Case Histories of Corps Breakwater and Jetty Structures. Report 3. North Central Division

Abstract : This report is third in a series of case histories of US Army Corps of Engineers (Corps) breakwater and jetty structures at nine Corps divisions. Case histories are presented for 107 projects which include jetty structures located within US Army Engineer Division, North Central (NCD), which encompasses the Great Lakes region. Presently there are approximately 481,570 lin ft of breakwater and jetty structures managed by NCD. These structures consist of timber crib, stone, sheet-pile, and concrete construction. Many have undergone repair and/or modification during their lifetime. A variety of repair methods have been utilized, including replacement of wooden structures, addition of stone, use of concrete and concrete caps, and placement of concrete armor units.