<br />c. During the formulation of a potential plan of improve-
<br />Ment, interest rates increased from 3.250 percent to 5.375 percent,
<br />and an interest rate of 7.000 percent is probable. Construction
<br />costs ~ave risen during the same period. Economic benefits and
<br />costs for the seven reservoir sites ~iven detailed consideration
<br />are shown in table~. To illustrate the effect of changes in
<br />interest rates on these projects, annual benefits and costs are
<br />given for 3.250, 5.375, and 7.000 percent interest rates with
<br />and without the authorized Narrows Reservoir in operation.
<br />
<br />Reservoir
<br />--
<br />
<br />Agate
<br />
<br />East Bi.1ou
<br />Creek
<br />
<br />'-tictdle
<br />Bijou Cr.
<br />-!IA"
<br />
<br />r~idJlc
<br />Ili.lou Cr.
<br />"':"8"
<br />
<br />j"!wJ.dy Cr.
<br />
<br />\Vest Bijou
<br />Cr. _"Al!
<br />
<br />\Vest Ilijou
<br />Cr. -!"B!I
<br />
<br />Table 9
<br />CO~WARISON OF BENEFITS AND COSTS
<br />BIJOU CREEK IlASIN RESERVOIRS
<br />
<br />Interest
<br />Rate With
<br />in Annual
<br />Percent Benefits
<br />-- ----
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />3.250
<br />5.375
<br />7.000
<br />
<br />$
<br />
<br />276,200 $
<br />261,400
<br />254,400
<br />
<br />1,712,700
<br />1,634,300
<br />l,589,800
<br />
<br />300,500
<br />285,300
<br />277 ,lOO
<br />
<br />300.500
<br />285,300
<br />277,lOO
<br />
<br />267,300
<br />254,300
<br />247,lOO
<br />
<br />619,500
<br />590,700
<br />574,600
<br />
<br />619,500
<br />590,700
<br />574,600
<br />
<br />Na.rrows
<br />Annual
<br />Costs
<br />
<br />379,300
<br />562,700
<br />713,900
<br />
<br />l,078,000
<br />1 ,663 ,100
<br />2,139,400
<br />
<br />B/C
<br />Ratio
<br />
<br />0.7
<br />0.5
<br />0.4
<br />
<br />1.6
<br />0.98
<br />0.7
<br />
<br />341,900 0.9
<br />507,700 0.6
<br />641',200 0.4
<br />
<br />408,300 0.7
<br />591,800 0.5
<br />742,900 0.4
<br />
<br />388,500
<br />571,800
<br />722,600
<br />
<br />597,200
<br />905,lOO
<br />l,161,800
<br />
<br />3l6,800
<br />453,000
<br />566,<100
<br />
<br />26
<br />
<br />0.7
<br />0.4
<br />0.3
<br />
<br />1.04
<br />0.7
<br />0.5
<br />
<br />2.0
<br />1.3
<br />1.0l
<br />
<br />Without
<br />Annual
<br />Ilenefits
<br />
<br />.$
<br />
<br />230,200 $
<br />217 ,400
<br />210,700
<br />
<br />1,l37,500
<br />1,083,200
<br />l,052,800
<br />
<br />230,500
<br />203,200
<br />211 ,700
<br />
<br />230,500
<br />203,200
<br />211,700
<br />
<br />195,700
<br />l85,700
<br />lBo,300
<br />
<br />419,100
<br />398,700
<br />387,500
<br />
<br />4l<1,100
<br />31)[\ ,700
<br />387,500
<br />
<br />Narrows
<br />Annual
<br />Costs
<br />
<br />379,300
<br />562,700
<br />713,900
<br />
<br />1,078,000
<br />1,663,100
<br />2,139,400
<br />
<br />341,900 0.7
<br />507,700 0.1,
<br />61,4 ,200 0 . 3
<br />
<br />B/C
<br />Ratio
<br />
<br />0.6
<br />0.4
<br />0.3
<br />
<br />l.l
<br />0.7
<br />0.5
<br />
<br />408,300 0.6
<br />59l,800 0.3
<br />71'2,900 0.3
<br />
<br />388,500
<br />571,Roo
<br />722,600
<br />
<br />597,200
<br />905,100
<br />1,l61,800
<br />
<br />3l6,800
<br />453,000
<br />566,900
<br />
<br />0.5
<br />0.3
<br />0.2
<br />
<br />0.7
<br />0.4
<br />0.3
<br />
<br />1.3
<br />0.9
<br />0.7
<br />
|