Mystic Seaport Lift Dock

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, Connecticut
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

Location
Mystic, Connecticut

Client
Mystic Seaport Museum

Our Role
Prime
Project Type
Marine Design

Contract Period
2003-2008

Construction Cost
$4,000,000
Services
Site Inspection
Marine Design
Geotechnical Engineering
Construction Administration