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

Location
Grand Marais, Michigan

Client
Burt Township, Alger County

Our Role
Prime
Project Type
Marine Engineering

Contract Period
2011-2012

Construction Cost
$4,800,000
Services
Marine Engineering and Design
Permitting
Construction Administration
Construction Inspection