Table 4 

 Smiths Creek Breakwater 



Smiths Creek (Pamlico County), North Carolina, SAW 



Date(s) 

 1956 



Construction and Rehabilitation History 



1973 



1985 



A 775-ft-long rubble-mound breakwater was constructed to provide 

 channel and harbor protection (Figure 7) . The cross-section geom- 

 etry consisted of a +4-ft-mlw crown elevation, a 4-ft top width, and 

 side slopes of 1V:1.5H and 1V:1.25H on the river and harbor sides, 

 respectively. The structure was capped with 1-ton stone. The armor 

 stone was sized using Hudson's slope stability formula and a 4-ft 

 design wave height. The core and 1-ft-thick bedding layer consisted 

 of somewhat smaller stone. The estimated construction cost and 

 amount of stone needed were $65,600 and 6,060 tons, respectively. 



An inspection of the breakwater showed that an 80-ft section, lo- 

 cated approximately 100 ft from the outer end of the structure, was 

 2 ft below grade. This occurrence was attributed to structure set- 

 tlement. Overall, the breakwater was considered to be in very good 

 condition. 



The breakwater has required no maintenance or repair since its 

 completion. 



Figure 7. Smiths Creek (Pamlico 

 County) , North Carolina 



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