Stevens Creek Trunk Sewer Preliminary Design Report

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Volume I

Cover Page (22 K)

Table of Contents (32 K)

Chapter 1 - Introduction (140 K)

1.1 Existing Conditions

• 1.1.1 Existing Collection System
• 1.1.2 Community Growth

1.2 Autorization for Work

1.3 Previous Planning

1.4 Public Involvement

• 1.4.1 Public Meetings
• 1.4.2 Newsletters and Fact Sheets
• 1.4.3 Web Site
• 1.4.4 City Contact

Chapter 2 - Stevens Creek Basin (571 K)

2.1 General Location

2.2 Basin Areas

• 2.2.1 Main Basin
• 2.2.2 Subbasin Areas
• 2.2.3 Modified Subbasin Areas

2.3 Phased Implementation

• 2.3.1 General
• 2.3.2 West Side of Stevens Creek
• 2.3.3 East Side of Stevens Creek

Chapter 3 - Preliminary Analysis (284 K)

3.1 General

3.2 Hydraulics

• 3.2.1 Peak flow
• 3.2.2 Manning's Equation
• 3.2.3 Pipe Size
• 3.2.4 Pipeline Velocity
• 3.2.5 Depth of Flow (d/D)
• 3.2.6 Structures

3.3 Hydraulic Modeling

• 3.3.1 Methodology
• 3.3.2 SewerCAD
• 3.3.3 XP SWMM
• 3.3.4 EXTRAN
• 3.3.5 Subbasin Flows
• 3.3.6 Trunk Sewer Modeling
• 3.3.7 Subbasin E-2 Sewer Model

3.4 Alternative Alignment Evaluation

• 3.4.1 Evaluation Criteria
• 3.4.2 Alternative Alignment Analysis

Chapter 4 - Recommended Trunk Sewer (4.9 K)

4.1 Recommended Alignment

4.2 Hydraulic Modeling

4.3 Summary of Service Area

• 4.3.1 Recommended Trunk Sewer
• 4.3.2 Future Eastside Service (Tier III)
• 4.3.3 Regent Heights Sewer

4.4 Right of Way Requirements

• 4.4.1 Permanent Easement
• 4.4.2 Temporary Easement

4.5 Preliminary Design

• 4.5.1 Aerial Mapping
• 4.5.2 Plan and Profile Drawings

4.6 Probable Opinion of Estimated Costs

• 4.6.1 Methodology
• 4.6.2 Assumptions and Allowances
• 4.6.3 Probable Opinion of Estimated Costs

4.7 Implementation Plan

• 4.7.1 General
• 4.7.2 Base Plan
• 4.7.3 Accelerated Plan

4.8 Recommended Pipe Materials

4.9 Other Construction Issues

• 4.9.1 Highways, Roads, Streets, and Railroads
• 4.9.2 Farmland, Wetlands, and Grasslands
• 4.9.3 Stream Crossings

Appendix A - Technical Memorandum No. 1 - Design Flow Equation (85 K)

Appendix B - Technical Memorandum No. 2 - Structures (296 K)

Appendix C - Technical Memorandum No. 3 - Hydraulics and Preliminary Modeling (2.1 M)

Appendix D - Technical Memorandum No. 4 - Preliminary Alternative Alignments (4.86 M)

Appendix E - Technical Memorandum No. 5. - Pipe Material Selection (202 K)

Appendix F - Hydraulic Modeling Output for the Recommended Alignment (241 K)

Appendix G - Probable Opinion of Estimated Costs for the Recommended Alignment (642 K)