Monthly Archives: April 2017

New York City 46th Street Vent Plant

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46th St. Jet

Given the presence of dense, bouldery glacial till from approximately 20-30 feet below ground surface,  permeation grouting was selected for groundwater control to bedrock beneath Posillico’s structural secant pile excavation support  for the new 46th Street Vent Plant in New York City.  Jet grouting was also used to close gaps around a water main that traversed the excavation.  Read about this challenging project, published in this month’s issue of  ADSC’s Foundation Drilling magazine, here. 42017 Moretrench_Posillico

You can read more about Moretrench’s Grouting and Groundwater Control Services here.


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The Metropolitan Section of the Geo-Institute/ASCE will host

“Geotechnical Engineering: Adapting to the Unknown”


Thursday May 11th, 2017

Hotel Pennsylvania

401 7th Avenue @ 33rd Street

New York, NY 10001

This 1-day seminar is packed with informative presentations on local area projects including

“Highly Loaded Tensile Elements Installed Many Floors Beneath 390 Madison Avenue”

by Moretrench Senior Engineer Michael McNicholas.

This paper discusses the technical and logistics challenges of foundation installation for retrofit of an existing building that included the addition of several new floors.

Q/A sessions, networking opportunities, exhibits, and Professional Development hours round out the day.  For the full program and registration details, see the event flyer.

Colorado School of Mines Annual Underground Grouting and Ground Improvement Short Course

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Moretrench, Colorado School of Mines, Annual Short Course

This premier 5-day short course covers grouting methods; ground freezing for shafts, tunnels and cross passages; and construction dewatering systems. More than 35 presentations are scheduled covering engineering, equipment, materials and methods, plus off-campus field and on-campus laboratory demonstrations, all by internationally recognized industry experts, makes this a must-attend event for owners, designers, contractors, consultants and suppliers. Take advantage of the many networking opportunities and earn while you learn, with course completion offering 3.5 CEUs.

Moretrench is a regular participant at the event, with three presentations being made this year:

Registration is now open. For full information, visit here.

Moretrench’s Jon Bennett to Present at the ADSC Mid-Atlantic Chapter Drilled Shaft Seminar

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The ADSC mid-Atlantic chapter of the International Association of Foundation Drilling (ADSC) will host a drilled shaft seminar on April 27th, 2017 at the Turf Valley Resort, Ellicott City, MD.

Engineers, contractors, inspectors and anyone interested in the advancement of deep foundations in the mid-Atlantic region will benefit from informative presentations by experts in the field, including Moretrench’s Jon Bennett, P.E.   Plan to arrive the day before and enjoy a morning round of golf and an evening welcome reception.

For registration details and more information, go to

ASCE Hudson Valley Branch Meeting to feature Moretrench Rapid Response Project

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Old Croton B

Moretrench’s emergency response capability is second to none, and this was evidenced when the historic Old Croton Aqueduct in Yonkers, NY, was compromised by a significant landslide when a portion of the  original retaining wall failed.  Moretrench’s Michael Fattorusso and McLaren Engineering’s Thomas Broderick will present an interesting and informative case study on the challenges of installing a replacement retention system at the:

ASCE Lower Hudson Valley Branch Meeting

Wednesday, April 12th

Manhattan College

Bronx, NY

See the event flyer  [ ] and contact Vic Loiola at  to register. Lecture attendees will earn 1 PHD.

2017 Ash Dewatering Workshop at EUCI

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Handling coal ash management and storage procedures in order to keep facilities in compliance with current regulations, as well as adapting to future regulatory changes, is a hot topic in the Coal Combustion Residuals (CCR) community.   Moretrench is in the forefront in assisting power companies with closure challenges through the engineered design and installation of pre-drainage systems. These systems have proven to expedite excavation or capping of CCR materials and enhance the safety of the excavation or grading and capping processes.

The recent EUCI Coal Combustion Residuals Conference, held in Atlanta, GA, from March 30-31, showcased the issues facing the power industry and steps currently being taken.  A half-day pre-conference workshop led by Moretrench Senior Vice President Paul Schmall and Chief Dewatering Engineer Greg Landry discussed the behavior and responsiveness of ash to drainage methods, the wide range of techniques that can be used, associated water treatment methods, the geotechnical investigations necessary, geotechnical verification and monitoring, and new advances in the technologies.  Paul Schmall was also a member of the Closure Services Contracting Panel which engaged in a discussion of “best fit” contracting practices.

“It was an excellent show.  A recurring theme was the need for early dewatering.  This was driven home by Anita Perry with Southern Company Services who also spoke to the need for in-situ ash monitoring.  The concepts are sinking in!”     – Paul Schmall

Click here for more information on Moretrench’s CCR capabilities.