FLOOD02248

• County: Clear Creek
• Community: Georgetown
• Stream Name: Clear Creek
• Basin: South Platte
• Title: Flood Hazard Mitigation Report
• Date: 9/1/1998
• Prepared For: Georgetown
• Prepared By: Montgomery Watson
• Floodplain - Doc Type: Flood Mitigation/Flood Warning/Watershed Restoration

TABLE OF CONTENTS

8. PUBLIC INPUT ................................,............................................,...............................8-1

8.1
8.2

Public Input W orkshop...'O..'O... ..................... ... .... .......'0.............. ....... ............... .... 8-1
Public Meeting ................................................... ...... ............................................8-1

PREFACE .............,.........................................................................................................................1

Floodplain Management.............. ..... ............................ .................................... ....... ............ I
Purpose......~...................................................................................................................... ... 2

Acknowledgement......................... ............... ... .............. ................................. ... '" .......... ..... 2

INTRODUCTION ..........................................................................................................1-1

2. COMMUNITY DESCRIPTION ...................................................................................2-1

1.

9.

ACTION PLAN ...........................................................,..................................................9-1

9.1
9.2

Pre-Flood Mitigation Actions...'O..... .........'0 ..............'0............ ...................'0...'0....9-1
Post-Flood Mitigation Actions ..................... ...'0..... ............................'0...... '" ....... 9- 3

3. PAST FLOOD HAZARD MITIGATION ACTIVITIES...........................................3-1

LIST OF TABLES

Table 4-1. Existing Hydrology and Hydraulics for Georgetown Flooding Sources ..'0.'0.............4-4
Table 4-2. Recurrence Interval of Recent Flooding Events in Georgetown, Colorado ...............4-4
Table 5-1. Structures Currently in lOO-Year Floodplain ...........................................................5-10
Table 5-2. South Clear Creek Water Storage Facilities .............................................................5-11
Table 6-1. Recommended Structural Improvements Cost Estimate ................'0..........................6-7

3.1 Non-Structural Measures....... ..................... ..................... ...... ..... ...... ... ................. 3-1
3.2 Structural Measures.................................. '0...... .................................................... 3-3

4.

CURRENT PROBLEMlISSUE IDENTIFICATION .................................................4-1

4.1
4.2
4.3
4.4
4.5

Flood History..................... ....... .............. ........ ............................ . 4-1
.........................
Flood Hazard Areas ............................................................'0.'0..,......... .... ............. 4-2
Flood Hazard Data............................................................................ .................... 4-2
Problem Assessment ........................................'0..................................................4-2
Problem Statement ............... ................. ................................... .,'0........................ 4-3

LIST OF FIGURES

After
Figure 4-1. Town of Georgetown 100- Year Flood Boundaries .........................'0........................4-4
Figure 4-2. Town of Georgetown 100- Year Flood Boundaries ..........................'0'0'0'0..........'0.....4-4
Figure 4-3. Town of Georgetown 100- Year Flood Boundaries .........................'0........................4-4
Figure 6-1. Clear Creek Profile .......................................................'0...........................................6-7

Figure 6-2. Clear Creek Profile ...........'0...................'0.....................'0.....'0....................................6-7
Figure 6-3. South Clear Creek Profile...'O..'O................'O.....'O...............'O'O.....'O'O'O.............'0.........'06-7
Figure 6-4. Town of Georgetown Flood Hazard Mitigation Improvements.......'O............'O.......'06-7
Figure 6-5. Town of Georgetown Flood Hazard Mitigation Improvements................'O..............6-7
Figure 6-6. Town of Georgetown Flood Hazard Mitigation Improvements.......'O.'O..................'06-7

5.

ALTERNATIVE FUTURE FLOOD HAZARD MITIGATION ACTIVITIES ......5-1

5.1
5.2
5.3

Introduction ............. ............. ..... ....................... ...... .................... 5-1
..........................
Alternatives ............... ............ .... ......................................................... ... ............... 5-1
Public Input.......................................................................................................... 5-8

6.

PROPOSED MITIGATION ACTIVITIES FOR GEORGETOWN ........................6-1

6.1 Nonstructural Flood Hazard Mitigation ......................................'0.......................6-1
6.2 Structural Flood Hazard Mitigation .............................................'0..........'0..........6-2

6.3 Project Prioritization ................................................................................ '0..........6-6

7. COORDINATION ......................................................................................................... 7-1

7.1 Local Coordination ........ ........... .....'0. ...... ..... ...... .........'0..... ... .......... ..'0...... ............ 7-1
7.2 Coordination with Outside Agencies .............................'0..'0................................7-1

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