FLOOD10418

• County: Boulder
• County: El Paso
• Community: Jamestown and Colorado Springs
• Title: State of Colorado 2004 Flood Documentation Report
• Date: 9/1/2004
• Prepared For: CWCB
• Prepared By: ICON Engineering, Inc.
• Floodplain - Doc Type: Flood Documentation Report

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FLOOD DOCUMENTATION REPORT

Jamestown and Colorado S~rings, Colorado
Floods of Junc 27 ,2004
(Boulder and EI Paso Counties)

Introduction

On Sunday, June 27, 2004, a large storm front,
moving northeast across Colorado, produced a
significant amount of rainfall that impacted
the City of Colorado Springs in EI Paso
County, and the Town of Jamestown in
Boulder County. According to various
sources, as much as 2.49 inches of total
precipitation fell on these areas in
approximately a 3 hour period.

Figure 1.1 - Boulder and EI Paso County
locations in the State of Colorado.
Mep court..y of the Colorado HB'llBtoIogica' Society.

The onslaught of rain produced by this storm
sent a flood producing amount of water and debris down several different drainageways
in Colorado Springs including Sand Creek. Fountain Creek. and several others. Several
low-lying areas in the northeastern portion of Colorado Springs also experienced some
minor flooding stranding at least nine motorists in their cars. In addition, four people had
to be rescued by firefighters or passers-by from drainage-ways that were usually dry. No
other injuries were reported from this event. One death occurred along Fountain Creek
when a man riding an All-Terrain Vehicle (ATV) somehow fell into the raging creek and
drowned.

In Jamestown, the rainfall produced from this stonn caused a mudslide that flowed down
an unnamed mountain gulch blocking a culvert that crosses James Canyon Road. The
resulting flow overtopped the road and inundated several roads, parking lots, and
residential yards with water and mud. There were no reported injuries or deaths attributed
to the stonn in Jamestown.

This stonn front also produced flooding that impacted the City of Golden and the Ken
Caryl Ranch area adjacent to the Massey Draw drainage-way in the southwestern portion
of the Denver Metro area. The June 27th flooding in Golden is studied within another
Flood Documentation Report that focuses specifically on that area. It is the Colorado
Water Conservation Soard's (eWeS's) understanding that the Ken Caryl Ranch
flooding is being studied in detail by another engineering consultant under contract to the
Urban Drainage and Flood Control District, and thus is not included as a study area in
this report.

fCON~rw;

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