A series of small-scale laboratory experiments was ■ conducted to test 

 the effectiveness of three methods of protection against bluff erosion: 

 groins with and without sandfill and a parallel seawall 20 feet (proto- 

 type) from shore. A submerged sill with height equal to 0,4 dg was 

 also tested. Results are presented in graphical form, 



19. BREBNER, A., and KENNEDY, R.J., "Littoral Drift in Lake Ontario 

 Harbors," Annual Meeting of the Engineering Institute of Canada^ 

 June 1959. 



Keyuords: Accretion, Canada (High Park-Toronto), Littoral transport. 

 Segmented breakwater 



The littoral drift problem for the north shore of Lake Ontario is 

 examined. Sources of littoral material are identified and the mecha- 

 nisms of their movement are reviewed. Remedial measures for erosion 

 problems, such as groins and beach fills, are discussed. The report 

 includes a photo of the use of detached breakwaters at High Park, Toronto, 

 Necessary considerations for harbor construction and operation are also 

 presented. 



20. BRISTOW, R.C., "Cochin Harbour Works," Proceedings of the Institution 

 of Civil Engineers, Vol, 230, Pt. II, 1929-1930, pp, 40-71, 



Keywords: Accretion, India (Cochin and Vypeen) , Segmented breakwater, 

 Structural dimensions 



The construction of a deepwater port at Cochin is discussed, Part 

 of that work involved the use of segmented breakwaters for stabilizing 

 eroding shores at Vypeen. The performance of the breakwaters was satis- 

 factory and after 8 years the erosion problem was claimed to have been 

 completely solved. 



21. BRUNO, R.O., and GABLE, C.G., "Longshore Transport at a Total Lit- 

 toral Barrier," Prooeedings of the 15th Conference on Coastal Engi- 

 neering, American Society of Civil Engineers, 1976, pp. 1203-1222 

 (also Reprint 77-6, U.S. Army, Corps of Engineers, Coastal Engineer- 

 ing Research Center, Fort Belvoir, Va,, NTIS AD A042 473). 



Keywords: Accretion, California (Channel Islands), Detached breakwater. 

 Littoral transport, Sand trap 



An analysis of longshore transport at a littoral barrier is pre- 

 sented. Channel Islands Harbor, California, was selected as the study 

 site because its offshore breakwater and jetties form a unique complete 

 littoral barrier. Repetitive surveys accurately determined that long- 

 shore transport rates in one direction ranged from 160,000 to 1,284,000 

 cubic meters per year. Using visual observations of surf parameters, the 

 range of longshore wave thrust was computed as 145 to 1,988 newtons per 

 meter. A comparison was made of the relation of wave thrust and longshore 

 sediment transport. This study indicates that in an environment of high 



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