Annual Value 



$2,140.00(A/P,7%,30) 



$2,140.00(0.0837) 



$179.12 



Replace 10-ft steel jet pump extensions every 8 years at a cost of $2 K per action (as per 

 Indian River Inlet). For Shinnecock, three actions will be required in the 30-year project 

 life: 



Action 1— P = 



$2 K(P/F,7%,8) 









$2 K(0.5664) 



= 



$1,132.80 



Action 2--P 



$2K(P/F,7%,16) 









$2K(0.3212) 



= 



$642.40 



Action 3--P = 



$2 K(P/F,7%,24) 









$2K(0.1824) 



= 



$364.80 





Present Value 



= 



$2,140.00 





Annual Value 



= 



$2,140.00(A/P,7%,30) 







= 



$2,140.00(0.0837) 







= 



$179.12 



Replace 30-deg steel elbows every 8 years at a cost of $1.4 K per action (as per Indian 

 River Inlet). For Shinnecock, three actions will be required in the 30-year project life: 



Action 1— P = 



$1.4K(P/F,7%,8) 







$1.4K(0.5664) 



$792.96 



Action 2--P = 



$1.4K(P/F,7 3 / 8 ,16) 







$1.4K(0.3212) 



$449.68 



Action 3-P 



$1.4 K(P/F,7%,24) 







$1.4 K(0. 1824) 



$255.36 





Present Value = 



$1,498.00 





Annual Value = 



$l,498.00(A/P,7 3 /s,30) 





= 



$1,498.00(0.0837) 





= 



$125.38 



Pipeline 



a. Replace flexible dredge hoses every 5 years at a cost of $20 K per action (as per Indian 

 River Inlet). For Shinnecock, five actions will be required in the 30-year project life: 



Action 1--P 



Action 2--P 



Action 3--P 



$20 K(P/F,7%,5) 

 $20 K(0.7009) 

 $20K(P/F,7%,10) 

 $20K(0.4915) 

 $20K(P/F,7 3 /s,15) 

 $20 K(0.3448) 



$14,018.00 



$9,830.00 



$6,896.00 



112 



Appendix I Capital Replacement Costs, Alternative 2 



