Orestimba Creek Feasibility Study - Stanislaus County

Economics Appendix – Draft Report - Orestimba Creek Feasibility Study, Stanislaus County, California – September 2012
ORESTIMBA CREEK PROJECT, CALIFORNIA
FEASIBILITY STUDY AND REPORT
ECONOMICS APPENDIX
APPENDIX E
Draft Report
August 2012
TABLE OF CONTENTS
Executive Summary – Economics – Orestimba Creek Feasibility Study ..................... i
ES.1
ES.2
ES.3
ES.4
ES.5
ES.6
ES.7
ES.8
Overview .............................................................................................................. i
Purpose and Scope of Economic Analysis........................................................... i
Structural Inventory ........................................................................................... iii
Without Project Damages .................................................................................. vi
With-Project Damages and Benefits ................................................................ viii
Project Performance ......................................................................................... xiii
Net Benefit Analysis ........................................................................................ xiv
Conclusions ...................................................................................................... xvi
1.0 Introduction ........................................................................................................... 1
1.1 Purpose and Scope ............................................................................................ 1
1.2 Study Area ......................................................................................................... 1
1.3 History of Flooding ........................................................................................... 1
1.4 Methodology (References and Methods Cited) .............................................. 3
2.0 Flood Plain Area and Inventory .......................................................................... 4
2.1 Economic Impact Areas ................................................................................... 4
2.2 Inventory of Structures and Property in Study Area .................................... 5
2.3 Value of Damageable Property- Structure Value .......................................... 9
2.4 Value of Damageable Property- Content Value ............................................. 9
3.0 Depth-Damage Relationships and Flooding Characteristics .......................... 13
3.1 Determining Flood Depths ............................................................................. 13
3.2 Depth-Damage Relationships ......................................................................... 13
i