Table 10 (Concluded) 



Date 



Construction and Rehabilitation History 



1962- side slopes. The west Jetty improvements were brought up to an 

 1963 elevation of +4 ft mlg. These repairs were made with 3,000 tons of 

 (cont.) 5- to 8-ton stone and rearranging 1,500 tons of stone at a cost of 



$48,000. These repairs made the effective lengths of the east and 



west Jetties 8,200 and 7,700 ft, respectively. 



1984 The landward 6,250-ft section of the west Jetty was repaired, and its 

 landward end was extended 400 ft (tie-in). The repairs were made 

 with stone varying in size up to 3,500 lb (1,000-lb average for stone 

 between 200 and 3,500 lb (85 percent of total)). The stone was to be 

 placed to a crown elevation of +4 ft mlg, a 10-ft crown width, and 

 1V:2H side slopes. Stone size was based on a 4-ft design wave 

 height. The purpose of the landward extension was to prevent 

 continued erosion caused by river runoff. Prior to these repairs 

 center-line elevations varied from +2- to +4-ft mlg. The cost and 

 quantity of stone placed were $492,000 and 28,000 tons, respectively. 



EXISTING STOKE v 



TYPICAL SECTION 

 1984 WEST JETTY REPAIRS 



CORE STONE 25 

 LBS. TO 4 TONS 



WEST JETTY 



COVER STORE 



5 TO 10 TONS 



1. 23 



EAST JETTY 

 TYPICAL SECTIONS 

 (1942 EXTENSION) 



Figure 21. Plan view of Calcasieu Pass jetties and typical sections 



51 



