reinstallation of four Fleet nnoorings by Public Works Center, San Diego. 

 These were seven- and eight-legged moorings (BB Type) with Mark II peg-top 

 riser-chain mooring buoys. The codes of the work center performing the 

 various phases of the work are listed in Table 2. Sandblasting for surface 

 preparation of metal for painting was done by Work Center 540 (General 

 Support Shop). Both rigging and diving services fall under Work Center 540, 

 and this number will refer to rigging service unless otherwise specified. 



Table 2. Identification of Work Center Codes 



Code 



Work Center 



210 



Engineering Departnnent; Civil Engineering Division 



332 



Inspection Division 



525 



Paint Shop 



540 



General Support Shop 



542 



Welding Shop 



543 



Wharf Building Shop 



622 



Utilities Shop 



700 



Transportation Department (Equipment Rental) 



722 



Automotive Operations 



724 



Heavy Equipment Operations 



728 



Rigging Service (also Diving Service) 



772 



Heavy Equipment Maintenance 



Tables 3, 4, and 5 list Planning and Estimating Branch estimates for 

 work scheduled for moorings 34, 35, 36, and 37, respectively. The actual 

 man-hours spent to accomplish the work were considerably more than esti- 

 mated. Also, labor costs have since increased by 10% and material costs by 

 25% (40% for lumber. Work Center 534; 20% for paint, Work Center 525; 

 and 10% for other materials). This is tabulated in Table 6 along with correc- 

 tions for actual man-hours and material costs. From this table the projected 

 (June 1969) average removal, overhaul, and reinstallation costs for the mooring 

 were calculated to comprise 20%, 34%, and 43%, respectively, of the total 

 rehabilitation costs. The costs associated with the buoy comprised about 



