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

Table of coJents

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4.14-4 Point Rainfall Amounts Recorded in Weld County
for June 2, 1997 ............................................................................. .... .14-9
4.14-5 Point Rainfall Amounts Recorded in Weld County

for June 13, 1997 .............................................................................4. 4-10
4.14-6 Point Rainfall Amounts Recorded in Weld County
for July 28, 1997..............................................................................4. 4-11
4.14-7 10-year and 100-year Point Precipitation Values for Various

Storm Durations ...... .......... ......... ................ ..... ........... ......... ......... ..4. 4-11

4.14-8 Summary of Storm Precipitation, Duration, and
Return Period for Weld County...................................................4. 4-12
4.14-9 Computed Peak Discharge for the Storm
Event of May 24, 1997....................................................................4. 4-22
4.14-10 Computed Peak Discharge for the
Storm Event of June 2, 1997..........................................................4. 4-23
4.14-11 Computed Peak Discharge for the
Storm Event of June 13, 1997........................................................4. 4-24
4.14-12 Chronology of Flooding in Sheep Draw for June 13, 1997......4. 4-27
4.14-13 Chronology of Flooding Over County Road 41 Near the
Intersection With County Road 20 for July 28, 1997.................4. 4-29
4.14-14 Damage Estimates From the June - July 1997 Storm Events ...4. 4-38
4.14-15 Unofficial Crop Damage Associated With the Flooding
in June and July, 1997....................................................................4. 4-39

Figure

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4.1-5

4.1-6
4.1-7
4.1-8
4.2-1

List of Figures

Page

State of Colorado Significant Storm Events of 1997.........................1-3

~~:vr:::~~~~~~~~~.~.~.~~:.~~.~~~~~~~.~~~................1...3-2

10-minute Rainfall Amounts at Aurora Fire Station No.7

on July 30, 1997..... ........................... ......... ..... ................ ................ .... ...3-3

Pedestrian Crossing of Little Dry Creek at Grove Street

in Adams County.............................. ...................... .......................... ...3-4

~~s~::l~~;~.~~~~~~~~.~.:..~.~~.~.~~~.....................1..3-4

Baa County Vicinity Map............................................................... 4.1-2

Baa County Precipitation Map ...................................................... 4.1-5
Snowplow Removing Standing Water on Highway 287............ 4.1-9
Carrizo Creek Crossing Near County Road C;............................. 4.1-9
Damage to County Road C Within the Carrizo Creek

Watershed ......................................................................................... .1-10

Road Damage and Field Inundation Along County Road 39... 1.1-11
Baca County Damage Areas........................................................... .1-12
Sign Warning of Water on Highway 287..................................... .1-13
Clear Creek County Vicinity Map.................................................. 4.2-2

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d479/tab-cont.doc 08/14/98