Table of Contents

1.0 INTRODUCTION

1.1 Site Description

1.2 Engineering Data

1.2.1 Drainage Area

1.2.2 Reservoir

1.2.2.1 Dimensions (feet)

1.2.2.2 Storage (acre-feet)

1.2.2.3 Surface (acres)

1.2.2.4 Additional Elevations (feet)

1.2.2.5 Main Spillway

1.3 Regulatory Classifications

1.3.1 Size Classification

1.3.2 Hazard Classification

2.0 VISUAL INSPECTION

2.1 General Findings

2.2 Dam

2.3 Emergency Spillway

2.4 Concrete Outlet Structure

2.5 Low-Level Outlet Pipe

2.6 Reservoir Depth

3.0 SPILLWAY DESIGN FLOOD ANALYSIS

3.1 Introduction

3.2 HEC-1 Analysis

3.2.1 General

3.2.2 Inputs

3.2.3 Results

3.2.4 Discussion of the Results

3.2.5 Spillway Modifications

4.0 INFLOW DESIGN FLOOD ANALYSIS

4.1 Introduction

4.2 Inputs

4.3 Results

5.0 DISCUSSION

5.1 General

5.2 Geotechnical Issues

5.2.1 Spillway Modification

5.2.2 Seepage Control

5.2.3 Slope Stability

5.3 Structural Issues

5.4 Recreational Issues

5.4.1 Beach Area

5.4.2 Top of Dam

5.5 Design Options

5.5.1 Option No. 1: Do Nothing

5.5.2 Option No. 2: Comply with MADEM Requirements

5.5.3 Option No. 3: Modify Dam (Limited Repairs) with Operation & Maintenance

Plan

5.5.4 Option No. 4: Isolate Swimming Area and Reduce Design Requirement

6.0 CONCLUSIONS AND RECOMMENDATIONS

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