FLOOD06537

• Designation Number: 116
• County: Weld
• Community: Nunn
• Basin: South Platte
• Title: FIS - Nunn
• Date: 8/1/1978
• Designation Date: 11/1/1978
• Floodplain - Doc Type: Floodplain Report/Masterplan

TABLE OF CONTENTS

1.0 INTRODUCTION............ . . _ . . . . . . . . . . . . _ . . . . . . . - . . . - . . . . . . . . . . . . 1

Page

1.1
1.2
1.3

Purpose of Study...........................................
Coordination.. . . .. .. . . .. .. . . .. . . . . .. ... .. . . . . . . . . . . . .. .. ...
Authority and Acknowledgments. .............................

1
1
1

2.0 AREA STUDIED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.1
2.2
2.3
2.4

Scope of Study.... _ . . . . . . . . - . . - . . . . . . . . . - . - . - - - . . . . . . . . . . . .
Cornrnunity Description......... ............ .. ...... ...... ...
Principal Flood Problems.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flood Protection Measures. .......... .......................

1
3
3
4

3.0 ENGINEERING ~1ETHODS.. _ . . . . . . . _ _ . . _ . _ . . . . . . . _ _ . . . . . . _ . . . . . . . . . . . . 4

3.1 Hydrologic Analyses. .... ...... ........ ..................... 4
3.2 Hydraulic Analyses _. .. .. .. .. .. .., . .. .. .. . . .. . _ _. .. . . . . .. . .. 5

4.0 FLOOD PLAIN MANAGEMENT APPLICATIONS...___........ .... .__ ______.. 5

4.1
4.2

Flood Boundaries........ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floodways. . . . . . . . . . . . . _ . . . . . . . . . . . . - - . . . . . . . . . . . . . . . . - . . . . .

6
6

5.0 INSURANCE APPLICATION.. . . . . . . . . . . . . . . _ . . _ . . . . . . . _ . . . . . . _ . _ . . . . . . 7

5.1
5.2
5.3
5.4

Reach Determinations.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flood Hazard Factors............ _ _ _ . . . . . . . - . . . - . . . . . - . . . . . .
Flood Insurance Zones......................................
Flood Insurance Rate Map Description.................... ...

9
9
9
10

6.0 OTHER STUDIES. . .. .. . ... ... .. . .. . ... .... .. .... .. .. . . .. .. .. .. .. . .. 10

7.0 LOCATION OF DATA......................... . . . . . . . . . . . . . . . . . . . . . . . 12

8.0 BIBLIOGRAPHY AND REFERENCES.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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