Construction: Each timber caisson module is 6.1 m (20.0 ft) long and 3.0 m 



(10.0 ft) wide. In design, this FB is essentially a deep draft floating 

 dock. It is constructed of timber with primary flotation provided by 

 large polyethylene blocks. Modules are coupled together by steel rods 

 held fast by bolts. The finished breakwater will be in two sections, each 

 five modules long. 



Site: 



Dock/FB 



NEWPORT 

 HARBOR 



Dock/FB 



N 



t 



Yachting Center 



Installation: The breakwater will be tied to pilings. On the structure's 



exposed side, the pilings will be spaced 6.1 m (20.0 ft) apart and on its 

 leeward side, 12.2 m (40.0 ft) apart. 



Field Experience 



Operation: The breakwater is scheduled for installation in April 1981. No 

 operational experience has, as yet, been accrued. 



Maintenance: Scheduled maintenance will consist of removing the structure in 

 the winter for storing inland. 



Project Analysis: This project points up two important issues. The first is 

 the utility of many FB designs to work in a double capacity-- in this 

 case, as a set of docks. The second point of interest is the well defined 

 design goals set by the operator. Seldom has such explicit design 

 purposes been set forth in the surveys. However, there can be no question 

 that rigorously defining the future role of an FB will improve the design 

 process and, therefore, increase the chances that the project will meet 

 with success. This design merits further observation over time. 



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