Table 31 



Menemsha Creek Jetties 



Martha's Vineyard, Mass, 



Date(s) 

 1945 



1969 



1981 



1982- 

 1987 



Construction and Rehabilitation History 



The east and west jetties, approximately 250 and 435 ft long, 

 respectively, were constructed by non-Federal interests prior to 1945 

 (Figure 34). The project, adopted by the government in 1945, 

 included maintenance of the riprap jetties. 



The west jetty was rebuilt by placing approximately 2,100 tons of 

 cover stone and 900 tons of seal stone. The repairs were made over a 

 distance of 435 ft at a contract cost of $67,500. The design section 

 consisted of a +7 ft mlw crown elevation, a 6-ft crown width, and 

 1V:1.5H side slopes. 



The east jetty was rebuilt with 20-to 400-lb core stone and 1- to 3- 

 ton cover stone. The design section had 1V:1.5H side slopes and a 6- 

 ft crown width at +7 ft mlw. The contract price for placing an 

 estimated 2,750 tons of stone was $91,600. 



Annual visual inspections of the jetties indicated they were in 

 good condition. 



VINEYARD 



M £ <V E 



SOUND 



U S COAST GUARJX STATION 





SIDE S 

 1 ON 



LOPE 

 .3 ~~~- 



1. 6 ' 



>v SIDE 5LOPE 

 ^N^^"^ 1 ON 1.9 





EL 70 1 





% 











MLW 





















SECTION OF 



SCALE IN \r 



LpL-I'LJ 



JETTIES 



Figure 34. Plan view and typical section of Menemsha Creek jetties, 

 Martha's Vineyard, Mass. 



69 



