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Marine Projects

NYCDOB On-Call Contract (Waterview Court)

August 12, 2008 - 1:29pm — mmase
NYCDOB Investigation at Waterview Court
Project Overview: 
McLaren Engineering Group was retained by the City of New York Department of Buildings to provide “On-Call” Building Condition Assessment Services for various building design and construction types, including historic structures. Specific services include structural condition assessments, coordination of architectural and MEP assessments, design of structural and coordination of all repair recommendations, and construction cost estimating and construction bid support services.
McLaren's Role: 
One of the most significant projects under this contract to date was an emergency engineering response to stabilize an earthen slope where a retaining wall collapsed at 41-57 Waterview Court in Staten Island, New York (pictured). With the retaining wall giving out, the buildings were sliding down the slope, toward the waterfront. In a diverse and comprehensive effort, McLaren employed its structural, marine, civil, geotechnical and survey engineers to help develop the most effective solution. Survey and vibration monitoring were executed as part of the engineering services needed for the stabilization.
Service: 
Condition Assessment
Service: 
Construction Cost Estimating
Service: 
Construction Bid Support
Location: 
New York, NY
Client: 
NYCDOB
Project Type: 
Structural Condition Assessment
Role: 
Prime
Contract Period: 
2005-2007
Construction Cost: 
N/A
Image: 
35a - NYCDOB On-Call.jpg
Image: 
35b - NYCDOB On-Call.jpg

Mystic Seaport Lift Dock

August 12, 2008 - 1:12pm — mmase
Mystic Seaport Lift Dock
Project Overview: 
The Mystic Seaport Museum owns and operates a lift dock to facilitate in the rehabilitation of its two 350 ton sea-faring vessels. The existing lift dock was built in 1970 and a 2003 structural inspection revealed the steel to be significantly deteriorated and the structural capacity to be far from adequate to hoist either vessel. McLaren was thus enlisted to provide marine, structural, and geotechnical engineering services to build a new facility to meet the needs of the seaport. The Pile Drivers Contractors Association (PDCA) recently voted the pile design for the new lift dock as its “Project of the Year” for projects under $1 million.
McLaren's Role: 
McLaren oversaw the demolition of the existing structure and performed dredging before beginning construction of the new lift dock. Sediment beneath the lift dock was found to be contaminated and therefore McLaren had to bury them in an on-site Confined Aquatic Disposal (CAD) Cell and use the cleanest materials from the site as a cap to cover the contaminated ones. McLaren engineers designed the dock lifting capacity to be approximately 400 tons and dredged the facility to approximately a 26-foot depth in stages to meet the requirements of permitting agencies.
Service: 
Site Inspection
Service: 
Marine Design
Service: 
Geotechnical Engineering
Service: 
Construction Administration
Location: 
Mystic, CT
Client: 
Mystic Seaport Museum
Project Type: 
Marine Design
Role: 
Prime
Contract Period: 
2003-2008
Construction Cost: 
4,000,000
Image: 
50a - Mystic Seaport Lift Dock (Aerial).jpg

Maxwell House Site Development

August 12, 2008 - 12:44pm — mmase
Maxwell House Site Development
Project Overview: 
McLaren is working with P.T. Maxwell, LLC on converting the former Maxwell House coffee industrial site to a planned residential mixed-use development along the Hudson River. This waterfront community is designed to preserve views and maximize open space in accordance with NJDEP’s Hudson River Waterfront Walkway (HRWW) guidelines. The main project challenges include inspection and assessment of existing structures, stabilization of the shoreline, repair of dilapidated piers, permitting for emergency fire access and dock, maintaining view corridor, and providing access to the river.
McLaren's Role: 
McLaren is providing site/civil, infrastructure, and marine engineering services. This includes construction documents of demolition, and reconstruction of the existing pier and platforms, utilities, and roadway design. McLaren has prepared the permits for the New Jersey Department of Environmental Protection Waterfront Development, Boat Launch and Treatment Works Authority, the North Hudson Sewer Authority, City Planning Board, and Soil Erosion Approval.
Service: 
Site/Civil Engineering
Service: 
Marine Engineering
Service: 
Permitting
Service: 
Design
Service: 
Construction Administration
Location: 
Hoboken, NJ
Client: 
P.T. Maxwell, LLC
Project Type: 
Site Development
Role: 
Prime
Contract Period: 
1999-2009
Construction Cost: 
N/A
Image: 
19a - Maxwell House Sketch (1).jpg
Image: 
19b - Maxwell House Sketch (2).jpg

Marine Borer Investigation at FDR Drive

August 12, 2008 - 12:40pm — mmase
Marine Borer Investigation at FDR Drive
Project Overview: 
McLaren completed the underwater inspection of approximately 12 miles of relieving platform along the FDR and Harlem River Drives, including underwater condition survey, below water inspection and assessment of 63,400 piles, marine borer identification, and destructive testing and evaluation. This work spanned nearly the entire length of the East side of Manhattan from the South Street Seaport to 181st Street.
McLaren's Role: 
McLaren inspected a multitude of waterfront structures of different ages and construction types, including low-level relieving platforms (timber and concrete), high-level platforms (timber, steel, and concrete), steel sheet pile bulkheads, timber sheet pile bulkheads, concrete gravity seawalls, timber crib walls, and riprap embankments The condition survey was comprehensive, and was broken down into "location" and "segments." Destructive testing Level II timber cores were retrieved on hundreds of timber piles, and submitted by McLaren to testing labs to assess marine borer activity and creosote retention. The results of the inspection and studies are presented in detailed reports.
Service: 
Underwater Investigation
Service: 
Marine Borer Evaluation
Location: 
Manhattan, NY
Client: 
NYCDOT
Project Type: 
Marine Borer Investigation
Role: 
Prime
Contract Period: 
2000-2002
Construction Cost: 
1,300,000
Image: 
49a - FDR Drive Marine Borers (2).jpg
Image: 
49c - Timber Core Retrieval.jpg
Image: 
49b - Marine Borer Measurement.jpg

Hoboken Ferry Terminal

August 12, 2008 - 12:17pm — mmase
Historic Hoboken Ferry Terminal
Project Overview: 
Under a marine services contract to the HSC Management Corporation, McLaren provided professional services for the design of a pile anchorage system for a replacement marina dock layout. McLaren also assisted with the development of a floating wave attenuator layout arrangement and anchorage design to protect the marina. Services included preparation of permit documents, detailed inspections of existing structures, and surveying.
McLaren's Role: 
McLaren was responsible for permitting, detailed inspection services, and design of the anchorage system.
Service: 
Marine Engineering
Service: 
Anchorage Design Services
Service: 
Permit Preparation
Location: 
Hoboken, New Jersey
Client: 
HSC Management Corporation
Project Type: 
Marine Engineering
Role: 
Sub-consultant
Contract Period: 
2002
Construction Cost: 
N/A
Image: 
71a - Hoboken Ferry Terminal.jpg
Image: 
71b - Hoboken Ferry Terminal.jpg