FLOOD05988

• Designation Number: 311
• County: Arapahoe
• Community: Aurora
• Stream Name: Granby and Sable Drainageways
• Basin: South Platte
• Title: Flood Hazard Area Delineation - Granby and Sable Drainageways
• Date: 9/1/1990
• Designation Date: 1/1/1991
• Floodplain - Doc Type: Floodplain Report/Masterplan

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TABLE OF CONTENTS

LIST OF TABLES

LIST OF FIGURES

1.

AUTHORIZATION

II. PURPOSE AND SCOPE

Acknowledqements .

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III. STUDY AREA DESCRIPTION

Sable Drainageway
Granby Drainageway
Flood History . .
Flood Related Studies

IV. SUMMARY OF HYDROLOGY

1.
2.
3.
4.

Design Rainfall . . . . .
Drainage Basin Parameters
Channel Routing. . ., .
Flood Flows and Design Hydroqraphs

V. SUMMARY OF HYDRAULIC ANALYSIS

Hydraul ics . . . . .
Channel and Floodplain

VI.

FLOOD HAZARDS

Floodplain and Floodway Data

VII. SUMMARY

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VIII.REFERENCES

Paqe

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APPENDIX - Selected Channel and Floodplain Sections

DRAWINGS

Table 1.
Table ')
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Table 3 .
Table 4.
Table 5.
Table 6.
Table 7 .

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LIST OF TABLES

Page

Design Rainfall . . . . . . . . . . .

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Summary of Drainage Basin Parameters

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Land Use and Percent Imperviousness

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Summary of Discharges . . . . . .
Floodplain and Floodway Reference Data -
Granby Drainageway . . . . . . . . . . . . .
Floodplain and Floodway Reference Data -
Sable Drainageway . . . . . . . . . . . . . . .
Floodplain and Floodway Reference Data -
Sable Overflow . . . . . . . . . . . . . . . .

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