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

Location
Upper New York Bay, Jersey City, New Jersey

Client
National Park Service

Our Role
Subconsultant
Project Type
Marine Inspection

Contract Period
2009-2012

Construction Cost
N/A
Services
Underwater Inspection
Cost Estimates
Construction Inspection