o 



Woods Hole 



Oceanographic Institution 



Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE 



REPORT DOCUMENTATION PAGE 



Form Approved 

 OM8 No. 0704-01 88 



1a. REPORT SECURITY CLASSIFICATION 

 Unclassified 



1b RESTRICTIVE MARKINGS 



2a. SECURITY CLASSIFICATION AUTHORITY 



2b. DECLASSIFICATION /DOWNGRADING SCHEDULE 



3 DISTRIBUTION /AVAILABILITY OF REPORT 



Approved for public release; distribution 

 unlimited. 



4 PERFORMING ORGANIZATION REPORT NUMBER(S) 

 Technical Report CERC-90-7 



5. MONITORING ORGANIZATION REPORT NUMBER(S) 



6a. NAME OF PERFORMING ORGANIZATION 

 USAEWES, Coastal Engineering 

 Research Center 



6b. OFFICE SYMBOL 

 (if applicable) 

 CEWES-CW 



7a. NAME OF MONITORING ORGANIZATION 



6c ADDRESS (Crty, State, and ZIP Code) 



3909 Halls Ferry Road 

 Vicksburg, MS 39180-6199 



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



8a. NAME OF FUNDING /SPONSORING 

 ORGANIZATION 

 USAED, Los Angeles 



8b. OFFICE SYMBOL 

 (If applicable) 



9 PROCUREMENT INSTRUMENT IDENTIFICATION NUMBER 



8c ADDRESS (City, State, and ZIP Code) 



Los Angeles, CA 90053-2325 



10. SOURCE OF FUNDING NUMBERS 



1 1 TITLE (Include Security Classification) 

 King Harbor, Redondo Beach, California, Breakwater Stability Study; Hydraulic Model 



Investigation 



12. PERSONAL AUTHOR(S) 

 Smith, Ernest R. 



Dubose, Willie G.; Carver, Robert D. 



13a. TYPE OF REPORT 

 Final report 



13b. TIME COVERED 

 FROM Mar 89 TO Aug 



14. DATE OF REPORT (Year, Month, Day) 

 June 1990 



15. PAGE COUNT 



16. SUPPLEMENTARY NOTATION 



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

 Springfield, VA 22161. 



COSATI CODES 



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

 Breakwaters Redondo Beach, California 



Hydraulic models Stability 



Overtopping 



Wave transmission 



1 9. ABSTRACT (Continue on reverse if necessary and identify by block number) 



A hydraulic model investigation of proposed breakwater modifications to King Harbor, 

 Redondo Beach, California, was conducted at a geometrically undistorted scale of 1:35, model 

 to prototype. Five breakwater cross sections were each subjected to 15 design wave and 

 water-level conditions. Plans 1 through 3 consisted of variations of armor unit size on the 

 rehabilitation sections. A transition layer of small stones was included in Plans 4 and 5 

 to reduce wave transmission. Data collected were displaced stones, qualitative overtopping 

 observations, and wave transmission. Plan 5 gave the best combination of stability and 

 reduction of wave transmission. 



20. DISTRIBUTION /AVAILABILITY OF ABSTRACT 

 [3 UNCLASSIFIED/UNLIMITED □ SAME AS RPT 



D DTIC USERS 



21 ABSTRACT SECURITY CLASSIFICATION 

 Unclassified 



22a. NAME OF RESPONSIBLE INDIVIDUAL 



22b TELEPHONE (Include Area Code) 22c. OFFICE SYMBOL 



OD Form 1473. JUN 86 



Previous editions are obsolete. 



SECURITY CLASSIFICATION OF THIS PAGE 



Unclassified 



