The breakwater was installed in 1979 at a cost of $273 per foot. The 

 breakwater is anchored by pile bents, as illustrated in Figure 31. Those 

 responsible for the breakwater design, construction, and operation are as 

 follows: 



Owner-Operator ; 

 Designer: 



Port of Everett 

 Everett, Washington 



Reid, Middleton and Associates 

 Edmonds, Washington 



Breakwater Designer-Fabricator: Bellingham Marine Industries 



Bellinghara, Washington 



(2) Performance. The breakwater has performed favorably. The boat 

 channel is easy to keep under surveillance, so boat speeds are held in check. 



10. Port Orcha r d, Washingt on. 



a. Location. Port Orchard (Fig. 32) lies across Sinclair Inlet from 

 Bremerton, Washington. 



b. Site Conditions. The prevailing winds in the area are from the south, 

 so the harbor site is well shielded from that direction. The main exposures 

 are to the southwest and the northeast with fetches 1.5 and 4 nautical miles, 

 respectively. The windspeed-duration curves in Figure 28 are the best avail- 

 able data. 



Tide data are as follows : 



Highest (estimated): 14.7 feet MLLW 



MHHW; 

 Mean: 

 MLLW: 

 Lowest (estimated) 



11.7 feet 

 6.8 feet 

 0.0 foot 

 4.5 feet 



Tidal currents are less than 1 knot . 



c . Bre akwater Des cr iption . 



(1) De sign and I nstallati on. The breakwater is laid out in two 

 sections, as shown in Figures 32 and 33. The L-shaped section is 1,500 feet 

 long and composed of lightweight, reinforced concrete pontoons cast over solid 

 Styrofoam core units 3 by 12 feet and 20 feet long, with a draft of 1.8 feet. 

 Three of these pontoons were posttensioned together to form 63-foot modules 

 which were then joined with the connectors shown schematically in Figure 34; 

 four connectors were used at each joint. The west section is of similar 

 construction but the units are 3 by 8 by 12 feet and connected by wooden 

 walers for a length of 320 feet. 



53 



