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Areas of Expertise > Shoreline Services
Central Dock Seawall Project, St. Joseph/Benton Harbor, MI
This commercial dock located at the intersection of the St. Joseph River and Paw Paw rivers is highly used by shipping barges carrying sand, salt and cement. |
Wightman & Associates, Inc designed the sheet pile seawall extension along the Paw Paw River side of the dock to replace the failing timber seawall. The project began were the earlier replacement of the St. Joseph River side of the dock had been stopped. Wightman’s scope of work also included preparing the MDEQ and Army Corp of Engineers Permit applications; bid documents and contract documents.
Due to unexpected circumstances the owners decided to construct less than the original planned amount of seawall at this time so a “as constructed” survey & drawing was completed to document exactly what was installed. |
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Pier 33 Marina Dredging and Marina Improvement Permits, St. Joseph, MI
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Numerous projects over the years have been completed for Pier 33 including preparing applications for the MDEQ & Army Corp of Engineers Permits for dredging Morrison Channel in the St. Joseph River in front of the Marina, dock replacement permits, material sampling and testing, and responding to MDEQ inquiries.
Services Provided:
Surveying - Design Engineering - Construction Engineering - Permitting - Inspection and Material testing |
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Seawall Study and Repair Projects, New Buffalo, MI
Rain caused massive runoff and damaged the City’s Transit Marina seawall. |
An engineering study was completed following a record rainfall (10-12 inches) in mid September 2008. Two large sinkholes developed on the upstream end of the marina required an engineering study. The study concluded that scour during the high velocity flows had undercut the seawalls in several areas and hydraulic pressure build up behind the seawall caused the soil to flow under the wall in the two sink hole areas. Proposed solutions were a new deeper seawall in front of the existing wall and added surface drainage.
Services Provided:
Surveying - Design Engineering - Construction Engineering - Permitting - Inspection and Material testing |
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Harbor Landing Marina Dredging Permit, New Buffalo, MI
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WAI prepared the MDEQ and Army Corp of Engineers permit applications for dredging the marina on the Galien River in New Buffalo, Michigan.
Services Provided:
Surveying - Design Engineering - Construction Engineering - Permitting - Inspection and Material testing |
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MDEQ Permits for individual residential projects
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Wightman & Associates, Inc has prepared numerous MDEQ and Army Corp of Engineers permit applications for individual residential client’s projects along Lake Michigan and connecting rivers. The projects have involved numerous tasks and challenges including dredging, revetment walls, boat slips, boat launches, docks, and residences that may impact streams, lakes, floodplains, wetlands, critical dunes and high risk erosion areas. |
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Incline Elevators
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The state of Michigan has begun to strictly enforce the design requirements for incline elevators frequently used on high bluffs to reach beach areas. In the past, there were problems with incline elevators being approved based on prototype elevator equipment plans and no documentation.
WAI prepares construction documents for inclined elevators including a geotechnical report. Boundary and topographic surveys are used to design the elevator foundation. Equipment plans are integrated with site plan to provide specific lot information such as landing decks. Plans now have to be submitted to the state Plan Review Division and the /elevator Division. |
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Work In Progress
Water Improvements, Bridgman, MI
USDA Rural Development funded water project including water main replacement and looping water intake replacement in Lake Michigan, hydrant replacement, security upgrades and water plan office addition.
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