Working with geotechnical engineers at Testing Engineers and Consultants, I developed a series of drawings for the restoration of the Algonac seawall.  The United States Coast Guard hoped to repair a damaged 200-foot section of the seawall.  The city found that the seawall was failing because the adjacent St. Clair River bottom had been dredged too deeply. A 1997 U.S. Army Corps of Engineers dredging permit allowed the Coast Guard to dredge too deeply next to the seawall.  In exchange for a 20 year lease on the site, the Coast Guard agreed to pay for the repairs.  The new design required the addition of two, one foot wide, double channel steel wales to support the 200 meters of existing sheet piling.  Connected to the wales would be helical anchors, attached 70 feet back to a buried concrete slab.