INTERIOR FLOOD HYDROLOGY
Chapter 1. Introduction - ETL-1110-2-3670005
Figure 1-2. Cross section of typical interior system
Program Documentation
Chapter 2. Analysis Concepts and Procedures for Interior Areas
Initial Preparation
Table 2-1. Assessment of Coincidence
Figure 2-1. Continuous simulation analysis concepts
Summary - ETL-1110-2-3670012
Figure 2-3. Coincident frequency analysis concepts
Figure 2-4. Coincident frequency procedures
Chapter 3. HEC-IFH Program Concepts and Applications
Figure 3-1. HEC-IFH program menu hierarchy
Figure 3-2. Study ID and descriptions
Define Interior Analysis Data
Figure 3-5. HEC-IFH data entry menu
Figure 3-6. Source of climatological data
Figure 3-7. CSA precipitation data entry
Figure 3-9. Hypothetical frequency storm hyetograph
Streamflow routing.
Figure 3-12. Unit hydrograph plot
Figure 3-14. Modified Puls storage-outflow plot
Figure 3-15. Ponding surface area data entry screen
Figure 3-17. Data entry screen for culvert computations
PUMP module.
Figure 3-20. Main river transfer concept: slope-profile
Interior Analysis
Interior analysis computation sequence.
Analytical Procedures
Analysis Summaries
Figure 3-24. Menu of continuous simulation hydrologic analysis summaries
Figure 3-25. Menu of hypothetical event hydrologic analysis summaries
Figure 3-27. Hypothetical event plan comparison summary menu
Chapter 4. Line-of-Protection and Minimum Facility Analysis Concepts
Figure 4-1. Without line-of-protection flooding
Minimum Facility Analysis - ETL-1110-2-3670039
Figure 4-2. Line-of-protection without minimum facility
Figure 4-3. Line-of-protection with minimum facility
Minimum facility sizing analyses.
Chapter 5. Analysis of Interior System Flood Damage Reduction Measures
Figure 5-1. Interior system with gravity outlets and pumps
Flood Damage Reduction Measures
Pump stations.
Figure 5-3. Pump station concepts
Detention areas adjacent to line-of-protection
Measures that manage future development.
Interior Analysis Using HEC-IFH
Figure 5-4. Plan comparison of stage-frequency relationships
Economic analysis of pumping station plans.
Figure 5-5. Pump station benefit-cost curve
Plan Performance
Figure 5-7. Hypothetical event plan comparison summary menu
Figure 5-9. Maximum interior elevation-frequency plot
Chapter 6. Study Documentation
Appendix A. References - ETL-1110-2-3670058
Appendix A. References (cont)
Appendix B. Glossary of Terms
Interception systems
Upper interior subbasin
Appendix C. Hydrologic Engineering Management Plans for Analysis of Interior Flood Damage Reduction Measures, Napa, California
Preliminary Investigations - ETL-1110-2-3670064
Data/Information Assembly
Interior ponding area data.
Local runoff flooding without line-of-protection
Evaluate range of minimum facilities.
Develop without-project condition stage-frequency
Formulation and Comparison of Interior Flood Damage Reduction Plans
Determine economic optimal pumping capacity.
Technology Transfer
Figure C-1. HEMP for Napa, CA
Figure C-1. HEMP for Napa, CA (cont)
Appendix D. Case Study for Analysis of Interior Flood Damage Reduction Measures, Napa River, Napa, California
Figure D-1. Napa River basin
Figure D-2. Interior area composite historical precipitation data
Figure D-3. Interior area hypothetical precipitation data
Figure D-4. Napa Interior Area 5
Figure D-5. Precipitation, loss and loss percent for Interior Area 5 - CSA
Figure D-7. Runoff parameters - Interior Area 5, lower subbasin, CSA
Figure D-8. Interior pond elevation-area-storage relationship for Interior Area 5
Existing and proposed storm sewer design and configuration
Additional existing outlets.
Figure D-11. Typical layout - new box culvert with drop inlet Area 5
Figure D-13. Pumping station data for Interior Area 5
Without-project Conditions Analysis for Minimum Facility Evaluation
Minimum Facility Analysis - ETL-1110-2-3670088
Figure D-17. Stage-frequency for minimum facility - Interior Area 5 - HEA, unblocked
Figure D-19. Interior and exterior elevation - February 1986, CSA
Figure D-20. Interior and exterior stages - January 1973 event, CSA
Stage-Frequency for Interior Flood Damage Reduction Plans
Figure D-23. Stage-frequency relationships for a range of gravity outlet sizes
Figure D-25. Stage-frequency relationships for evaluating pumping capacity
Appendix E. Case Study for Interior Flood Damage Reduction Measures, Valley Park, Missouri
Table E-1. Interior Unit Hydrograph Parameters
Figure E-1. Schematic of Valley Park interior hydrology project
Interior storage areas.
Minimum Facility
Figure E-3. Tributary rating table
Table E-6. CSA Interior Analysis Summary (Minimum Facility)
Graphical Displays
Figure E-6. Maximum interior elevations for study plans
Figure E-8. Monthly interior elevations for glass plant basin
Figure E-11. Maximum annual gravity outflow
Figure E-12. Maximum annual interior area flooded
ETL 1110-2-367
Chapter 1. Introduction - ETL-1110-2-3670005
Figure 1-2. Cross section of typical interior system
Program Documentation
Chapter 2. Analysis Concepts and Procedures for Interior Areas
Initial Preparation
Table 2-1. Assessment of Coincidence
Figure 2-1. Continuous simulation analysis concepts
Summary - ETL-1110-2-3670012
Figure 2-3. Coincident frequency analysis concepts
Figure 2-4. Coincident frequency procedures
Chapter 3. HEC-IFH Program Concepts and Applications
Figure 3-1. HEC-IFH program menu hierarchy
Figure 3-2. Study ID and descriptions
Define Interior Analysis Data
Figure 3-5. HEC-IFH data entry menu
Figure 3-6. Source of climatological data
Figure 3-7. CSA precipitation data entry
Figure 3-9. Hypothetical frequency storm hyetograph
Streamflow routing.
Figure 3-12. Unit hydrograph plot
Figure 3-14. Modified Puls storage-outflow plot
Figure 3-15. Ponding surface area data entry screen
Figure 3-17. Data entry screen for culvert computations
PUMP module.
Figure 3-20. Main river transfer concept: slope-profile
Interior Analysis
Interior analysis computation sequence.
Analytical Procedures
Analysis Summaries
Figure 3-24. Menu of continuous simulation hydrologic analysis summaries
Figure 3-25. Menu of hypothetical event hydrologic analysis summaries
Figure 3-27. Hypothetical event plan comparison summary menu
Chapter 4. Line-of-Protection and Minimum Facility Analysis Concepts
Figure 4-1. Without line-of-protection flooding
Minimum Facility Analysis - ETL-1110-2-3670039
Figure 4-2. Line-of-protection without minimum facility
Figure 4-3. Line-of-protection with minimum facility
Minimum facility sizing analyses.
Chapter 5. Analysis of Interior System Flood Damage Reduction Measures
Figure 5-1. Interior system with gravity outlets and pumps
Flood Damage Reduction Measures
Pump stations.
Figure 5-3. Pump station concepts
Detention areas adjacent to line-of-protection
Measures that manage future development.
Interior Analysis Using HEC-IFH
Figure 5-4. Plan comparison of stage-frequency relationships
Economic analysis of pumping station plans.
Figure 5-5. Pump station benefit-cost curve
Plan Performance
Figure 5-7. Hypothetical event plan comparison summary menu
Figure 5-9. Maximum interior elevation-frequency plot
Chapter 6. Study Documentation
Appendix A. References - ETL-1110-2-3670058
Appendix A. References (cont)
Appendix B. Glossary of Terms
Interception systems
Upper interior subbasin
Appendix C. Hydrologic Engineering Management Plans for Analysis of Interior Flood Damage Reduction Measures, Napa, California
Preliminary Investigations - ETL-1110-2-3670064
Data/Information Assembly
Interior ponding area data.
Local runoff flooding without line-of-protection
Evaluate range of minimum facilities.
Develop without-project condition stage-frequency
Formulation and Comparison of Interior Flood Damage Reduction Plans
Determine economic optimal pumping capacity.
Technology Transfer
Figure C-1. HEMP for Napa, CA
Figure C-1. HEMP for Napa, CA (cont)
Appendix D. Case Study for Analysis of Interior Flood Damage Reduction Measures, Napa River, Napa, California
Figure D-1. Napa River basin
Figure D-2. Interior area composite historical precipitation data
Figure D-3. Interior area hypothetical precipitation data
Figure D-4. Napa Interior Area 5
Figure D-5. Precipitation, loss and loss percent for Interior Area 5 - CSA
Figure D-7. Runoff parameters - Interior Area 5, lower subbasin, CSA
Figure D-8. Interior pond elevation-area-storage relationship for Interior Area 5
Existing and proposed storm sewer design and configuration
Additional existing outlets.
Figure D-11. Typical layout - new box culvert with drop inlet Area 5
Figure D-13. Pumping station data for Interior Area 5
Without-project Conditions Analysis for Minimum Facility Evaluation
Minimum Facility Analysis - ETL-1110-2-3670088
Figure D-17. Stage-frequency for minimum facility - Interior Area 5 - HEA, unblocked
Figure D-19. Interior and exterior elevation - February 1986, CSA
Figure D-20. Interior and exterior stages - January 1973 event, CSA
Stage-Frequency for Interior Flood Damage Reduction Plans
Figure D-23. Stage-frequency relationships for a range of gravity outlet sizes
Figure D-25. Stage-frequency relationships for evaluating pumping capacity
Appendix E. Case Study for Interior Flood Damage Reduction Measures, Valley Park, Missouri
Table E-1. Interior Unit Hydrograph Parameters
Figure E-1. Schematic of Valley Park interior hydrology project
Interior storage areas.
Minimum Facility
Figure E-3. Tributary rating table
Table E-6. CSA Interior Analysis Summary (Minimum Facility)
Graphical Displays
Figure E-6. Maximum interior elevations for study plans
Figure E-8. Monthly interior elevations for glass plant basin
Figure E-11. Maximum annual gravity outflow
Figure E-12. Maximum annual interior area flooded
ETL 1110-2-367
