Table 21 



Port Everglades (Holl3rwood) Harbor Jetties 



Hollywood, Florida, SAJ 



Date(s) Construction and Rehabilitation History 



1928 Jetties were constructed (Figure 35) by local interests using native 

 Florida limestone which ranged in weight from 300 lb to 8 tons 

 (average of 2 tons) . The design elevation, width, and side slopes 

 were +6 ft mlw, 12 ft, and 1V:1.5H, respectively. 



1931 The structure came under Corps jurisdiction in 1930. A survey of 

 the existing structure showed elevations of from +10 to ft mlw at 

 the shoreward and seaward ends, respectively. Storm and wave action 

 was believed to be major cause of subsidence at the seaward end. 

 Seaward ends of jetties were in approximately 12 ft of water, and a 

 35-ft-deep channel passed between the jetties. The jetties were 

 approximately 1,200 ft apart at their shoreward ends and converged 

 at their seaward ends to a distance of 550 ft. The north and south 

 jetties were approximately 1,250 and 1,025 ft long, respectively. 

 Natural rock strata underlying the jetty and inlet areas exists at 

 -10 to -15 ft mlw. 



1932 Repairs made to the jetties consisted of placement of 2- to 10-ton 

 granite stone to a height of +6 ft mlw, a crest width of 12 ft, and 

 side slopes of IV: 2H. In addition, some old stone (about 400 pieces 

 each weighing 1,000 lb or more) was rehandled in the construction 

 phase. Total estimated quantities of stone were 4,900 and 



5,230 tons for the north and south jetties, respectively. Total 

 cost of the repair was $49,400. 



1935 A field survey showed approximate lengths of 1,250 and 1,000 ft for 

 the north and south jetties, respectively. Centerline elevations on 

 the north jetty range from +10 to +5 ft mlw over the shoreward (old) 

 500 ft and from +4 to +8 ft mlw over the seaward (repaired) 750 ft. 

 Centerline elevations on the south jetty range from +9 to +7.5 ft 

 mlw over the shoreward (old) 300 ft and from +9 to +4 over the sea- 

 ward 700 ft. The outer 100 ft of each jetty appeared to have sub- 

 sided 1 to 2 ft from the design elevation of +6 ft mlw. 



1939 The jetty survey showed no major changes in centerline elevations. 

 The north jetty elevations were +12 to +8 ft mlw from (shoreward 

 end) to 300 ft, +8 to +4 ft mlw from 300 to 1,200 ft, and +6 to 



+3 ft mlw from 1,200 to 1,250 ft (seaward end). On the south jetty 

 the elevations were +9 to +6 ft mlw from (shoreward end) to 

 220 ft, +10 to +7 ft mlw from 220 to 830 ft, and +7 to +3 ft mlw 

 from 830 to 1,000 ft (seaward end). 



1940 Repairs to jetties consisted of raising the seaward portions, 

 straightening the seaward end of the south jetty, and placement of a 

 special head section. The repaired lengths were 1,280 and 980 for 



(Continued) 

 63 



