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<br />downstream of the spillway would need to be regraded to divert flows from the toe of the dam, The
<br />low section at the east end of the dam would need to be raised approximately 1,5 feet at the dam and
<br />extended approximately 300 feet to the east where it would join the existing hillside. This extension
<br />would be approximately 16 feet wide at the top with a 10: I upstream face and a 2,5: I downstream
<br />face, An easement for the 300-foot extension, a flood easement between the extension and Reservoir
<br />#6, and easements for the extension of the west spillway would be required. Figure 4 shows a plan
<br />view of the dam and spillway for this option, Cost estimates for this option are shown in Table 4,
<br />
<br />TABLE 4. COST ESTIMATE NPIC #5 SPILLWAY OPTION # 2.
<br />
<br />ITEM DESCRIPTION QUANTITY UNITS UNIT PRICE AMOUNT
<br />1. MOBILIZATION. INSURANCE, BONDS 1.00 L.S, $8,000,00 $8,000.00
<br />2, STRIPPING AND CLEARING 1.00 L.S. $3,000.00 $3,000.00
<br />3. EARTH EXCAVATION 4100,00 c.Y, $2.00 $8,200,00
<br />4. EARTH FILL 3400,00 c.Y, $3.00 $10,200,00
<br />5, SPOIL MATERIAL 700,00 C,Y, $1.50 $1,050,00
<br />6, RIPRAP 1725.00 TON $25,00 $43,125,00
<br />7, RIPRAP BEDDING 600,00 TON $18,00 $10,800.00
<br />8. ROAD BASE 375,00 TON $18.00 $6,750,00
<br />9. CONCRETE 75,00 C,Y. $350,00 $26,250.00
<br />10. SEEDING 6,00 ACRE $1,000,00 $6.000,00
<br />Ii. EASMENTS 1.00 L.S. $40,000.00 $40,000.00
<br />12, ENGINEERING AND CONTINGENCIES 1.00 L.S. $37,000,00 $37.000.00
<br />
<br />TOTAL
<br />
<br />$200,375,00
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