FLOOD10403

• County: Statewide
• Basin: Statewide
• Title: Colorado's 1997 Flood Season In Review
• Date: 8/1/1998
• Prepared For: CWCB
• Prepared By: Riverside Technology, Inc.
• Floodplain - Doc Type: Educational/Technical/Reference Information

d479/tlIlxflnt.doc 08/14/98

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Table of Con ents

Table of ontents

Section Page

1.0 Introduction ....................... .................................................................... ..1-1

1.1 Project Summary .;.................................................................... ..1-1

1.2 Purpose of Study...................................................................... ..1-1
1.3 Study Authorization ................................................................ ..1-2

1.4 General Study Area.................................................................. ..1-2

1.5 General Observations .............................................................. ..1-4

1.5.1 Meteorology ................................................................. ..1-4

1.5.2 Hydrology ...:................................................................ ..1-6

1.5.3 Emergency Preparedness and Response ................. ..1-7

2.0 Meteorology for the 1997 Flood Season............................................. ..2-1
2.1 General Meteorology ............................................................... ..2-1
2.2 Meteorology Associated with the Events of July and ........ ..2-2
August, 1997

3.0 Flood Summary for the Denver-Metro Area..................................... ..3-1

4.0 Flood Documentation............ .......... ..... ......... ............ ..... ....... ..... .......... .0-1

4.1 Baca County ................1............................................................. .1-1

4.1.1 Study Area ......;............................................................ .1-1

4.1.2 Watershed DesCription.~............................................. .1-1
4.1.3 Local Flooding Problems ........................................... .1-3
4.1.4 Storm Charactet;istics.................................................. .1-3
4.1.5 Hydrology and Hydraulic Findings ........................ .1-8
4.1.6 Specific Flooded or Inundated Areas....................... .1-8
4.1.7 Emergency Response Effort.....................................41-10
4.1.8 1997 Flood Damage...................................................4 1-11
4.1.9 Flood Hazard Mitigation .........................................41-11
4.1.10 Special Circumstances..............................................41-14
4.2 Oear Creek County .......;......................................................... .2-1

4.2.1 Study Area ................................................................... .2-1

4.2.2 Watershed Description............................................... .2-1
4.2.3 Local Flooding Problems ........................................... .2-4
4.2.4 Storm Characteristics.................................................. .2-4
4.2.5 Hydrology and Hydraulic Findings ........................ .2-8
4.2.6 Specific Flooded or Inundated Areas.....................4 2-10
4.2.7 Emergency Response Effort.....................................4 2-10
4.2.8 1997 Flood Damage...................................................4 2-10
4.2.9 Flood Hazard Mitigation .........................................4 2-11
4.2.10 Special Circumstances ..............................................42-12