Marine Projects

416 and 420 Kent Avenue

416 and 420 Kent Ave Rendering.jpg
Project Overview: 
416-420 Kent is comprised of 23-story towers, 6-story podiums, 1-level underground parking garages, residential units, commercial space, and amenity spaces on top of the podiums including swimming pools and outdoor basketball courts. The total constructed floor area is 800,000 square feet.
McLaren's Role: 
McLaren is providing full engineering design services for the structural, geotechnical, marine, and civil portions of the project. The 421a Tax Abatement deadlines created a need for a fast-track design schedule requiring a permit set of structural drawings to be submitted within a one (1) month timeline. Partial borings were expedited to facilitate a preliminary pile design required to submit a structural permit set. Internal coordination between the Structural, Marine, Civil, and Geotechnical Divisions at McLaren allowed the project to move at the fast pace required to meet the project deadlines.
Service: 
Structural / Foundation Engineering
Service: 
Civil / Geotechnical Engineering
Service: 
Marine Engineering
Service: 
SOE / DMO Drawings
Service: 
Stormwater Pollution Prevention Plan
Service: 
Permitting
Location: 
Williamsburg, Brooklyn, New York
Client: 
420 Kent Avenue LLC c/o Spitzer Enterprises
Project Type: 
Structural Engineering
Role: 
Prime
Contract Period: 
2014-2016
Construction Cost: 
$340 million

Ellis Island Seawall Stabilization and Rehabilitation

Ellis Island Dive Inspection.jpg
Project Overview: 
The historic ferry building and connecting corridors were severely undermined by the seawall’s poor condition. The preliminary inspection of the seawall revealed varying degrees of deterioration. Mortar joints had eroded; large granite blocks were dislodged and fallen into the harbor. Furthermore, wooden relieving platforms and wooden piles had decayed and were voraciously attacked by marine bores, resulting in accelerated deterioration of the seawall itself and causing serious erosion from beneath and behind. Sinkholes had developed behind the seawall on all sides of the ferry slip.
McLaren's Role: 
McLaren provided underwater inspection of the seawall, as well as providing an inspection of the seawall’s face.Following the inspection, McLaren was tasked to prepare Class C, Class B and Class A Construction Cost Estimates. Our effort also included preparation of construction cost estimates for schematic and preferred alternatives as well as the final design. McLaren was also responsible for providing construction inspection services relative to the marine components of the seawall repair.
Service: 
Underwater Inspection
Service: 
Cost Estimates
Service: 
Construction Inspection
Location: 
Upper New York Bay, Jersey City, New Jersey
Client: 
National Park Service
Project Type: 
Marine Inspection
Role: 
Subconsultant
Contract Period: 
2009-2012
Construction Cost: 
N/A

National Aquarium In Baltimore Blacktip Reef Exhibit

National Aquarium In Baltimore NAIB - Wings on the Water Renovation - Black Tip Reef.JPG
Project Overview: 
McLaren performed structural investigation, design, and construction phase services as part of the A/E team for the complete restoration and renovation of a 260,000 gallon salt water tank. The crown jewel of the National Aquarium’s Pier 3 Building, the “Blacktip Reef Exhibit” includes a large curved acrylic viewing panel, cantilevered viewing gallery with glass handrails, and was constructed without disturbing everyday operations of the aquarium.
McLaren's Role: 
Challenged with performing the investigation and design of the renovated space while the exhibit area was full of water, McLaren utilized in house dive teams to gather information and extract core samples of the existing concrete. Using 3-D finite element structural modeling and historical investigations and analysis, McLaren prepared bid and construction documents for the renovations that were required to transform the exhibit into the new “Blacktip Reef Exhibit”. Significant renovations included the removal of an existing column and slab system to permit the construction of a new cantilevered viewing gallery and removal of large parts of the original tank to accommodate the 27’ x 8’ tall x 3" thick curved acrylic viewing panel. Due to the open nature of the Pier 3 Building, McLaren worked closely with a scaffolding company to enable a temporary “lid” to be installed over the exhibit to minimize noise, dust, and visibility to the rest of the building during the construction phase.
Service: 
Structural Engineering
Service: 
Underwater Investigation
Service: 
Construction Documents
Service: 
Construction Administration Phase Services
Location: 
Baltimore, Maryland
Client: 
National Aquarium in Baltimore
Project Type: 
Structural Engineering
Role: 
Subconsultant
Contract Period: 
2010-2013
Construction Cost: 
$14,000,000

The Village of Dobbs Ferry Waterfront Park

Dobbs Ferry.JPG
Project Overview: 
The Village was not only interested in stabilizing its shoreline, but developing the waterfront areas for recreational and/or practical use. The design included shore line stabilization; the potential of a boat berthing facilities, recreational alternatives, fishing pier; and the feasibility to install floating boat docks at the Village's Hudson River Waterfront Park.
McLaren's Role: 
McLaren provided marine engineering and surveying services for this award winning project, to evaluate and design the most cost-effective means, to develop and rehabilitate the shoreline. Services included: evaluation of the exiting stone rip-rap revetment, shore line embankment, and sheet piling conditions; a hydrographic survey; evaluation of alternatives for use of waterfront property; a cost analysis; construction documents; permitting assistance; construction administrative services; bid phase support; construction consulting services; public hearing attendance; and NYSDOS project reporting services. A key element to the success of this project was resolving coastal design issues associated with significant environmental forces, as well as federal and state coastal permitting processes. McLaren worked to resolve the physical and visual impacts on the surrounding environment.
Service: 
Marine Engineering and Design
Service: 
Hydrographic Survey
Service: 
Permitting
Location: 
Dobbs Ferry, New York
Client: 
The Village of Dobbs Ferry
Project Type: 
Marine Engineering
Role: 
Prime
Contract Period: 
2008-2014
Construction Cost: 
$2,000,000 est.

Grand Marais Harbor Restoration

Grand Marais Complete.jpg
Project Overview: 
The function of the Grand Marais Harbor of Refuge is to provide shelter for vessels that are caught in unexpected storms. A breakwater was constructed in the late 1800s as part of a federally funded project by the USACE. By the 1950s the pile dike breakwater had deteriorated and experienced substantial infilling with sandy sediment, reducing depths severely. Breakwater reconstruction consisted of a 1,550 linear foot (crest length) rubblemound benched breakwater constructed of quarried rock consisting of core stone, a layer of filter stone, and with a layer of armor stone covering the structure.
McLaren's Role: 
McLaren performed marine engineering and design services for the construction of a rubble-mound breakwater. The project involved an in-depth investigation of the harbors’ existing breakwater and review of available environmental reports and surveys to determine the characteristics of the harbor and the intended design. McLaren worked the Michigan Department of Environmental Quality (MDEQ) to ensure the efficient review and approval of permit documents during the permitting process. One of the main concerns McLaren had to address was the impact on the piping plover, a federally listed endangered species of bird. McLaren worked with the MDEQ and U.S. Fish & Wildlife Service to monitor the birds and gain approvals for the project. With the efforts of the community, the plover had their most successful breeding season on record. McLaren also developed final construction drawings in accordance with the USACE and reviewed the engineering behind all previously prepared design drawings. In addition to design work in the harbor, McLaren performed construction administration services including bid phase services, shop and installation drawing review, and construction observations for quality control. Schedule adherence for this project was imperative. The harbor was rapidly filling in with sand and work could only be performed in the summer, since ice floes prevent work in the winter.
Service: 
Marine Engineering and Design
Service: 
Permitting
Service: 
Construction Administration
Service: 
Construction Inspection
Location: 
Grand Marais, Michigan
Client: 
Burt Township, Alger County
Project Type: 
Marine Engineering
Role: 
Prime
Contract Period: 
2011-2012
Construction Cost: 
$4,800,000