Specifications

Table of Contents
EAA Storage Reservoirs Revised Draft PIR and EIS February 2006
viii
5.4.4 Risk and Uncertainty.......................................................................................... 5-49
5.4.4.1 Hydrologic Modeling................................................................................... 5-49
5.4.4.2 Engineering.................................................................................................. 5-50
5.4.4.3 Evaluation of System-wide Ecological Effects of Hydrologic
Performance Measures................................................................................. 5-50
5.4.4.4 Variability of Ecological Response Time.................................................... 5-51
5.4.4.5 Sequencing and Adaptive Assessment......................................................... 5-52
5.4.4.6 Construction Cost Estimates........................................................................ 5-52
5.4.4.7 Project Schedule...........................................................................................
5-52
5.4.4.8 Land Available and Acquisition Issues........................................................
5-52
5.4.5 Evaluation of Alternative Plans ......................................................................... 5-53
5.4.5.1 Evaluation Accounts....................................................................................5-56
5.4.5.2 NED Account............................................................................................... 5-56
5.4.5.3 NER Account...............................................................................................
5-56
5.4.5.4 EQ Account..................................................................................................
5-57
5.4.5.5 Regional Economic Development Account................................................. 5-58
5.4.5.6 OSE Account ............................................................................................... 5-58
5.4.5.7 Real Estate Considerations .......................................................................... 5-59
5.4.5.8 Construction Risk & Uncertainty................................................................. 5-59
5.4.5.9 Other Principals and Guidelines Criteria.....................................................5-61
5.4.6 Plan Comparison using Cost-Effectiveness and Incremental Cost Analyses
(CE/ICA)...................................................................................................... 5-62
5.5 IDENTIFICATION OF THE NATIONAL ECOSYSTEM RESTORATION
(NER) PLAN ..................................................................................................... 5-66
5.6 PERFORMANCE OF THE NEXT ADDED INCREMENT (NAI) ....................... 5-68
5.6.1 Lake Okeechobee NAI Performance ................................................................. 5-68
5.6.2 St. Lucie Estuary NAI Performance .................................................................. 5-69
5.6.3 Caloosahatchee NAI Performance..................................................................... 5-69
5.6.4 Ridge and Slough and Tree Island NAI Performance .......................................5-70
5.7 JUSTIFICATION OF THE TENTATIVELY SELECTED PLAN (TSP) ON A
NEXT-ADDED INCREMENT (NAI) BASIS..................................................
5-70
5.7.1 Risk and Uncertainty.......................................................................................... 5-71
5.8 TRADE-OFF ANALYSIS.......................................................................................
5-71
SECTION 6
6.0 THE SELECTED ALTERNATIVE PLAN ...................................................................
6-1
6.1 DESCRIPTION OF PLAN COMPONENTS............................................................
6-1
6.1.1 Features................................................................................................................ 6-4
6.1.2 Pump Stations ...................................................................................................... 6-5
6.1.2.1 S-610 Pump Station .......................................................................................
6-5
6.1.2.2 S-611 Pump Station ....................................................................................... 6-5
6.1.3 Gated Culverts .....................................................................................................
6-6
6.1.3.1 S-601 Gated Culvert Structure....................................................................... 6-6
6.1.3.2 S-602 and S-603 Gated Culvert Structures....................................................
6-6
6.1.3.3 S-604 Gated Culvert Structure.......................................................................
6-6