Shinnecock Inlet Replacement/Overhaul Cost Calculations 



Crawler Crane 



a. Rebuild pins, tracks, rollers, idlers and sprockets every 6 years at a cost of $14 K per 

 action (as per Indian River Inlet). For Shinnecock, a total of four actions will be required 

 in the 30-year project life: 



Action 1— P 



Action #2-P 



Action #3-P = 



Action #4-P 



$14K(P/F,7%,6) 

 $14 K(0.6528) 

 $14K(P/F,7%,12) 

 $14 K(0.4264) 

 $14K(P/F,7%,18) 

 $14K(0.2788) 

 $14K(P/F,7%,24) 

 $14K(0.1824) 

 Present Value 



$9,139.20 



$5,969.60 



$3,903.20 



$2.553.60 

 $21,565.60 



Annual value 



$21,565.60(A/P,7%,30) 



$21,565.60(0.0837) 



$1,805.04 



b. Overhaul crane engine every 10 years at a cost of $8 K per action (as per Indian River 

 Inlet). For Shinnecock, a total of two actions will be required in the 30-year project life: 



Action 1-P 



Action 2-P 



$8K(P/F,7%,10) 

 $8K(0.4915) 

 $8K(P/F,7%,20) 

 $8K(0.2420) 

 Present Value 



$3,932.00 



$1.936.00 

 $5,868.00 



Annual Value 



$5,868(A/P,7%,30) 



$5,868(0.0837) 



$491.15 



Caterpillar Diesel Engine (slurry booster pumps) 



Overhaul pump engine every 20 years at a cost of $19.6 K per action (as per Indian River 

 Inlet). For Shinnecock, only one action will be required in the 30-year project life: 

 Action 1-P = $19.6K(P/F,7%,20) 



$19.6Kf 0.2420) = $4.743.20 



Present Value = $4,743.20 



Annual Value 



$4,743.20(A/P,7%,30) 



$4,743.20(0.0837) 



$397.01 



Appendix I Capital Replacement Costs, Alternative 2 



13 



