FLOOD00704

• Designation Number: 188
• County: Lake
• Community: Unincorporated Lake County
• Stream Name: Arkansas River, Lake Creek, Evans Gulch
• Title: Floodplain Information Report - Arkansas River, Lake Creek, Evans Gulch
• Date: 11/1/1981
• Designation Date: 4/1/1982
• Floodplain - Doc Type: Floodplain Report/Masterplan

Item

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III.

IV,

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VI,

1. Photograph of the Arkansas River at Station 357+00
2. Photograph of the Arkansas River at Station 324+00
3. Phot0graph of Lake Cre<<k at Station 210+00
4. Photograph of Lake Creek at Station 192+00
5. Photograph of Lincoln Gulch, tributary to Evans Gulch
6. Photograph of Evans Gulch at Station 90+50
7. Discharge-Frequency Curves at Downstream Study LilT,its
8. flischarge Profile for the Arkansas River
9. Discharge Profile for Lake Creek
10. t'ischarge Pr':lfile for Evans Gulch

TABLE OF CONTENTS

Paoe

1.
2,
3,
4,
5,
6,
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8,
9,
10,
11,
12,
13,

Preface

i

Acknowledgements

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List of Tablos

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List of Fiquro:>s

i,

Introduction

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A. Purpose and Scope
B. Authorization
C. Mapping and Surveys
D. Related Flood Studies

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2
3
4
4
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11

Study Area Description

A. Drainaqe Basin Characteristics
B. Study Reach Description
C. Flood Characteristics

History of Flooding

12

Floodplain Management Concepts

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A. FreqUQncy and Discharge
B. FlOOd Elevations
C. .'looded Areas
D. Flood Insurance

>5
16
16
"

Hydrologic Analysis

20

Hydraulic Analysis

28
32
35

Glossary

R..Cerences

Pl<ltes

iii

LIST OF TABLES

Drains,ge Areas
Historical Pea'~ Discharges - Arkansas River
Historical Peak DiRchaq;es - Lake Creek
Reference J'lonuments Arkansas River
Ref",renc., Monuments - Lake Creek
R"ference Monuments - Evans Gulcl1
FloOG Insurance Rates
Arkansas River Discharge Data
Lake Creek Discharge Data
Evans Gulch Discl111rge Data
Flood Frequency-Elevation and
Flood FrequencYAElevation and
Flood Frequency-Elevation and

Arkansas River
Lake Cr<<ek
Evans Gulch

Discharge
Discharge
Discharge

Data,
Data,
Data,

LIST OF FIGURES

iv