REPORT DOCUMENTATION PAGE 



Form Approved 

 OMB No. 0704-0188 



Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering 

 and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of 

 information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, 

 Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503. 



1 . AGENCY USE ONLY (Leave blank) 



REPORT DATE 



March 1999 



3. REPORT TYPE AND DATES COVERED 



Final report 



4. TITLE AND SUBTITLE 



Inspections of Previously Monitored Coastal Structures 



6. AUTHOR(S) 



Robert R. Bottin, Jr., Larry R. Tolliver 



FUNDING NUMBERS 



WU 11M-7 



PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 



U.S. Army Engineer Waterways Experiment Station 

 3909 Halls Ferry Road, Vicksburg, MS 39180-6199 



8. PERFORMING ORGANIZATION 

 REPORT NUMBER 



Technical Report 

 CHL-99-3 



SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 



U.S. Army Corps of Engineers 

 Washington, DC 20314-1000 



10. SPONSORING/MONITORING 

 AGENCY REPORT NUMBER 



11. SUPPLEMENTARY NOTES 



Available from National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. 



12a. DISTRIBUTION/AVAILABILITY STATEMENT 



Approved for public release; distribution is unlimited. 



12b. DISTRIBUTION CODE 



1 3. ABSTRACT (Maximum 200 words) 



This report presents results of inspections of coastal sructures monitored previously under the Monitoring Com- 

 pleted Navigation Projects (MCNP) Program. Expedient, low-cost inspections consisting of walking inspections 

 and/or boat surveys were performed at 14 sites. Positions of breakwater and jetty armor units were compared with their 

 positions in previous aerial photography and photogrammetric surveys. Settlement of portions of the structures as well 

 as voids in their armor also were noted, and photographs of the structures were obtained. Summaries of the inspection 

 results as well as recommendations are presented in this report. The work was conducted under the "Periodic Inspec- 

 tions" work unit of the MCNP program. 



14. SUBJECT TERMS 



Armor units CORE-LOCs 



Breakwaters Dolosse 



Coastal structure inspections Jetties 



Tribars 



15. NUMBER OF PAGES 



60 



16. PRICE CODE 



17. SECURITY CLASSIFICATION 

 OF REPORT 



UNCLASSIFIED 



18. SECURITY CLASSIFICATION 

 OF THIS PAGE 



UNCLASSIFIED 



19. SECURITY CLASSIFICATION 

 OF ABSTRACT 



20. LIMITATION OF ABSTRACT 



NSN 7540-01-280-5500 



Standard Form 298 (Rev. 2-89) 



Prescribed by ANSI Std. Z39-18 

 298-102 



