IlnrlassifipH 



SECURITY CLASSIFICATION OF THIS PAGE 



REPORT DOCUMENTATION PAGE 



form Approved 

 0MB No 0704 0188 

 Enp Date Jun 30. r986 



la REPORT SECURITY CLASSIFICATION 



Unclassified 



2a SECURITY CLASSIFICATION AUTHORITY 



2b DECLASSIFICATION /DOWNGRADING SCHEDULE 



i PERFORMING ORGANIZATION REPORT NUM8ER(S) 

 Technical Report REMR-CO-3 



lb RESTRICTIVE MARKINGS 



3 DISTRIBUTION /AVAILABILITY OF REPORT 



Approved for public release; distribution 

 unlimited 



5 MONITORING ORGANIZATION REPORT NUMBER(S) 



6a NAME OF PERFORMING ORGANIZATION 

 USAEWES, Coastal Engineering 

 Research Center 



6b OFFICE SYMBOL 

 (If applicable) 



7a NAME OF MONITORING ORGANIZATION 



6< ADDRESS (City, State. *nd ZIP Code) 



PO Box 631 



Vicksburg, 'MS 39180-0631 



7b ADDRESS (City, State, and ZIP Code) 



8a. NAME OF FUNDING /SPONSORING 

 ORGANIZATION 



US Army Corps of Engineers 



8b OFFICE SYMBOL 

 (If applicable) 



9 PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER 



10 SOURCE OF FUNDING NUMBERS See reverse. 



8c. ADDRESS (Oty, State, and Z/P CocteJ 



Washington, DC 2031A-1OO0 



PROGRAM PROJECT TASK 



ELEMENT NO. NO 



11 TITLE (Include Security Claaification) 

 Case Histories of Corps Breakwater and Jetty Structures; Report 3: 

 Division 



North Central 



12 PERSONAL AUTHOR(S) 



Bottin, Robert R, Jr. 



t3a TYPE OF REPORT 



Report 3 of a series 



13b TIME COVERED 



FROM Apr 85 TO Jan 87 



14 DATE OF REPORT {Year, Month. Day) 

 June 1988 



15 PAGE COUNT 

 437 



16 SUPPLEMENTARY NOTATION 



Available from National Technical Information Service, 5285 Port Royal Road, Springfield, 

 VA 22161. 



COSATI COOES 



18 SUBJECT TERMS (Continue on reverse if neceisary and identify by block number) 

 Breakwater REMR (Repair, Evaluation, 



Concrete armor units Maintenance, and Rehabilitation) 



Jetty Rubble-Mound structures 



19 ABSTRACT (Continue on reverse if rtecessary and identify by block number) 



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 pre- 

 sented 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 lln 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 re- 

 pair methods have been utilized. Including replacement of wooden structures, addition of 

 stone, use of concrete and concrete caps, and placement of concrete armor units. 



20 DISTRIBUTION /AVAILABILITY OF ABSTRACT 



[2 UNCLASSIFIED/UNLIMITED D SAME AS RPT □ DTIC USERS 



21 ABSTRACT SECURITY CLASSIFICATION 



Unclassified 



22a NAME OF RESPONSIBLE INDIVIDUAL 



22b TELEPHONE (/nc/ude Area Code) 22c OFFICE SYMBOL 



00 FORM 1473, 84 MAR 



83 APR edition may be used until exhausted 

 All other editions are obsolete 



SECURITY CLASSIFICATION QF THIS PAGE 



Unclassified 



