Table 33 



Anacortes Harbor 



Anacortes, Washington 



Date(s) Construction and Rehabilitation History 



1919 The channel project was completed. 



1954 The project was modified to include the boat basin and two pile 



breakwaters. The project originally called for Just the 370-ft-long 

 southeast breakwater. The south side of the harbor was protected by 

 log booms owned by a local mill. With the closure of the mill, the 

 log booms were removed, and the south breakwater (350 ft) was 

 required. 



1957 Construction of the pile breakwaters was completed. The breakwaters 

 were constructed of treated timber pilings that were 14 in. in diam- 

 eter, with a minimum penetration of 16 ft, reinforced with 8- by 

 10-in. wales. A seven-pile dolphin was constructed at the Capsante 

 Waterway end of each breakwater. A cross section of the breakwaters 

 is shown in Figure 66. 



During a storm in November 1957, the breakwaters were seen to provide 

 inadequate protection against storms from the southeast. The break- 

 waters left a 100-ft wide channel for the Capsante Waterway. 



1958 The Seattle District and the North Pacific Division recommended ex- 

 tension of the breakwaters, but federal funds were unavailable. The 

 Port of Anacortes therefore extended the south breakwater to 440 ft 

 (total length). 



1964 Both breakwaters were extended to 470 ft. The extensions were in the 

 Capsante Waterway. To provide greater stability in the deeper waters 

 of the waterway, the toes of the extensions were protected by a rock 

 cover with a gravel and spalls blanket to a depth of -6 ft mllw and a 

 top width of 8 ft. 



1976 Both breakwaters were rehabilitated by cleaning and treating the pile 

 heads or replacing the piles. 



1982 The mooring basin was enlarged by the Port of Anacortes. 



1985 The harbor is illustrated in Figure 66. There have been no reports 

 of needed repairs or rehabilitation since 1976. 



142 



