FLOOD08330

• County: Gilpin
• Community: Central City
• Stream Name: Gregory Gulch, Nevada Gulch
• Basin: South Platte
• Title: Flood Hazard Identification Report - Gregory Eureka Gulch and Nevada Gulch
• Date: 2/1/1987
• Prepared For: Central City
• Prepared By: CWCB
• Floodplain - Doc Type: Floodplain Report/Masterplan

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TABLE OF CONTENTS

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Preface. . .. . . .. . . . . . . . . . . . . . . . . . . .. . . . . . .. . . .. . . . . .. .. .. .. . i i i

Introduction

Authorization........ ........ ..........................1
Purpose and Scope...................................... 1

Acknowledgements....................................., .2
Related Flood Studies..................................2

Study Area Description
Drainage Basin Characteristics.........................3

Study Reach Description................................3

Hydrologic and Hydraulic Determinations

Flood History..........................................4
Flood Characteristics............. .................. ...4
Hydrologic Ana1ysis....................................4
Hydraulic Ana1ysis.....................................6
Flooded Areas...................................,...... 7

Interpretation and Use of Report Data
Flood Frequency and Discharge..........................8

Flood E1evations.......................................8
Flood Insurance........................................8

Recommendations........................................... .11

Bib 1 iography. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

EXHIBIT 1 - Letter of request from the City of Central

EXHIBIT 2 - Existing Flood Hazard Boundary Map for Central City
EXHIBIT 3 - NFIP Rate Information