FLOOD06156

• County: Statewide
• Basin: Statewide
• Title: Colorado's 1997 Flood Season in Review
• Date: 8/1/1998
• Prepared For: State of Colorado
• Prepared By: Riverside Technology Inc.
• Floodplain - Doc Type: Flood Documentation Report

Table of Contents

4.14-4

4.14-5

4.14-6

4.14-7

4.14-8

4.14-9

4.14-10

4.14-11

4.14-12
4.14-13

4.14-14
4.14-15

Figure
1.1-1
3.0-1
3.0-2
3.0-3
3.0-4
~ 4.1-1
4.1-2
I 4.1-3
4.1-4
4.1-5
4.1-6
4.1-7
4.1-8
4.2-1

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

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

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

List of Figures

Page

State of Colorado Significant Storm Events of 1997.........................1-3
lliif Stormwater Detention Basin on Goldsmith Gulch
in Denver on July 27, 1997...................................................................3-2
lo-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
Mainline Railroad Threatened by Little Dry Creek

on August 4,1997..................................................................................3-4
Baca County Vicinity Map................................................................4.1-2
Baca 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 .........................................................................................4.1-10
Road Damage and Field Inundation Along County Road 39 ...4.1-11
Baca County Damage Areas...........................................................4.1-12
Sign Waming of Water on Highway 287 .....................................4.1-13
Clear Creek County Vicinity Map...................................................4.2-2

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