In addition, there have been no complaints regarding odours resulting from 

 fish, weed, etc. decaying within the FTB. 

 Man-Made Visibility 



The early season natural colouration and shore background do not lend 

 themselves to enhance the visibility of the breakwater. In addition, the 

 relatively low elevation of the night lighting is not easily seen. 



This lack of visibility may be accentuated by shore-side lighting so 

 that reasonably late at night, the breakwater appears to blend in with the 

 shore. On the positive side, no official complaints have been forwarded 

 to the Marina Committee - perhaps a case of "local knowledge" being suf- 

 ficient. 

 Performance 



This naturally is the prime criterion that must be satisfied prior 

 to addressing any other concerns. While a lengthy dissertation extolling 

 the virtues of the FTB design and its wave attenuating power can be made, the 

 best summary is that the 219 owners are very satisfied with the unit's 

 performance. The location of the facility with relatively short fetches, it 

 is felt, virtually guarantees success provided safe engineering standards 

 are adhered to. 

 Storage 



What do you do with an FTB in the off season? The main criterion 

 here must be to avoid damage by floating or pack ice. 



Common sense would say err on the safe side - if there is any chance 

 at all of ice damage, the FTB should be towed to a sheltered location. As 

 an alternative, it could perhaps be pulled to shore if the risk of silting 

 up the bottom cord of the FTB were not judged a problem. 



In the LaSalle Park case, a local firm. International Harvester Cor- 

 poration, has loaned the facility the use of a commercial sheltered slip 

 face through the off-season period. At a cost of roughly $18,000, the FTB 

 is dismantled and towed (by its erector) approximately three kilometres to 

 shelter and returned in the spring. It is thought that the towing cost is 

 easily justified when weighed against the potential cost of a spring break- 

 up of floating pack ice doing substantial damage to the FTB, 



To summarize, the decision to build an FTB with four years of expedience 

 now behind us has been the correct one. This technology can be endorsed for 

 similar applications. 



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