Table 25 



Casey's Pass Jetties (Venice Inlet) 



Venice, Florida, SAJ 



Date(s) Construction and Rehabilitation History 



1937 Two parallel, 660-ft-long steel sheet-pile jetties, spaced 300 ft 



apart, were constructed at this man-made inlet. Each jetty was com- 

 posed of 19 cylinders (caissons), 15 to 20 ft in diameter and inter- 

 connected by linear sections of sheet pile (Figure 39) . Each 

 cylinder was backfilled with sand, and a stone and grout cap was 

 placed in the upper foot. The crest elevation of the jetties was 

 +6 ft mlw. A channel 100 ft wide and 8 ft deep was dredged through 

 the inlet. The jetties were connected to the shore via creosoted 

 wooden sheet-pile bulkheads. The total cost for the jetties and 

 bulkheads was $137,000. 



1938- Limestone enrockments were placed along all exposed sections of the 

 1940 jetties (Figure 39). The section consisted of (total weights in 



parentheses) a crushed stone bedding layer (4,000 tons), followed by 

 a layer of 50- to 200-lb (8,000-ton) stone, and covered with 500- to 

 6,000-lb (10,800-ton) stone placed on 1V:2H side slopes at an ele- 

 vation of +2 ft mlw. The total cost of the improvements was 

 $122,000. 



1950- Jetty surveys showed that the heads and seaward sides of the jetties 

 1951 needed repairs. The channel side of the north jetty needed repair 



because of the proximity of the channel causing scouring at the toe. 



1955 Repairs were made to the seaward end of the south jetty which was in 

 a "severely damaged" condition. A total of 650 tons of 3- to 6-ton 

 cover stone was placed on a 2-ft-thick foundation blanket of 2- to 

 6-in. stone at a total cost of $6,500. Repairs were also made to 

 the collapsed concrete caps on the 1st and 8th caisson from its sea- 

 ward end. Nearly 3/4 of the first caisson was severely damaged, and 

 3- to 6-ton cover stone was placed to +6 ft mlw with a 10-ft crown 

 width. The upper 4 ft of the 8th caisson was filled with stone, and 

 the upper foot of this was capped with concrete grout. 



1963 Repairs to the concrete cylinder caps and jetty stone/rock revet- 

 ments were made at a cost of $30,000. At this time, the channel was 

 dredged to a depth of -9 ft mlw. Along the exposed seaward sec- 

 tions, 3- to 6-ton capstone totaling 615 and 770 tons was placed on 

 the north and south jetties, respectively, and approximately 20 cap- 

 stones were reset. Several of the seaward cylinders were repaired. 

 Their caps and sand were removed to -1 ft mlw, replaced with the 

 broken pieces of the cap and 20- to 200-lb stone, and grouted with 

 concrete throughout the upper 18 in. of stone. 



(Continued) 

 71 



