MUNICIPAL PIER 



SCALE IN FEET 



Figure 33. Layout of Fisherman's Wharf Harbor, CA 



with model data; evaluate surge within the harbor as a result of the break- 

 water construction; evaluate the effect of the structures on water circula- 

 tion; determine the effect of the structures on the littoral processes as well 

 as measure actual scour conditions; and monitor the structural integrity of 

 the breakwaters. At the end of the original monitoring study, no signifi- 

 cant evidence of deterioration or changes in alignment of the structures 

 was noted. Even after the 1989 Loma Prieta earthquake, no noticeable 

 changes or damage were detected. 



The Fisherman's Wharf breakwaters were inspected on 17 September 

 1998. Visual assessment of the structures was conducted by running a 

 boat along the sides of the breakwaters and walking the main breakwater 

 cap. A portion of the main detached breakwater is shown in Figure 34. 

 The inspection revealed no deterioration or apparent settlement of the 

 breakwaters. Numerous areas along the concrete piles between the main 

 breakwater cap and the waterline were spalled (Figure 35). These areas 

 are not threatening the structural integrity or function of the structure. 

 The overall condition of the breakwaters was very good to excellent. 



Burns Harbor Breakwater, Indiana 



Burns Harbor, Indiana, is located on the southern shoreline of Lake 

 Michigan, approximately 32 km (20 miles) southeast of Chicago, IL. 

 Breakwater construction at the site was completed in 1968, and harbor 

 dredging was completed in 1970. The Burns Harbor structure includes 

 a 1,415-m-long (4,640-ft-long) rubble-mound north breakwater with an 

 east-west alignment, a 365-m-long (1,200-ft-long) rubble-mound 



30 



Chapter 2 Project Descriptions and Inspection Results 



