Contractor Support

AMERICAN DREAM MEADOWLANDS
EAST RUTHERFORD, NEW JERSEY

American Dream Meadowlands is a retail and entertainment complex under construction in the Meadowlands Sports Complex in East Rutherford, New Jersey. 

The American Dream Meadowlands project will contain over 500 stores and will also include both North America’s largest indoor amusement park and largest indoor water park.

JZN Engineering provided contractor support to conduct engineering analysis to evaluate the required geotechnical and structural parameters for the micro-pile to achieve the required axial and tension resistance capacity. JZN worked closely with the foundations contractor to provide a cost-effective solution taking into account the soil conditions at the site. JZN also provided a load test analysis. Additionally, JZN provided consulting services to the project team to resolve issues regarding existing pile and foundation elements located within the footprint of proposed new foundation elements.

PROJECT SERVICES

¨ Contractor Support

¨ Deep Foundation Design

¨ Tie down Design

¨ Value Engineering

HOBOKEN GAS WORKS REMEDIATION
HOBOKEN, NEW JERSEY

The project is located at the intersection of Clinton Street and 12th Street in the City of Hoboken, Hudson County, New Jersey.

The project was to design and construct a temporary frozen soil shoring wall for the approximately 60,000 square foot Hoboken Gas Works remediation site.

JZN Engineering provided contractor support for the analysis of a frozen soil wall to allow for the excavation of a contaminated site undergoing environmental remediation. JZN coordinated with other contractors to address environmental concerns and establish an excavation sequence that minimized the proliferation of contaminants.

The site is now the location of the Jordan residential building.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation and Dewatering Analysis

¨ Soil Freeze System Design and Utilization

¨ Construction Phase Quality Control

SPECTRA ENERGY INFRASTRUCTURE PIPELINE
BUCHANAN, NEW YORK

The Spectra Energy pipeline consisted of an interstate energy infrastructure project.

JZN Engineering provided value engineering for a portion of the pipeline requiring support of excavation in Buchanan, New York.

JZN Engineering conducted a geotechnical investigation and provided engineering services to assess the subsurface soil conditions and provide recommendations for Support of Excavation and earthwork specifications. JZN provided rock contour plans and profiles and provided rock removal quantity estimates for the contractor. Due to project requirements, shallow bedrock, and sensitive organic deposits, JZN worked closely with the contractor to provide a cost effective and feasible SOE system that would satisfy the stringent project requirements. The SOE system consisted of a sheetpile wall extending to top of bedrock with a multi stage and multi tier waler and brace system. Due to highly variable rock conditions, JZN provided real time analysis of the sheetpile wall to determine if changes and alterations were required to the design.

PROJECT SERVICES

¨ Subsurface Investigation

¨ Contractor Support

¨ Support of Excavation Design

THE XI BOROUGH OF
MANHATTAN, NEW YORK

The project is located at 76 11th Avenue in the Borough of Manhattan, City & State of New York.

The project is approximately 895,000 square feet and within the path of the Highline. The project consists of 25 and 34-story towers. The mixed-use development includes a 137-room luxury hotel, 247 private condominiums, and 90,000 square feet of retail space. The proposed development includes the construction of a full basement and the support of the existing Highline structure during the project excavation process.

JZN Engineering provided contractor support for design of drilled caisson details, load test plans, and SOE soldier pile connection details. Drilled caissons, including specialty connections and details, were coordinated between JZN Engineering and the steel manufacturers. Load test frames were designed with ultra high loads of over 1,000 tons. JZN also provided design and on-site supervision of specialty load test monitoring equipment including inclinometers during lateral load tests and strain gauges during uplift load tests.

PROJECT SERVICES

¨ Contractor Support

¨ Load Test Frame Design for Axial, Lateral and Uplift Forces

¨ Geotechnical Load Testing Instrumentation

¨ Value Engineering

99 HUDSON
CITY OF JERSEY CITY, NEW JERSEY

The project is located at 99 Hudson Street in the City of Jersey City, New Jersey.

The project is a 79-story condominium building that will feature 781 units, 15,000 square feet of retail space, and 14,000 square feet of public space. The proposed development includes the construction of a full basement.

JZN Engineering provided contractor support for design of the main building support of excavation. Due to shallow groundwater and multiple high rise buildings located on adjacent lots, JZN was required to provide a cost effective support of excavation solution that would not lower the groundwater table on adjacent lots. JZN designed a drilled soldier pile and lagging system that was supplemented with an offsite temporary sheetpile wall. JZN also designed the dewatering system to be used and provided finite element modeling to show the effects of the ground water over varying distances.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

¨ Dewatering Design and Analysis

¨ Value Engineering

WATERFRONT CORPORATE CENTER III
HOBOKEN, NEW JERSEY

The project is located at Sinatra Drive & 2nd Street in the City of Hoboken, Hudson County, New Jersey.

JZN conducted the analysis and redesign of an existing sheet pile wall shoring system that runs adjacent to Sinatra Drive. The purpose of the new design was to allow the contractor the ability to dewater and then excavate the site for the construction of the mixed-use Waterfront Corporate Center III.

JZN Engineering provided contractor support for the analysis and design of sheet pile wall, house head tie pack, and anchor tie back shoring system.

PROJECT SERVICES

¨ Contractor Support

¨ Load Test Frame Design

¨ On-Site Specialty Load Test Monitoring

¨ Tie Backs Value Engineering to Hilti Bolts Anchored to Piers

¨ Foundation Value Engineering

SPEEDWAY GASOLINE SERVICE STATION
CITY OF JERSEY CITY, NEW JERSEY

The project is located at 685 State Highway 440 in the City of Jersey City, New Jersey.

The project is a Speedway Gasoline Service Station building with canopy columns.

JZN Engineering provided contractor support  for the review and installation of the helical piles installed on site. In addition, JZN provided construction phase quality control for the contractor by instituting on-site monitoring of the helical piles during installation to ensure all foundation elements are adequately installed.

 

PROJECT SERVICES

¨ Contractor Support

¨ Construction Phase Quality Control

470-490 BROAD STREET DEVELOPMENT
NEWARK, NEW JERSEY

The project is located at the 470-490 Broad Street in the City of Newark, Essex County, New Jersey. The development included the construction of a 10-story mixed use structure and an eight-story parking lot.

JZN Engineering provided contractor support for design of the main building support of excavation (SOE). The support of excavation incorporated designing a sheet pile wall system that considered multiple exposed depths across the site to provide a practical and economical solution for the contractor.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design and Analysis

¨ Value Engineering

HACKENSACK UMC HOSPITAL
NORTH BERGEN, NEW JERSEY

The project is located at 7600 River Road in the Township of North Bergen, Hudson County, New Jersey.

The project is a Value Engineering assessment of a proposed deep foundation design and the subsequent analysis and redesign of the deep foundation.

JZN Engineering provided contractor support to conduct engineering analysis to evaluate the required geotechnical and structural parameters for the micro-pile to achieve the required axial resistance capacity. JZN worked closely with the foundations contractor to provide a cost-effective solution taking into account the soil conditions at the site. JZN also provided load test analysis to ensure the adequacy of the economically redesigned micro-pile.

PROJECT SERVICES

¨ Contractor Support

¨ Deep Foundation Design

¨ Load Test Analysis

¨ Value Engineering

TRUMP BAY STREET
CITY OF JERSEY CITY, NEW JERSEY

The project is located at the 65 Bay Street in the City of Jersey City, Hudson County, New Jersey.

The project is a Value Engineering assessment of proposed deep foundation parameters and the subsequent analysis and design of the deep foundation.

JZN Engineering provided contractor support to conduct engineering analysis to evaluate the required geotechnical and structural parameters for the drilled cassions to achieve the required axial, tensile, and lateral resistance capacity. JZN worked closely with the foundations contractor to provide a cost-effective solution taking into account the soil conditions at the site.

PROJECT SERVICES

¨ Contractor Support

¨ Deep Foundation Design

¨ Value Engineering

170 ERIE STREET
CITY OF JERSEY CITY, NEW JERSEY

The project is located at 170 Erie Street in the City of Jersey City, New Jersey. The proposed development includes the construction of a nine-story mixed-use building that will feature a triple-stack parking system retail space, office space, and 59 residential units.

JZN Engineering provided contractor support for design of limited support of excavation sets. The support of excavation provided was limited to that of the existing public light pole, traffic lights, utility poles around the site, and a portion of the sidewalk. In total, JZN provided designs for three partial support of excavation systems to allow the safe excavation and construction of the proposed building foundations. The support of excavations were designed to retain excavation depths ranging between approximately 10 feet and 14 feet. The support of excavation designs featured a combination of soil slopes and braced soldier pile with lagging wall systems. The bracing system consisted of walers, rakers and deadman for support. Another support of excavation system consisted of tension L-brackets connected to the existing pole and a reinforced concrete deadman for the support of the existing pole.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

184 MORGAN STREET
CITY OF JERSEY CITY, NEW JERSEY

The project is located at 184 Morgan Street in the City of Jersey City, New Jersey. The proposed development includes the construction of a 41-story residential building that will include multiple residential units, parking spaces, amenities, and a theater.

JZN Engineering provided contractor support for the design of a partial temporary support of excavation (SOE). The support of excavation provided was limited to that of the proposed building’s core elevator pit. JZN provided designs for the temporary system to allow for safe excavation to a depth of approximately 10 feet in order to construct the proposed elevator pile caps. The SOE design consisted of a steel sheet pile wall system.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

26 COTTAGE STREET
CITY OF JERSEY CITY, NEW JERSEY

The project is located at 26 Cottage Street in the City of Jersey City, New Jersey. The proposed development includes the construction of a 20-story residential building that will include a cellar level, retail spaces, office spaces, and multiple residential units. The proposed development will also include a new pedestrian plaza at street level.

In addition to conducting a subsurface investigation, construction quality control and special inspection services, as well as vibration monitoring, during pile drilling activities, JZN provided contractor support for a support of excavation system (SOE) to allow for the safe construction of the elevator pit adjacent to a neighboring building. The SOE allowed for safe excavation to a depth of approximately 12 feet. The SOE design featured a secant pile wall system to permit watertight excavation so as to avoid the undermining of the neighboring foundation.

PROJECT SERVICES

¨ Subsurface Investigation

¨ Existing Neighboring Foundation Investigation

¨ Deep Foundation Design Recommendations

¨ Construction Quality Control/Special Investigation

¨ Vibration Monitoring

¨ Contractor Support

¨ Support of Excavation Design

NORTH BERGEN COMMUNITY CENTER & LIBRARY
NORTH BERGEN, NEW JERSEY

The project is located at 1231 John F. Kennedy Boulevard in the Township of North Bergen, New Jersey. The proposed development includes the construction of a three-story multi-use building that will include a community center, library, computer lab, and a basement level.

JZN Engineering provided contractor support for the design of a limited support of excavation (SOE) system to allow for the safe construction of the proposed foundations. The support of excavation provided by JZN Engineering allowed for safe excavation to a depth of up to 16 feet. The design featured a combination of soil slopes and a soldier pile and lagging wall system. Some of the wall systems were installed via driven method while other were installed via drilled method. The drilled piles included the construction of rock sockets due to relatively shallow rock conditions within some portions of the proposed development.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

MODERA NEW ROCHELLE
CITY OF NEW ROCHELLE, NEW YORK

The project is located at 24 Maple Avenue in the City of New Rochelle, New York. The proposed development includes the construction of an eight-story residential building with two levels of below grade parking.

JZN Engineering provided contractor support for the support of excavation system (SOE) to allow for the construction of the below grade levels. JZN provided design for the support of excavation system to allow for safe excavation and construction of the proposed building foundations. The proposed SOE system was designed to retain excavation depths ranging from approximately 11 feet to 20 feet. The design featured an SOE system consisting of a combination of soil slopes and drilled steel pipe piles and lagging wall system.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

THE DUET
CITY OF WHITE PLAINS, NEW YORK

The project is located at 97-114 Hale Avenue in the City of White Plains, New York. The proposed development includes the construction of two separate residential buildings split by Hale Avenue. The proposed east building is a seven-story building, while the proposed west building is an eight-story building. Each of the buildings includes two below grade parking levels.

JZN Engineering provided contractor support for the support of excavation system (SOE) to allow for the construction of the below grade levels. JZN provided design for the support of excavation system to allow for safe excavation to depths ranging from approximately 11 feet to 23 feet. The designs featured a combination of soil slopes and drilled pipe piles and lagging wall system.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

QUEENS 7 GARAGE RENOVATION NYC DEPARTMENT OF SANITATION BOROUGH OF QUEENS, NEW YORK

The project is located at 120-15 31st Avenue in the Borough of Queens, City & State of New York. The proposed construction includes interior renovations of the existing DSNY garage, partial replacement of the buildings underslab drainage system, among other rehabilitation work.

JZN Engineering provided contractor support to conduct engineering analysis to evaluate the required geotechnical and structural parameters for a micro-pile design to achieve the required axial resistance capacity. JZN provided a pile design in support of the proposed oil separator pit. The proposed piles consisted of micropile.

Additionally, JZN provided designs for a limited support of excavation (SOE) system. The SOE provided was limited to that of the seven pits contained within the site, and were designed to allow the safe excavation to depths of up to 16 feet. The SOE design featured a steel micropile and lagging wall system braced with walers and braces.

PROJECT SERVICES

¨ Contractor Support

¨ Deep Foundation Design

¨ Support of Excavation Design

THE SMYTH
CITY OF STAMFORD, CONNECTICUT

The project included the demolition of the existing building and the construction of a 17-story building to be located at 885 Washington Boulevard, in the City of Stamford, Connecticut. The development includes a three-story parking garage structure with the lowest level bellow ground, multiple residential units from the third floor up, and amenities on the 17th floor.

JZN conducted the review of a third party preliminary geotechnical investigation and provided supplemental geotechnical investigation services to confirm previous findings and obtain information on subsurface soil and groundwater conditions. JZN provided foundation design recommendations for shallow foundations.

JZN prepared a support of excavation (SOE) design to allow the construction of the bellow grade portion of the parking garage structure. The SOE system consisted of drilled soldier piles with lagging. Our office provided support of excavation, subgrade inspection, and vibration monitoring services during construction activities.

Prior to the commencement of demolition and construction activities, JZN provided pre-construction conditions surveys of the neighboring buildings

PROJECT SERVICES

¨ Subsurface Investigation

¨ Foundation Design Recommendations

¨ Support of Excavation Design

¨ Construction Quality Control/Special Inspection

¨ Pre-Construction Conditions Survey

KIPP NYC DEVELOPMENT
BOROUGH OF THE BRONX, NEW YORK

The project is located at 1504 Macombs Road in the Borough of Bronx, City & State of New York.

The project is in support of the Proposed KIPP NYC Development. The project consists of a six story building with one below grade level..

JZN Engineering provided contractor support for the design of driven deep foundation piles, load test plans, and support of excavation design plans. JZN also provided design and on-site supervision of specialty load test monitoring equipment including inclinometers during lateral load tests and strain gauges during uplift load tests.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

¨ Load Test Plans and Documents

¨ Deep Foundation Design

PROPOSED MIXED-USE DEVELOPMENT BOROUGH OF THE BRONX, NEW YORK

The project is located at 2413 3rd Avenue in the Borough of Bronx, City & State of New York.

The project is in support of the Proposed Mixed-Use Development. The project consists of a 27-story residential building with one below grade level cellar.

JZN Engineering provided contractor support with support of excavation (SOE) design plans, which consisted of continuous flight auger (CFA) piles. JZN also conducted subsurface investigation to determine temporary soil bearing capacity for a temporary mobile crane.

In addition, JZN provided contractor support by providing remote ground water level monitoring services throughout the construction of the foundation and first floor slab.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

¨ Subsurface Investigation

¨ Water Level Monitoring Services

PROPOSED 11 GARDEN STREET DEVELOPMENT NEW ROCHELLE, NEW YORK

The project is located at 11 Garden Street in the City of New Rochelle, Westchester County, New York.

The project is in support of the Proposed 11 Garden Street Development. The project consists of the construction of a 19-story residential building with one full below grade cellar.

JZN Engineering provided contractor support for support of excavation (SOE) design plans. In addition, JZN also provided construction phase quality control services to allow for safe construction of the buildings foundation that was approximately 17 feet below the existing ground surface.

PROJECT SERVICES

¨ Contractor Support

¨ Support of Excavation Design

¨ Construction Phase Quality Control