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Section 5 Formulation of Alternative Plans

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

5-63

TABLE 5-21: ECOLOGICAL OUTPUTS (AVERAGE ANNUAL HABITAT UNITS)

USED FOR CE/ICA.

Average Annual Habitat

Units

Alternative 2

Alternative 3

Alternatives 4, 5 and 6

Lake Okeechobee 26363 27866 29358

Saint Lucie Estuary 164 175 180

Caloosahatchee 17422 18567 19667

Ridge and Slough 46385 48257 50040

Tree Island 2627 2819 3012

Adjusted Total* 90798 95362 99776

* Note: Totals are not additive due to the fact that tree island habitat units are adjusted (divided by a factor of

5.776) to account for geographic overlap with ridge and slough habitat.

Table 5-22 and Figures 5-12 and 5-13 represent the results of the cost-

effectiveness analysis for the five alternatives. Figure 5-13 shows costs and

outputs for all alternative plans. Table 5-22 shows that both the 10-foot

alternative (Alternative 3) and the 12-foot (Alternative 4) earthen alternative

are cost-effective. The 10-foot alternative costs $53.8 million on an average

annual basis, provides 95,362 average annual habitat units, and costs $565 on

an average annual basis per average annual habitat unit. The 12-foot earthen

alternative costs $ 62.5 million on an average annual basis, provides 99,776

average annual habitat units, and costs $627 on an average annual basis per

average annual habitat unit. Figure 5-13 shows these cost-effective plans.

TABLE 5-22: RESULTS OF COST-EFFECTIVENESS ANALYSIS.

Average Annual

Habitat Units

Average Annual

Cost

Cost per

Habitat Unit

Cost Effective?

Alternative 2 90,798 $63,198,831 $696 No

Alternative 3 95,362 $53,834,816 $565 Yes

Alternative 4 99,776 $62,545,505 $627 Yes

Alternative 5 99,776 $62,654,650 $628 No

Alternative 6 99,776 $64,705,127 $649 No

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