6. Following the entrance meeting, all available information on the 

 district's coastal structures (design memorandums, plans and specifications 

 texts and drawings, reconnaissance reports, photographs, etc.) were retrieved 

 from the district's files and duplicated. The data were then taken back to 

 CERC for scrutiny by the principal investigators assigned to the various work 

 units. 



7. Where representative structures were near the district offices, 

 site visits were made to gain a better understanding of the type of construc- 

 tion used on the district's structure. During these site visits, photographs 

 were taken to document the above-water conditions of the structures. Because 

 of time constraints and remoteness of the structures, site visits were not 

 possible at some of the district offices. 



8. Prior to departure from the district office, an exit meeting was 

 held for WRB personnel to summarize their findings to ensure that no miscon- 

 ceptions were drawn from the data gathered. Where possible, the same 

 personnel attended the exit meeting as had attended the entrance meeting. 



9. In some instances, the quantity of data contained in the district's 

 files was so massive that time was not sufficient for WRB personnel to dupli- 

 cate the data during the time allotted for the visit. When this situation 

 occurred, a request was made for the district to provide personnel, when and 

 where available, to duplicate data and send it to CERC. In some instances, it 

 was determined that an additional visit to a particular district by WRB 

 personnel was needed to adequately review the available data. 



Pacific Ocean Division 



10. The Honolulu District of POD has three breakwaters which have 

 problems and/or design questions that are related to toe stability. Two of 

 the structures, Nawiliwili and Hilo, had a related problem. The head and 

 adjacent 500 ft* of breakwater trunk at Nawiliwili Harbor, Kauai, Hawaii 

 (Figure 1), were rehabilitated in 1959 using 17.8-ton tribars. Model 



* A table of factors for converting non-SI units of measurement to SI 

 (metric) units is presented on page 3. 



