Table 36 



Point Judith Harbor of Refuge Breakwaters 



Point Judith, R.I. 



Date(s) Construction and Rehabilitation History 



1891- Three rubble-mound breakwaters were constructed and maintained, 

 1914 providing a Harbor of Refuge at Point Judith (Figure 40). The 6,970- 

 ft-long V-shaped main, 2,240-ft-long east shore arm, and 3,640-ft- 

 long west shore arm breakwaters were built during 1891-99, 1903-09, 

 and 1911-14, respectively. The main breakwater was constructed in 

 water depths from 18 to 34 ft (relative to mlw), and the east and 

 west shore arms were built in depths of up to 26 and 18 ft, respec- 

 tively. The design cross section for the main and east shore arm 

 breakwaters (Figure 40, inset) had a +10 ft mlw crown elevation, a 

 20-ft crown width, a 1 V: 1H harbor side slope, and a composite sea- 

 side slope of 1V:2H and 1V:1H above and below -12 ft mlw, respec- 

 tively. Subsequent to construction of the main breakwater (date 

 unknown), the design sea-side slope on its west arm was changed to 

 1V:1.5H. Two design cross sections were used on the west shore arm 

 breakwater (Figure 40, inset). The landward 940 ft had an 8-ft crown 

 width and a +8 ft mlw crown elevation, and the remaining seaward 

 section had a 15-ft crown width and a +10 ft mlw crown elevation. 

 Slopes on both sections were 1V:1H and 1V:2H on the harbor and sea 

 sides, respectively. Core stone (size unknown) was placed to mlw on 

 all sections and facing stone (i.e. cover stone, size unknown) was 

 placed to a thickness of 10 ft on all sections, except on the west 

 shore arm's landward section where the thickness was 8 ft. A total 

 of 1,421,500 tons of stone was placed at total construction costs of 

 $2,1 49, 500. Starting in 1905, repairs were made on previously 

 completed portions of the breakwaters by adding and resetting 

 stone. Most of the repairs were located on the east arm of the main 

 breakwater and the east shore arm breakwater. These areas were 

 exposed to the largest waves generated by several winter storms which 

 occurred during this period. Maintenance costs totaled approximately 

 $190,000 using an additional 36,400 tons of stone. 



1927- Repairs were made to the main and east shore arm breakwaters which 

 1929 had numerous deficiencies in cross section due to wave attack. The 

 west shore arm breakwater was in good condition. Approximately 

 40,000 tons of stone were used for a total cost of $203,400. 



1935 The main breakwater was repaired using 6,760 tons of stone for a 

 total cost of $23,000. 



1939- Damaged sections of the main and east shore arm breakwaters, 

 1941 sustained during a 1938 hurricane, were repaired using new and reset 

 stone. A total of 46,700 tons of new stone and 4,980 tons of 

 salvaged stone were placed for a total cost of $253,400. 



(Continued) 

 79 



