FLOOD02760

• Designation Number: 540
• County: El Paso
• Community: Unincorporated El Paso County
• Basin: Arkansas
• Title: Flood Insurance Study - El Paso County, Colorado & Incorporated Areas - Volume I of IV
• Date: 8/1/1999
• Designation Date: 1/1/2001
• Floodplain - Doc Type: Floodplain Report/Masterplan

TABLE OF CONTENTS

Volume 1

Page

1.0

INTRODUCTION . . . . .

.

LI
1.2
1.3

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

I

. . . . . . . . .. I
2

2.0

AREA STIIDIRD .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2

2. I Scope of Study. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2
2.2 Community Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
2.3 Principal Flood Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Flood Protection Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.0 ENGINEERING METHODS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3. ] Hydrologic Analyses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ] 9
3.2 Hydraulic Analyses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.0 FLOODPLAIN MANAGEMENT APPLICATIONS .... . . . . . . . . . . . . . . . . . . . . . . 35

4. ]
4.2

Floodplain Boundaries
Floodways .. ........

. . . . . . . . . . . . . . . . . . . . . . . . . . 35
. . . . . . . . . . . . . . . . . . . . . . . . . 36

5.0

INSURANCE APPLICATION.

. . . . . . . . 125

6.0 FLOOD INSURANCE RATE MAP .................................... ]26

.

7.0 OTHER STUDIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128

.

8.0

LOCATION OF DATA ..

................... ........ 1~

9.0 BmLIOGRAPHY AND REFERENCES .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ]30