Table 6-8. Time and costs of example model studies. 



Model study 



Actual 



Estimated in 1976 



Time 



(mo) 



Costs 



Time 



(mo) 



Costs 



Burns Harbor breakwater 

 Monterey Harbor breakwater 

 Humboldt Bay jetty 

 Indiana Harbor breakwater 

 Texas City seawall 

 Oak Harbor breakwater 



12.0 

 4.0 



45.0^ 

 3.0 



33.0» 



21.0 



$ 19,000 



2,000 



102,500 



2 



47,000 

 26,000 



11.0 

 3.5 



24.0 

 3.0 



18.0 



12.0 



$ 36,000 



6,000 



140,000 



34,000 



88,000 



43,000 



^ Part-time work. 

 ^ Costs not available. 



Many factors can determine the cost of model studies, including the 

 complexity of the phenomena involved; the availability of prototype data 

 for selecting design conditions and designing the model; the availability 

 of wave flumes, wave generators, electrical recording equipment, adequate 

 shelter space, and armor vinits of the required shape and weight; the size 

 of the prototype compared with the available equipment; the extent of the 

 testing program required, and the technical abilities of the engineers 

 involved in the study. However, the largest item of expense is usually 

 the cost of conducting the testing program. 



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