A Seawall for Sea Mammals

by William Weaver, (M.ASCE), Vice Pres., Water Resources Div.; STS Consultants Ltd., Consulting Engineers, 111 Pfingsten Rd., Northbrook, IL 60062,
Ted Bushell, Principal Engineer; STS Consultants Ltd., Consulting Engineers, 111 Pfingsten Rd., Northbrook, IL 60062,


Serial Information: Civil Engineering—ASCE, 1989, Vol. 59, Issue 1, Pg. 66-68


Document Type: Feature article

Abstract: With glass walls only 75 ft from Lake Michigan, an aquarium addition demanded solid seawall protection. Yes, in a strange twist of logic, the first step in creating a whale habitat for Chicago's Shedd Aquarium was to fill in two acres of Lake Michigan. Lake Michigan will be visible through three levels of windows. Thus, as patrons look up from the man-made pools to a panoramic view of the lake, water will indeed be the dominant environment. This rigid set of aesthetic goals, when combined with the dynamics of a Lake Michigan only 75 ft away, put engineers up against the seawall. The 1,400 ft transition system selected consists of an underwater stone revetment, a 7 ft high steel sheeting wall that rises several feet above normal lake level, an 18 ft wide concrete apron and a 10 ft high concrete seawall.

Subject Headings: Aquatic habitats | Sea walls | Lakes | Marine animals

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