SEA 5 IDE 



HARBOR S I DE 



STONE 

 C11-T9 TONS} 



Existing Conditions 



Figure 2. Cross section of existing Redondo Beach 

 King Harbor breakwater 



Problem 



6. Wave energy is transmitted through and over the structure and also 

 through the harbor entrance. Excessive wave activity is caused by frequent 

 overtopping of the lower portion of the NB, which has resulted in death and 

 serious injuries to fishermen on the breakwater. Vessels moored in King 

 Harbor and businesses, buildings, and land bordering the harbor are damaged 

 from wave energy entering the harbor. Typical damage includes cleats pulled 

 out of docks, boats damaged in slips, mooring dragged, damage to mooring 

 lines, city-owned waterfront property flooded, destruction of property due to 

 wave forces, and small boats capsized. 



Purpose of Study 



7. Local interests have expressed a need for modifications to the 

 breakwaters to eliminate excessive wave action in the harbor and damages to 

 the surrounding businesses. Plans for new businesses and beautif ication pro- 

 jects are being considered upon completion of the modifications. 



8. At the request of the US Army Engineer District, Los Angeles (SPL) , 

 a coastal hydraulic model investigation was initiated by the Coastal Engineer- 

 ing Research Center, US Army Engineer Waterways Experiment Station. The pur- 

 pose of the study was to evaluate the stability and general overtopping 

 conditions for the proposed rehabilitation design for the lower portion of the 

 NB (Sta 36+00 to Sta 52+00) and determine the most economical design that 



