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

I

I

I

Estimated Flood Dama~cs & Anv SIlccial Factors Affcctinu: the Flood

Danmge estimates for the City of Colorado Springs were unavailable for this event.
According to local otlicials. there were arcas along Sand Creek that sustained erosion
damage and several low. lying arcas in the northeastern portion of the city had mud and
silt deposits that were Jell \vhen the standing water receded. Shortly after the June 2ih
event. the Colorado Springs area n:ceivcd multiple slonns that were equal to or greater
than the June 27'h event and therefore. oflicials found it impossible to separate out the
damage sustained from only the June 27'h storm.

I

I
I
I

ICON Engineering (Icon) conducted a site visit on July 14.2004.10 the Sand Creek
drainagc.\vay on behalf of the City of Colorado Springs in order to document and
examine damage to Sand Creek including a drop structure recently designed by Icon. The
total damage sustained to the Sand Creek drainage-way is thought to have been the result
ofse\'erallarge stonns-including the June 2ih event-that hit this area. Pictures of
some of this damage arc included in the Additional Support Infonnation section of this
report.

I
I

I

During !con's site visit. surveyed high.water marks were obtained along Sand Creek in
order to estimate the maximum discharge during the nood events. It is unknmvn whether
these high-water marks were created during the June 2ih event, or a subsequent stonn,
but it is believed that the stonns that occurred after the June 27'h event were similar in
both intensity and duration to the June 27'h stonn. The estimated maximum discharge
detemlined using the measured high-water marks was found to be approximately R.OOO
cfs. When this number is compared to the discharges presented in the FIS at the sallle
location. the analysis indicates an event frequency in the region of a 50- Year event.

I

As mentioned before. a Colorado Springs home that lies within the lloodpluin ora
tributary to Templeton Gap Flood\.vay on Date Street sustained damage from the June
271h event. According to the owner. the home sutTered a 35% loss. Pictures cOllrtesy of
the Pikes Peak Regional Building Department (PPRBD) document some of the damage
sustained to the Colorado Springs area and can be found in the Additional Support
Infonnation section of this report.

I
I
I
I
I

I)mnage estimates for the To\.'m of Jamestown "'ere obtained with tht: help of several
officials with Bouldt:r County. TIle.: estimate for cleanup and mitigation of the /lnod event
\.....as $3.200 including overhead costs. According to the local lloodplain administrator.
ripmp was placed upstream and downstream oCthe unnamed gulch several ll1unlhs ago
with the help of a FEMA grant. This work ""ill more than likely need to he redone at a
cost of roughly $15.000 including materials and labor. Pictures taken by the CWCB
during its site visit are shown in thc Additional Support Information section of this report.
These pictures detail some of the damage sustained by the Town of Jamestm....n.

I
I
I

No injurit:s or cilsualties were reported for the event in Jamcstovm however. one death
was attribute.:d to /looding in Colorado Springs. KKTV News II reponed that 42-year-old
Randy UmhaLlgh drowned while.: riding his ATV along Fountain Cree.:k. It is still
unknown how exactly Mr. Umbaugh was killed but according to the EI Paso County
Emergency Services Coordinator. it is believed he was riding his A TV along the

ICON E.f-<...... ,_

13

~200~