Appendix A Engineering Appendix APPENDIX A ENGINEERING APPENDIX Post Authorization Change Report March 2018 Appendix A Engineering Appendix This page intentionally left blank. Post Authorization Change Report March 2018 Appendix A Engineering Appendix TABLE OF CONTENTS A.0 ENGINEERING DESIGN APPENDIX ............................................................................................... A.0-1 A.1 TENTATIVELY SELECTED PLAN .................................................................................................... A.1-1 A.2 STATUS OF ENGINEERING DESIGN ACTIVITIES AND ANALYSES.................................................. A.2-1 A.2.1 LEVEL OF DESIGN EFFORTS .................................................................................................... A.2-1 A.2.2 RECOMMENDATION FOR DESIGN COMPLETION .................................................................. A.2-1 A.3 GENERAL CONSTRUCTION PROCEDURES DISCUSSION .............................................................. A.3-1 A.3.1 GENERAL CONSTRUCTION RECOMMENDATIONS ................................................................. A.3-1 A.3.2 CONSTRUCTION CONTRACTS AND SCHEDULE ...................................................................... A.3-1 A.3.3 CONSTRUCTION SEQUENCING AND STAGING ...................................................................... A.3-1 A.3.3.1 General .......................................................................................................................... A.3-1 A.3.3.2 Access ............................................................................................................................ A.3-1 A.3.3.3 STA, Reservoir and Canal Embankments ....................................................................... A.3-2 A.3.3.4 Pump Station ................................................................................................................. A.3-3 A.3.3.5 Control Structures ......................................................................................................... A.3-3 A.3.3.6 Agricultural Operations ................................................................................................. A.3-3 A.3.3.7 Staging ........................................................................................................................... A.3-3 A.3.4 DEMOLITION AND DISPOSAL ................................................................................................. A.3-4 A.3.5 OTHER PROJECTS AFFECTING CONSTRUCTION ..................................................................... A.3-4 A.4 GENERAL DESIGN REQUIREMENTS AND CRITERIA ..................................................................... A.4-1 A.4.1 PROJECT LIMITS AND SITE DATUM ........................................................................................ A.4-1 A.4.2 SERVICE LIFE .......................................................................................................................... A.4-1 A.4.3 UNITS ..................................................................................................................................... A.4-1 A.4.4 CODES AND STANDARDS ....................................................................................................... A.4-1 A.4.4.1 General .......................................................................................................................... A.4-1 A.4.4.2 Site Work Design Criteria .............................................................................................. A.4-2 A.4.4.3 Geotechnical Design Criteria ......................................................................................... A.4-2 A.4.4.4 Architectural Design Criteria ......................................................................................... A.4-3 A.4.4.5 Structural Design Criteria .............................................................................................. A.4-3 A.4.4.6 Special Mechanical Equipment Design Criteria ............................................................. A.4-4 A.4.4.7 HVAC, Plumbing and Fire Suppression .......................................................................... A.4-6 A.4.4.8 Fire Protection and Detection Design Criteria ............................................................... A.4-6 A.4.4.9 Electrical Design Criteria ................................................................................................ A.4-7 A.4.4.10 Instrumentation and Controls Design Criteria .............................................................. A.4-7 A.4.4.11 Telemetry System Design Criteria ................................................................................. A.4-8 A.4.4.12 Design Criteria Memoranda .......................................................................................... A.4-9 A.5 HYDROLOGY ................................................................................................................................ A.5-1 A.5.1 HAZARD CLASSIFICATION AND EMERGENCY EVACUATION REQUIREMENTS ....................... A.5-1 A.5.2 DESIGN STORMS AND FLOODS .............................................................................................. A.5-1 A.5.2.1 Design Case 1: 100-Year Wind with Probable Maximum Precipitation ........................ A.5-1 A.5.2.2 Design Case 2: Category Five Hurricane with 100-Year storm ...................................... A.5-1 A.5.2.3 Design Case 3: Probable Maximum Wind (200 mph) .................................................... A.5-2 A.5.2.4 Design Case 4: Storm Specific Wind and Precipitation .................................................. A.5-2 A.5.2.5 Summary ........................................................................................................................ A.5-2 A.5.3 A-2 RESERVOIR INFLOWS AND OUTFLOWS ........................................................................... A.5-3 A.5.3.1 Inflow Design Storm ...................................................................................................... A.5-3 Post Authorization Change Report March 2018 A-iii Appendix A Engineering Appendix A.5.3.2 Routing of Flood Flows .................................................................................................. A.5-3 A.5.3.3 Reservoir Discharges ..................................................................................................... A.5-4 A.5.4 WAVE AND OVERTOPPING ANALYSIS .................................................................................... A.5-4 A.5.4.1 Embankment Characteristics ......................................................................................... A.5-4 A.5.4.2 Wave Characteristics ..................................................................................................... A.5-6 A.5.4.3 Wind Setup .................................................................................................................... A.5-6 A.5.4.4 Overtopping Analysis ..................................................................................................... A.5-7 A.5.4.5 Findings and Recommendations ................................................................................. A.5-10 A.5.5 REFERENCES......................................................................................................................... A.5-11 A.6 HYDRAULIC DESIGN .................................................................................................................... A.6-1 A.6.1 INTRODUCTION ..................................................................................................................... A.6-1 A.6.2 GENERAL RESERVOIR DESIGN GUIDELINES ........................................................................... A.6-2 A.6.3 A-2 Reservoir and A-2 STA Water Control Structures ........................................................... A.6-2 A.6.3.1 Overflow Weir SW-1 ...................................................................................................... A.6-2 A.6.3.2 Gated Culvert C-1 .......................................................................................................... A.6-3 A.6.3.3 Gated Culvert C-10 ........................................................................................................ A.6-4 A.6.3.4 Gated Culvert C-9 .......................................................................................................... A.6-5 A.6.3.5 Gated Culverts C-3 and C-4 ........................................................................................... A.6-8 A.6.3.6 Gated Culverts C-5 and C-6 ........................................................................................... A.6-9 A.6.3.7 Gated Culverts C-7 and C-8 ......................................................................................... A.6-10 A.6.3.8 Un-Gated Culvert C-2 .................................................................................................. A.6-11 A.6.3.9 STA Design Storm Simulation ...................................................................................... A.6-12 A.6.4 A-2 RESERVOIR INFLOW OUTFLOW CANAL & STA 3/4 INFLOW CANAL STRUCTURES ........ A.6-13 A.6.4.1 Gated Spillway SW-2 and SW-3 ................................................................................... A.6-13 A.6.4.2 Gated Spillway SW-4 ................................................................................................... A.6-14 A.6.5 PUMP STATION P-1 .............................................................................................................. A.6-15 A.6.6 A-2 RESERVOIR INFLOW-OUTFLOW CANAL AND A-2 STA CANALS ..................................... A.6-16 A.6.6.1 A-2 Reservoir Inflow Outflow Canal ............................................................................ A.6-16 A.6.6.2 A-2 STA Distribution and Collection Canals ................................................................. A.6-18 A.6.6.3 A-2 STA Discharge Canal .............................................................................................. A.6-18 A.6.7 REFERENCES......................................................................................................................... A.6-19 A.7 SUBSURFACE CONSIDERATIONS FOR CONSTRUCTION .............................................................. A.7-1 A.7.1 Geotechnical Exploration ...................................................................................................... A.7-1 A.7.2 Stratigraphy ........................................................................................................................... A.7-3 A.7.3 Laboratory Test Results ......................................................................................................... A.7-3 A.7.4 Hydrostratigraphy.................................................................................................................. A.7-4 A.7.5 Seismicity ............................................................................................................................... A.7-4 A.7.6 Borrow ................................................................................................................................... A.7-5 A.7.7 Excavations ............................................................................................................................ A.7-5 A.7.8 Crushing/Material Processing ............................................................................................... A.7-5 A.7.9 Design Parameters................................................................................................................. A.7-6 A.7.10 Additional Geotechnical Investigations ................................................................................. A.7-6 A.8 EMBANKMENT/DAM DESIGN ..................................................................................................... A.8-1 A.8.1 General .................................................................................................................................. A.8-1 A.8.2 Conceptual Dam Embankment .............................................................................................. A.8-1 A.8.2.1 Embankment Description .............................................................................................. A.8-1 A.8.3 Design Criteria ....................................................................................................................... A.8-4 A.8.3.1 Sources .......................................................................................................................... A.8-4 Post Authorization Change Report March 2018 A-iv Appendix A Engineering Appendix A.8.3.2 Embankment Slope Stability Factors of Safety .............................................................. A.8-4 A.8.3.3 Water Levels .................................................................................................................. A.8-4 A.8.3.4 Seismic Loading ............................................................................................................. A.8-5 A.8.4 Embankment/Dam Materials ................................................................................................ A.8-5 A.8.4.1 General .......................................................................................................................... A.8-5 A.8.4.2 Subsurface Profile .......................................................................................................... A.8-5 A.8.4.3 Embankment Materials ................................................................................................. A.8-5 A.8.5 Seepage Control .................................................................................................................... A.8-8 A.8.5.1 General .......................................................................................................................... A.8-8 A.8.5.2 Seepage Model Parameters .......................................................................................... A.8-8 A.8.5.3 Embankment Seepage ................................................................................................... A.8-8 A.8.6 Stability ................................................................................................................................ A.8-23 A.8.6.1 General ........................................................................................................................ A.8-23 A.8.6.2 Material Parameters .................................................................................................... A.8-23 A.8.6.3 Embankment Slope Stability........................................................................................ A.8-23 A.8.7 Erosion Protection ............................................................................................................... A.8-38 A.8.7.1 General ........................................................................................................................ A.8-38 A.8.7.2 Roller Compacted Concrete (RCC) ............................................................................... A.8-38 A.8.8 Foundations ......................................................................................................................... A.8-38 A.8.9 Settlement ........................................................................................................................... A.8-38 A.8.9.1 Foundation Settlement ............................................................................................... A.8-38 A.8.9.2 Embankment Dam ....................................................................................................... A.8-39 A.8.10 Borrow ................................................................................................................................. A.8-39 A.8.10.1 General ........................................................................................................................ A.8-39 A.8.10.2 Embankment ............................................................................................................... A.8-39 A.8.11 Embankment Sections Evaluation ....................................................................................... A.8-40 A.8.11.1 Typical Dam Embankment Sections ............................................................................ A.8-40 A.9 RESERVOIR SEEPAGE .................................................................................................................. A.9-1 A.9.1 INTRODUCTION ..................................................................................................................... A.9-1 A.9.2 GROUNDWATER / SURFACE WATER MODEL DEVELOPMENT............................................... A.9-2 A.9.2.1 Groundwater Model Boundary ..................................................................................... A.9-2 A.9.2.2 Groundwater Model Boundary Conditions ................................................................... A.9-3 A.9.2.3 Groundwater Model Parameters .................................................................................. A.9-3 A.9.2.4 Surface Water Model Parameters ................................................................................. A.9-4 A.9.2.5 Comparison of the 3D Groundwater Model with the 2D Groundwater Models .......... A.9-4 A.9.3 Groundwater Model Simulations and Seepage Management .............................................. A.9-7 A.9.3.1 Existing Conditions Model ............................................................................................. A.9-7 A.9.3.2 Proposed Project with Passive Seepage Management ................................................. A.9-7 A.9.3.3 Proposed Project Alternatives with Active Seepage Management .............................. A.9-9 A.10 STRUCTURAL DESIGN CRITERIA ................................................................................................ A.10-1 A.10.1 APPLICABLE CODES AND STANDARDS ................................................................................. A.10-1 A.10.2 DESIGN STRESSES ................................................................................................................ A.10-1 A.10.2.1 Minimum Concrete Compressive Strength (Unconfined) ........................................... A.10-1 A.10.2.2 Reinforcing Steel .......................................................................................................... A.10-1 A.10.2.3 Structural Steel ............................................................................................................ A.10-1 A.10.2.4 Masonry ....................................................................................................................... A.10-1 A.10.3 LOADING CRITERIA .............................................................................................................. A.10-1 A.10.3.1 Dead Loads .................................................................................................................. A.10-1 Post Authorization Change Report March 2018 A-v Appendix A Engineering Appendix A.10.3.2 Live Loads, per Major Pumping Station Engineering Guidelines ................................. A.10-2 A.10.3.3 Lateral Loads ................................................................................................................ A.10-2 A.10.3.4 Snow Loads - Not Applicable ....................................................................................... A.10-3 A.10.3.5 Seismic Loads ............................................................................................................... A.10-3 A.10.3.6 Wind Loads – Pump Station ........................................................................................ A.10-3 A.10.3.7 Wind Loads – Flood Control Elements ........................................................................ A.10-3 A.10.3.8 Flood Load (Hydrostatic + Wave) ................................................................................ A.10-3 A.10.4 HYDRAULIC STRUCTURES AND PUMPING STATION SUBSTRUCTURE ................................. A.10-3 A.10.4.1 Materials of Construction ............................................................................................ A.10-3 A.10.4.2 Design Procedures and Assumptions .......................................................................... A.10-3 A.10.4.3 Design Load Cases ....................................................................................................... A.10-4 A.10.4.4 Service Water Condition .............................................................................................. A.10-5 A.10.4.5 Flood/Overflow Water Condition ................................................................................ A.10-5 A.10.4.6 Seismic Water Condition ............................................................................................. A.10-5 A.10.4.7 Service Soil Condition .................................................................................................. A.10-5 A.10.4.8 Flood Soil Condition ..................................................................................................... A.10-5 A.10.4.9 Steel Hydraulic Structures ........................................................................................... A.10-6 A.10.4.10 Overturning, Sliding and Flotation .............................................................................. A.10-6 A.10.5 BUILDING STRUCTURES ....................................................................................................... A.10-6 A.10.6 INSPECTION REQUIREMENTS .............................................................................................. A.10-6 A.10.7 BRIDGES ............................................................................................................................... A.10-6 A.11 SITE CIVIL DESIGN ..................................................................................................................... A.11-1 A.11.1 PROJECT LAYOUT ................................................................................................................. A.11-1 A.11.2 SITE ACCESS, ROADWAYS AND BRIDGES ............................................................................. A.11-1 A.11.3 STORMWATER CONTROL/SITE DRAINAGE .......................................................................... A.11-1 A.11.3.1 During Construction .................................................................................................... A.11-1 A.11.3.2 Permanent Construction ............................................................................................. A.11-2 A.11.4 UTILITIES .............................................................................................................................. A.11-2 A.11.4.1 Electric Power .............................................................................................................. A.11-2 A.12 MECHANICAL DESIGN ............................................................................................................... A.12-1 A.12.1 INTRODUCTION ................................................................................................................... A.12-1 A.12.2 PUMP STATION .................................................................................................................... A.12-1 A.12.2.1 Design Criteria ............................................................................................................. A.12-1 A.12.2.2 Equipment ................................................................................................................... A.12-4 A.12.2.3 Protection Elevation .................................................................................................... A.12-4 A.12.2.4 Connector Canal Considerations ................................................................................. A.12-5 A.12.2.5 Mechanical Arrangement Considerations ................................................................... A.12-5 A.12.2.6 System Analysis of Pump Station ................................................................................ A.12-5 A.12.2.7 Station Mechanical – Major Equipment and Auxiliary Systems .................................. A.12-9 A.12.2.8 Diesel Engine Drivers ................................................................................................. A.12-13 A.12.2.9 Speed Reducers ......................................................................................................... A.12-19 A.12.2.10 Fuel System................................................................................................................ A.12-24 A.12.2.11 Mechanically Cleaned Trash Racks ............................................................................ A.12-29 A.12.2.12 Discharge Piping and Appurtenances ........................................................................ A.12-29 A.12.2.13 Lubrication Oil System ............................................................................................... A.12-30 A.12.2.14 Vacuum Priming System ............................................................................................ A.12-31 A.12.2.15 Compressed Air System ............................................................................................. A.12-31 A.12.2.16 Backflow and Dewatering Gates and Operators ....................................................... A.12-32 Post Authorization Change Report March 2018 A-vi Appendix A Engineering Appendix A.12.2.17 Station Emergency Power ......................................................................................... A.12-32 A.12.2.18 Stage Monitors .......................................................................................................... A.12-32 A.13 ELECTRICAL DESIGN .................................................................................................................. A.13-1 A.13.1 DESIGN CRITERIA ................................................................................................................. A.13-1 A.13.1.1 Utility Power ................................................................................................................ A.13-1 A.13.1.2 Pump Station Equipment Voltage ............................................................................... A.13-1 A.13.1.3 Pump Station Power Distribution ................................................................................ A.13-1 A.13.1.4 Pump Station Switchgear ............................................................................................ A.13-3 A.13.1.5 Standby Generator Power ........................................................................................... A.13-3 A.13.1.6 Pump Station Building Systems ................................................................................... A.13-5 A.13.1.7 Valve Operators and Controls ..................................................................................... A.13-5 A.13.1.8 Gate Operators and Controls ...................................................................................... A.13-6 A.13.2 PUMP STATION ENGINEERING GUIDELINES ........................................................................ A.13-6 A.14 INSTRUMENTATION AND CONTROLS ....................................................................................... A.14-1 A.14.1 DESIGN CRITERIA ................................................................................................................. A.14-1 A.14.2 A-2 RESERVOIR, A-2 STA AND CANALS ................................................................................ A.14-1 A.14.3 WATER CONTROL FACILITIES ............................................................................................... A.14-1 A.14.4 A-2 RESERVOIR PUMP STATION .......................................................................................... A.14-2 A.14.4.1 Operation .................................................................................................................... A.14-2 A.14.4.2 Diesel Engine Driver Control and Monitoring System ................................................. A.14-2 A.14.4.3 Logic Controller (PLC) .................................................................................................. A.14-2 A.14.4.4 Display Panel ............................................................................................................... A.14-3 A.14.4.5 Converter (J1939/DF1-RS232) ..................................................................................... A.14-3 A.14.4.6 Interface Module (Modbus/RS232) ............................................................................. A.14-3 A.14.4.7 Surge Suppressor ......................................................................................................... A.14-3 A.14.4.8 Vibration Switch .......................................................................................................... A.14-3 A.14.4.9 Temperature Monitors ................................................................................................ A.14-3 A.14.4.10 Liquid Level Gage ......................................................................................................... A.14-3 A.14.4.11 Indicating Level Switches ............................................................................................. A.14-3 A.14.4.12 Monitoring Instrumentation ....................................................................................... A.14-4 A.14.4.13 Station Emergency Power ........................................................................................... A.14-4 A.14.4.14 Stage Monitors ............................................................................................................ A.14-4 A.14.5 TELEMETRY .......................................................................................................................... A.14-4 A.15 ARCHITECTURAL ....................................................................................................................... A.15-1 A.15.1 DESIGN CRITERIA ................................................................................................................. A.15-1 A.15.1.1 Introduction ................................................................................................................. A.15-1 A.15.1.2 Design Requirements .................................................................................................. A.15-1 A.15.2 EXTERIOR ARCHITECTURAL FEATURES ................................................................................ A.15-2 A.15.2.1 Shel ......................................................................................................................... A.15-2 A.15.2.2 Superstructure ............................................................................................................. A.15-2 A.15.2.3 Exterior Enclosure........................................................................................................ A.15-2 A.15.2.4 Roofing ........................................................................................................................ A.15-2 A.15.3 INTERIOR ARCHITECTURAL FEATURES ................................................................................. A.15-2 A.15.3.1 Floor ......................................................................................................................... A.15-2 A.15.3.2 Partitions ..................................................................................................................... A.15-3 A.15.3.3 Interior Doors and Windows ....................................................................................... A.15-3 A.15.3.4 Interior Finishes ........................................................................................................... A.15-3 A.15.3.5 Vertical Circulation ...................................................................................................... A.15-3 Post Authorization Change Report March 2018 A-vii Appendix A Engineering Appendix A.15.4 INTERIOR FIXTURES ............................................................................................................. A.15-4 A.15.4.1 Identifying Devices ...................................................................................................... A.15-4 A.15.4.2 Storage Fixtures ........................................................................................................... A.15-4 A.15.4.3 Accessory Fixtures ....................................................................................................... A.15-4 A.15.4.4 Interior Fixtures ........................................................................................................... A.15-4 A.16 HVAC, PLUMBING AND FIRE SUPPRESSION SYSTEMS .............................................................. A.16-1 A.16.1 DESIGN CRITERIA ................................................................................................................. A.16-1 A.16.2 HVAC .................................................................................................................................... A.16-1 A.16.2.1 Heating Systems .......................................................................................................... A.16-1 A.16.2.2 Ventilation Systems ..................................................................................................... A.16-1 A.16.2.3 Air Conditioning Systems ............................................................................................. A.16-2 A.16.3 POTABLE WATER.................................................................................................................. A.16-3 A.16.4 FRESH WATER SUPPLY SYSTEM ........................................................................................... A.16-3 A.16.5 COOLING WATER SYSTEM ................................................................................................... A.16-3 A.16.6 SANITARY SYSTEM ............................................................................................................... A.16-3 A.16.7 STORMWATER SYSTEM ....................................................................................................... A.16-3 A.16.8 FIRE SUPPRESSION SYSTEM ................................................................................................. A.16-4 A.17 ACCESS AND SECURITY ............................................................................................................. A.17-1 A.17.1 ACCESS ................................................................................................................................. A.17-1 A.17.2 SECURITY ............................................................................................................................. A.17-1 A.17.2.1 Fences and Gates ......................................................................................................... A.17-1 A.17.2.2 Site Monitoring at A-2 Reservoir Pump Station .......................................................... A.17-1 A.17.2.3 Building Access at A-2 Reservoir Pump Station ........................................................... A.17-1 A.18 EMERGENCY ACTION PLAN ...................................................................................................... A.18-1 ANNEXES A-1 – Hydraulic Design • Preliminary Conveyance Assessment for Lake Okeechobee Releases through the Miami & NNR Canals Report • Pump Station Hydraulic Calculations A-2 – Hydrologic Modeling • A-2 Reservoir Wave and Overtopping Analysis Report • EAA Storage Reservoir Project Baseline Runs Model Documentation Report • EAA Storage Reservoir Project Final Array of Alternatives Model Documentation Report • EAA Storage Reservoir Project C240 Tentatively Selected Plan Model Documentation Report B-1 – (PLACE HOLDER – NOT USED) C-1 – Civil Plates • Overall Site Plan for TSP • Earthwork Typical Sections for TSP D-1 – Mechanical Plates (Selected SFWMD Guideline Drawings) • Drawing G-G1 (1 of 4) – Cover Sheet • Drawing G-G1 (2 of 4) – Sheet Index • Drawing G-G1 (3 of 4) – Standard Abbreviations • Drawing G-G1 (4 of 4) – Design Requirements • Drawing G-S1 (1 of 2) – Water Control Struct. w/ Vert. Lift Roller Gate Section & Elevation Post Authorization Change Report March 2018 A-viii Appendix A Engineering Appendix • Drawing G-S1 (2 of 2) – Water Control Struct. w/ Vert. Lift Roller Gate Plan • Drawing G-S7 (1 of 2) – Control Building w/ Generator Plan • Drawing G-S7 (2 of 2) – Control Building w/ Generator Elevations • Drawing G-S13 (2 of 2) – Gated Box Culvert Double Barrel Arrangement G-1 – Geological Investigations • Boring Logs Referenced in Appendix A • Laboratory Data from Geotechnical Reports Referenced in Appendix A LIST OF TABLES Table A.1-1. Summary of TSP Features ................................................................................................................ A.1-1 Table A.5.2-1. Wind and Precipitation Design Conditions .................................................................................... A.5-3 Table A.5.4-1. A-2 Reservoir Wave Prediction Results .......................................................................................... A.5-6 Table A.5.4-2. Summary of Calculated Wind Setup .............................................................................................. A.5-7 Table A.5.4-3. Design Water Levels and Wave Conditions Adopted for the Overtopping Analysis ............... A.5-8 Table A.5.4-4. Results of Overtopping Analysis ...................................................................................................... A.5-9 Table A.5.4-5. Summary of Overtopping Probability and Maximum Overtopping Volume for a Single Wave (assuming 3 hr storm duration) .....................................................................................................A.5-10 Table A.6.3-1. A-2 Reservoir Gated Box Culverts Structure Geometry ............................................................... A.6-6 Table A.6.3-2. A-2 Reservoir Gated Box Culverts Simulated Flow and Stage Conditions ................................ A.6-7 Table A.6.3-3. STA Gated Box Culverts C-3 and C-4 Structure Geometry .......................................................... A.6-9 Table A.6.3-4. STA Gated Box Culverts C-3 and C-4 Simulated Flow and Stage Conditions ............................ A.6-9 Table A.6.3-5. STA Gated Box Culverts C-5 and C-6 Structure Geometry ........................................................A.6-10 Table A.6.3-6 STA Gated Box Culverts C-5 and C-6 Simulated Flow and Stage Conditions ..........................A.6-10 Table A.6.3-7. STA Gated Box Culverts C-7 and C-8 Structure Geometry ........................................................A.6-11 Table A.6.3-8. STA Gated Box Culverts C-7 and C-8 Simulated Flow and Stage Conditions ..........................A.6-11 Table A.6.3-9. STA Un-Gated Box Culverts C-2 Structure Geometry ................................................................A.6-12 Table A.6.3-10. STA Un-Gated Box Culverts C-2 Simulated Flow and Stage Conditions ..................................A.6-12 Table A.6.4-1. Gated Spillways SW-2 and SW-3 Structure Geometry ..............................................................A.6-14 Table A.6.4-2. Gated Spillways SW-2 and SW-3 Simulated Flow and Stage Conditions ................................A.6-14 Table A.6.4-3. Gated Spillway SW-4 Structure Geometry ..................................................................................A.6-15 Table A.6.4-4. Gated Spillway SW-4 Simulated Flow and Stage Conditions ....................................................A.6-15 Table A.6.6-1. A-2 Reservoir Inflow Outflow-Canal Calculated Flow Capacity ................................................A.6-16 Table A.6.6-2. A-2 STA Distribution and Collection Canals Calculated Flow Capacity ....................................A.6-18 Table A.6.6-3. A-2 STA Discharge Canal Calculated Flow Capacity ....................................................................A.6-18 Table A.8.4-1. Availability of Construction Materials ............................................................................................ A.8-5 Table A.8.5-1. Seepage and Stability Analysis Parameters ................................................................................... A.8-8 Table A.8.5-2. Factors of Safety against Soil Heave/Piping ................................................................................... A.8-9 Table A.8.5-3. Computed Seepage from the Reservoir ........................................................................................ A.8-9 Table A.8.6-1. Results of Stability Analysis for Cross Section K(L) ......................................................................A.8-37 Table A.8.6-2. Results of Stability Analysis for Cross Section F(L).......................................................................A.8-37 Table A.8.6-3. Results of Stability Analysis for Cross Section J-1(L). ...................................................................A.8-37 Table A.8.6-4. Results of Stability Analysis for Cross Section L(L) .......................................................................A.8-38 Table A.9.2-1. Groundwater Model Parameters ................................................................................................... A.9-3 Post Authorization Change Report March 2018 A-ix Appendix A Engineering Appendix Table A.9.2-2. Groundwater Model Parameters ................................................................................................... A.9-4 Table A.9.2-3. Comparison of Seepage Rates between 2D and 3D Models ...................................................... A.9-5 Table A.9.3-1. Simulated Fluxes out of the External Boundary in Existing and Proposed Conditions ............ A.9-7 Table A.9.3-2. Simulated Seepage Flow Rates for Seepage Flow Out of Impoundments for Proposed Project with Passive Seepage Management .............................................................................................. A.9-9 Table A.9.3-3. Proposed Project Alternatives for Active Seepage Management ............................................A.9-10 Table A.9.3-4. Simulated Seepage Flows in Proposed Project Alternatives Evaluated ..................................A.9-10 Table A.10.4-1. Overturning, Sliding, and Flotation Factors .................................................................................A.10-6 Table A.11-1. A-2 Reservoir Stage-Storage ..........................................................................................................A.11-1 Table A.12.2-1. Pump Station Canal and Reservoir Conditions ...........................................................................A.12-9 Table A.12.2-2. Pump Static Head ............................................................................................................................A.12-9 Table A.12.2-3. Fitting Friction Factors (K) ...............................................................................................................A.12-9 Table A.12.2-4. Friction Losses at Maximum Capacity ....................................................................................... A.12-10 Table A.12.2-5. Pump Design Capacity at Rated Conditions (Running) ........................................................... A.12-10 Table A.12.2-6. Pump Design Capacity at Rated Conditions (Starting) ............................................................ A.12-11 Table A.12.2-7. Pump Material Specifications ..................................................................................................... A.12-16 Table A.12.2-8. Pipe Wall Thickness ...................................................................................................................... A.12-33 Table A.15.1-1. Exceptions to the Building Service Life Span ...............................................................................A.15-1 Table A.16.1-1. Project Site Design Criteria .............................................................................................................A.16-1 Table A.16.2-1. Indoor Design Criteria for Project .................................................................................................A.16-2 LIST OF FIGURES Figure A.1-1. Overall Site Plan of TSP ..................................................................................................................... A.1-5 Figure A.5.4-1 Typical Cross Section for the A-2 Reservoir ................................................................................... A.5-5 Figure A.6.1-1. EAA Reservoir Schematic ................................................................................................................. A.6-1 Figure A.6.3-1. Simulated Flow and Headwater Stage at S-1 for Weir Lengths 13.5 and 15.2 Feet ................ A.6-3 Figure A.6.3-2. STA Simulated Stages During 100-Year Design Storm ...............................................................A.6-13 Figure A.6.6-1. Simulated Stages in the A-2 Inflow-Outflow Canal During Maximum Pumping at P-1 ........A.6-17 Figure A.6.6-2. Simulated Flows (cfs) in the A-2 Inflow-Outflow Canal for P-1 Location at mile 4.6 .............A.6-17 Figure A.6.6-3. Simulated Flows (cfs) in the A-2 Inflow-Outflow Canal for P-1 Location at mile 6.2 .............A.6-17 Figure A.6.6-4. Simulated Flows (cfs) in the A-2 Inflow-Outflow Canal for P-1 Location at mile 9.6 .............A.6-18 Figure A.7.1-1. Boring Locations ................................................................................................................................ A.7-2 Figure A.8.2-1. Location of Typical Cross Sections .................................................................................................. A.8-2 Figure A.8.2-2. Typical Dam Embankment Section - Cross Section K(L) .............................................................. A.8-3 Figure A.8.4-1. Location of Soil Profile across A-1 and A-2 Sites ........................................................................... A.8-7 Figure A.8.5-1. Steady State Seepage with Normal Pool - Cross Section K(L) ...................................................A.8-11 Figure A.8.5-2. Steady Seepage with Water Level at Surcharge Pool - Cross Section K(L) ..............................A.8-11 Figure A.8.5-3. Critical Section for Rapid Drawdown - Cross Section K(L)..........................................................A.8-13 Figure A.8.5-4. Steady State Seepage with Normal Pool - Cross Section F(L) ...................................................A.8-13 Figure A.8.5-5. Steady Seepage with Water Level at Surcharge Pool - Cross Section F(L) ..............................A.8-15 Figure A.8.5-7. Steady State Seepage with Normal Pool - Cross Section J-1(L) .................................................A.8-17 Figure A.8.5-8. Steady Seepage with Water Level at Surcharge Pool - Cross Section J-1(L)............................A.8-17 Post Authorization Change Report March 2018 A-x