Table 24. Cost Value Assumptions 

 (Data compiled from San Diego moorings) 



Code 



Item 



Cost {$) for Mooring — 



With Cathodic 

 Protection 



Without Cathodic 

 Protection 



Class BB 

 (8 legs) 



Class D 

 (3 legs) 



Class BB 

 (8 legs) 



Class D 

 (3 legs) 



A 



B1 

 B2 



C 

 D 



Annual in-place maintenance (for 

 example, inspection, realignment, 

 lighting repair) 



Removal, overhaul, and reinstallation 



Every 3 years (entire mooring) 

 Every 5 years (buoy only) 



Replacement of deteriorated 

 mooring chain and overhaul of 

 buoy every 1 5 years (assuming 

 no scrap value) 



Anode installation at beginning and 

 replacement every 10 years (con- 

 servative estimate). (Assume 

 indefinite life for ground tackle) 



500 

 600 



9,000 



350 

 535 



4,500 



500 

 10,000 

 70,000 



350 



5,350 



27,000 



Table 25. Present Value and Equivalent Annual Payment for Moorings 

 (Values computed from Table 23) 



Type 



of 



Mooring 



Cathodic 

 Protection 



Present Value, 

 P 



($) 



Equivalent Annual 



Payment, N 



($) 



Class BB 



without 



99,193 



6,453 



(8 legs) 



with 



29,355 



1,910 



Class D 



without 



46,892 



3,050 



(3 legs) 



with 



16,215 



1,055 



49 



