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City of Detroit Building Authority
Detroit,MI

Project Description: The Grey Haven Marina, owned by the City of Detroit, had been used for private boats and the city wanted the facility rehabilitated for expanded use. The marina features a shallow berthing area with riprap perimeter. Krech Ojard & Associates, P.A. conducted a hydrographic survey of the marina for rehab purposes.

 

Special Issues and Needs:
There was only minimal area information available prior to conducting the survey. The project required expedited survey scheduling and tight final product turn-around schedules.

Services provided:
• Reviewed sketches of the area.
• Coordinated with contractor, client and local engineer.
• Completed pre-dredge and post-dredge surveys.
• Performed an analysis of compacted material removed.
• Performed side-scan sonar sweep of the area to locate obstructions.
• Prepared a comprehensive contour map of the marina.

Project Summary:

The project was completed on schedule and to budget in August of 2002.

 
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Olmsted Dam
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Ontario Railroad Announcement
Extreme Home
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