American River Watershed Investigation, California. Volume 4. Appendix N

Abstract

The following chapters present the designs and cost estimates used for the American River Watershed Investigation feasibility report. Because the components of the proposed alternatives and the final selected plan are very different, this appendix is divided into chapters which address the different components. Chapter 1 presents the analysis used for the levee components, Chapter 2 presents the design for a pump station on the Natomas East Main Drainage Canal (done by A/E contract), Chapter 3 presents the analysis for the dam portion, and Chapter 4 is the cost estimate for the final selected plan. Each chapter first describes the alternatives used in determining the National Economic Development (NED) plan. Costs developed for these alternatives are presented in the individual chapters. These initial alternative designs and costs are not M-CACES level designs or costs. They are designs and costs adequate to give enough information to be used for identification of the NED plan. After the NED plan was identified, this information along with other information was used to determine the selected plan. The selected plan was then analyzed using an M-CACES approach. This involved additional detailed design and a more thorough approach to the cost estimate using an M-CACES analysis. This additional analysis for the selected plan along with guidance from the Feasibility Resolution Conference, the Technical Resolution Conference, and the Project Guidance Memorandum resulted in design differences between the alternatives analyzed and the selected plan. The selected plan is described at the end of each chapter. Differences between the alternatives analyzed and the selected plan are described there. Chapter 4 gives the M-CACES cost estimate for the selected plan.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1991
Accession Number
ADA436968

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  • Sacramento District, U.S. Army Corps of Engineers

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