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Seaway
Port Authority of Duluth
Duluth,MN |
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 Project
Description: Krech Ojard was hired by the Duluth Seaway Port Authority to analyze the main area used for shipping in the Duluth port. Work involved four heavily trafficked berthing areas in the Duluth-Superior Harbor with over two miles of docking facilities. KO performed surveys over multiple days to accommodate ship traffic and utilized Krech Ojard engineer-divers to determine facility sheet pile integrity and toe depth. KO prepared the baseline such that sedimentation transport analyses may be completed annually.
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Issues and Needs:
 KO performed surveys over multiple days to accommodate ship traffic and utilized Krech Ojard engineer-divers to determine facility sheet pile integrity and toe depth.
Services
provided:
• Reviewed sketches of the area and previous surveys
• Completed hydrographic surveys of 1,735,000 sf area
• Corrected surveys for lake levels and adjusted to the IGLD 1985 Low Water Datum (LWD)
• Created a detailed contour map of all areas and tied in key dock features for reference
• Identified areas of concern
• KO coordinated a post survey meeting with the client to discuss survey results and concern areas
• Utilized side-scan sonar to identify troublesome debris in docking area
Project Summary:
Krech Ojard was hired by the Duluth Seaway Port Authority to analyze the main area used for shipping in the Duluth port.
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