUST REPORT
Scholarship applications, WiDF
professional development grants,
DFI46 5K and upcoming events. . . . . 57
TECHNICAL ACTIVITIES UPDATE
Updates from the Sustainability and
Ground Improvement committees as
well as the Working Platforms
Industry-Wide Working Group. . . . . . 61
MEMBER PROFILE

Brook Brosi of USACE: a Geologist to
the Core . . . . . . . . . . . . . . . . . . . . . . . 67

71 Evaluating Lateral Bracing Code Requirements for Large Diameter Foundations
Jeffrey Donville, P.E., Jon Huff, P.E., Hannah Iezzoni, P.E., and
Dan Stevenson, P.E.

GUEST EDITORIAL
GBRs - Past, Present and Future . . . 97
LEGALLY SPEAKING

Establishing Type I Differing Site
Conditions. . . . . . . . . . . . . . . . . . . . . . . . . 101
DFI PEOPLE AND COMPANIES
News about people, companies and
products . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
IFCEE CONFERENCE PREVIEW . . . . . . 105
CALENDAR & AD INDEX. . . . . . . . . . 118

79 Rigid Inclusions and Piles for Mixed-Use
Redevelopment
Nina F. Carney, P.E., Melinda J. Hummel, P.E., and Nathaniel
Witter, P.E.

85 Panel Discussions on Geotechnical
Baseline Reports and Their Importance
Jim Morrison, P.E., P.Eng., Randy Essex, P.E., G.E., Conrad
Felice, Ph.D., P.E., P.Eng., D.GE, Steve Saye, P.E., Scott Wimmer,
Rick Kalson, Esq., and Jeramy Decker, Ph.D., P.E., P.Eng.

91 DFI45 Celebrates Family Legacies
Sebastian Lobo-Guerrero, Ph.D., P.E.

DEEP FOUNDATIONS * MAR/APR 2021 * 3



March/April 2021

Table of Contents for the Digital Edition of March/April 2021

TOC
March/April 2021 - Intro
March/April 2021 - 1
March/April 2021 - 2
March/April 2021 - TOC
March/April 2021 - 4
March/April 2021 - 5
March/April 2021 - 6
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