FLOOD05699

• County: Jefferson
• Community: Idledale, Morrison, Tinytown
• Stream Name: Sawmill Gulch, Bear Creek, Mt. Vernon Creek
• Basin: South Platte
• Title: Flood Hazard Area Delineation
• Date: 12/1/1981
• Prepared For: Jefferson County
• Prepared By: UDFCD
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

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TABLE OF CONTENTS

Title

PREFACE.

Authorization.
Purpose and Scope.
Acknowledgements .
STUDY AREA DESCRIPTION
FLOOD HISTORY. . . . .
FACTORS AFFECTING FLOOD HAZARD

Factors Which Increase the Flood Hazard.
Factors Which Reduce the Flood Hazard.

RELATED FLOOD STUDIES. . . . .
HYDROLOGIC AND HYDRAULIC DETERMINATIONS.

Hydrologic Analysis.
Hydraulic Analysis
FUTURE FLOODS. . . .

Flood Frequency and Discharge.
Flooded Areas and Floodway Delineation
Flood Velocities

SUMMARY. .
REFERENCES

LIST OF FIGURES

Figure 1
Figure 2

Basin Boundary Map

100-Year Discharge Profiles - Bear Creek and
Mt. Vernon Creek

100-Year Discharge Profiles - Turkey Creek and

Parma lee Gulch

100-Year Discharge Profiles - Deer Creek and
Sawmill Gulch

Figure 3 -

Figure 4 -

LIST OF TABLES

Flood Plain and Floodway Ref~'O.~ata:

Page
1
1
1
1
2
3
4
4
5
5
5
5
6
7
7
7
9
9
10

Table 1 Sawmill Gulch and Bear Creek at Idledale
Table 2 Bear Creek at Morrison
Table 3 Mount Vernon Creek
Table 4 Turkey Creek
Table 5 Parmalee Gulch (1)
Table 6 Parma lee Gulch (2)
Table 7 Deer Creek

LIST OF SHEETS

Sheet 1 Sheet Index
Flood Hazard Area Delineation Maps:

Shee t s 2-3 Bear Creek at Idledale
Sheets 4-6 Bear Creek at Morrison
Sheets 7-11 Mount Vernon Creek
Sheets 12-14 Sawmill Gulch
Sheets 15-17 Turkey Creek at Tiny Town
Sheets 18-21 Turkey Creek Upstream Bear Creek Reservoir
Sheets 22-27 Parma lee Gulch
Sheets 28-34 Deer Creek
Sheets 35-36 Bridge Sections