Table 12 



Lake Montauk Jetties 



Star Island, New York 



New York District 



Date(s) Construction and Rehabilitation History 



1926 Private interests constructed jetties east and west of the lake en- 

 trance. The east jetty was 750 ft long (Figure 16), and the west 

 jetty was 981 ft long. Crest elevations were +6.0 ft and +8.0 ft 

 mean low water (mlw) west and +8.0 ft mlw east. Crown width varied 

 from 5.0 to 6.0 ft, and the side slopes were 1V:1.5H. One- to 

 4.0- ton stone was used and placed in random fashion. 



1942 The west jetty was extended 231 ft shoreward at the request of the 

 Department of the Navy using $82,738 of Navy funds (Figure 16). 

 Crest elevation of the extension was +8.0 ft mlw, crown width was 

 6.0 ft, and side slopes were 1V:1.5H. Cover stone used was 4.0 to 

 6.0 tons, and core stone was 8.0 to 6,000 lb. 



1967 A survey indicated the jetty was in poor condition. Proposals were 

 made to repair and extend the jetties using a design wave of 16.0 ft 

 and 5.8 sec. 



1968 The jetties were repaired, and the east jetty was extended 350 ft. 

 The cost of repairs and the extension was $526,600, and 18,400 tons 

 of stone were used. 



1986 No further repair or maintenance information has been found. 



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